Freelance Crypto Jobs: Find the Best Freelance Opportunities in Crypto

Legal assistance for Crypto Tax Law firm in Canada

We are looking for an experienced bookkeeper who understands cryptocurrency bookkeeping and can review our historical business transactions from 2023 through 2025.

Our books have already been reconciled by a bookkeeper. However, we recently realized that some business transactions involving stablecoins may not have been properly recorded.

Our business sometimes receives client payments in USDT or USDC and also uses USDT or USDC to pay international vendors. We do not generally purchase the stablecoins directly through a cryptocurrency exchange.

Instead, we may send U.S. dollars to a trusted third party, who then sends the corresponding USDT or USDC to our cold wallet. We may then send those stablecoins from our cold wallet to an international vendor as payment for legitimate business services. In some situations, the transaction may also occur in the opposite direction.

We are concerned that some stablecoin income, vendor payments, transaction fees, or related business expenses may not have been included in our existing bookkeeping records. This may have caused certain legitimate business expenses to be omitted from our profit and loss statements.

The goal of this project is to analyze the historical USDT and USDC activity, trace the related bank and wallet transactions, identify anything missing from the existing books, and prepare the necessary bookkeeping adjustments for review by our CPA in connection with prior-year tax filings.

Scope of Work

• Review USDT and USDC activity from 2023 through 2025
• Analyze stablecoin payments received from clients
• Review peer-to-peer or off-exchange USDT and USDC transactions
• Match U.S. dollar payments sent to third parties with the corresponding stablecoins received
• Track transfers into and out of our cold wallet
• Match outgoing stablecoin payments to vendors, invoices, contracts, and business expenses
• Review transactions where the person receiving the bank payment may differ from the wallet sending the stablecoins
• Determine the appropriate U.S. dollar value and transaction date for each entry
• Account for blockchain network fees and other transaction-related fees
• Identify missing, duplicated, or incorrectly recorded transactions
• Reconcile the findings against our already-reconciled books
• Prepare adjusting entries and supporting schedules
• Create a clear audit trail using bank records, wallet addresses, transaction hashes, invoices, messages, and payment confirmations
• Provide organized records that can be reviewed by our existing bookkeeper and CPA

Required Experience

• Professional bookkeeping experience
• Experience handling business transactions involving USDT, USDC, or similar stablecoins
• Experience with peer-to-peer or off-exchange crypto transactions
• Familiarity with cold wallets, wallet addresses, transaction hashes, and blockchain explorers
• Ability to match bank payments with stablecoins received from a separate wallet
• Experience with QuickBooks Online
• Knowledge of recording stablecoin income, vendor expenses, transfers, and transaction fees
• Strong forensic bookkeeping and transaction-reconciliation skills
• Ability to create a clear and supportable audit trail
• Experience assisting with prior-year bookkeeping corrections or amended tax filings is preferred

This is not a cryptocurrency trading or investment position. The activity primarily involved USDT and USDC, not Bitcoin or other volatile cryptocurrencies. We need someone focused on historical bookkeeping, transaction tracing, and properly documenting business income and vendor expenses.

USPTO-Registered Patent Agent required for Provisional Patents review and filing

We are seeking an experienced USPTO-registered patent agent or patent attorney to review, refine, and file provisional patent applications that have already been substantially prepared.

The applications involve advanced technologies that may include software, artificial intelligence, audio systems, digital platforms, cybersecurity, intellectual-property protection, signal processing, blockchain, and royalty-payment systems.

Scope of Work
The selected professional will:
Review the prepared application for completeness, clarity, enablement, and filing readiness;
Identify gaps that may weaken priority rights or future claim support;
Recommend and make targeted revisions where necessary;
Review technical descriptions, embodiments, drawings, inventorship, and applicant information;
Prepare the required USPTO filing documents;
Electronically file the provisional patent application;
Provide the official filing receipt and complete filed package;
Advise on the 12-month non-provisional or international filing deadline.

Requirements
Applicants must:
Be currently registered and in good standing with the USPTO;
Provide a verifiable USPTO registration number;
Have experience reviewing and filing provisional patent applications;
Be willing to sign an NDA;
Be available for prompt review and filing.

Proposal Requirements
Please include:
Your USPTO registration number;
Relevant technical and patent-filing experience;
Your hourly rate or fixed fee - for several patents
Estimated turnaround time;
Confirmation that you will personally review and file the application;
A breakdown of professional fees and USPTO filing fees.

This initial project may lead to ongoing work involving multiple provisional and non-provisional patent applications.

Please do not apply unless you are currently authorized to practice before the USPTO.

Looking for people to join our team to help with brand management on Reddit!

To work with us you must be:


-Fluent in English
-Familiar with Reddit as a platform
-Willing to write content in volumes
-Be willing to use our tracking process, create your own content, and be active in our Slack community!

About the Opportunity

I am looking for a highly skilled and consistently profitable day trader to manage trades on my live trading account. I will provide the trading capital—you will be responsible for strategy, execution, and disciplined risk management.

This is a performance-based opportunity with a profit-sharing arrangement. If you can deliver consistent results while protecting capital, this could become a long-term partnership.



What I'm Looking For

I'm seeking an experienced trader who can:

Trade a live account consistently and profitably.
Specialise in day trading and scalping, with all positions typically closed within the same trading day, while also being comfortable with short-term swing trades where appropriate.
Demonstrate a strong understanding of technical analysis, price action, market structure, and market behaviour.
Apply disciplined risk management with controlled drawdowns and favourable risk-to-reward ratios.
Trade manually or use your own indicators, systems, or automation tools (Expert Advisors are welcome but not required).
Maintain clear, professional communication by providing concise explanations of trade setups, entries, and reasoning.


Essential Requirements

Applicants should have:

A minimum of 3 years of real-world trading experience (live trading—not solely demo accounts or backtesting).
A verifiable trading record through MyFXBook, FXBlue, broker statements, or other credible proof of live performance.
Strong proficiency with MetaTrader 5 (MT5) or other compatible trading platforms.
Experience trading the major market sessions, including London, New York, and Asia.
The ability to communicate trade ideas and decisions clearly and efficiently.
Willingness to work under a profit-sharing agreement (specific terms to be discussed privately).


Preferred Qualifications

While not essential, the following would be advantageous:

Experience managing funded accounts or successfully passing proprietary trading firm challenges.
Knowledge of developing or using Expert Advisors (EAs) and other automated trading solutions.
Located within or close to the Gulf Standard Time (Dubai) timezone to support easier communication.
Ability to provide weekly trade summaries, performance reports, or risk analysis.


Compensation

This is a performance-based role with no fixed salary.

Profit-sharing structure (percentage negotiable based on experience and performance).
The stronger your performance, the greater the rewards for both of us.
You focus on generating consistent returns while I provide the trading capital and handle the operational side.


How to Apply

Please include the following in your application:

A brief introduction about yourself, including your location and timezone.
Screenshots or links showing verifiable live trading performance.
A short overview of your trading approach (for example: scalping, price action, trend-following, market structure, etc.).
Your preferred profit-sharing percentage.
Your availability and how soon you would be able to start.

We are looking for a developer to help review and complete an existing real-estate tokenization platform.

The project idea is to make real-estate investment more accessible by dividing property value into smaller digital shares. Users can invest in a portion of a property, track their holdings, and buy or sell their shares through the platform.

One of our team members will likely be unable to continue participating in the project due to a sudden accident. Therefore, we are looking to hire another developer immediately to help review, complete, and move the project forward.

The project already has a user web app, admin dashboard, and backend API. It includes identity verification, property management, payments, portfolio tracking, token minting, trading, and blockchain integration.

This is job overview.

📌 Overview
We are building a platform that makes real-estate investment more accessible by allowing property value to be divided into smaller digital shares. Instead of buying an entire property, users can invest in a smaller portion, track their holdings, and trade their shares with others. The platform is designed to connect property owners, investors, and administrators in one secure system. It includes identity verification, payment handling, ownership tracking, and a marketplace-style experience for buying and selling property shares. The main goal is to make real-estate ownership more flexible, liquid, and easier for more people to participate in.

🎯 Key Responsibilities
- Review the existing frontend, admin dashboard, and backend codebase.
- Identify completed, incomplete, and risky parts of the project.
- Improve and complete user-facing features such as sign-up, login, KYC, property browsing, portfolio, payments, and trading flows.
- Maintain and improve the admin dashboard for users, properties, KYC review, transactions, support, and settings.
- Work on backend APIs for authentication, user management, properties, payments, KYC, trading, and portfolio tracking.
- Integrate frontend and backend features smoothly.
- Fix bugs, improve code quality, and remove unstable or unfinished logic.
- Improve security, validation, error handling, and production readiness.
- Work with blockchain/Web3 developers to make sure token, wallet, and transaction data is correctly reflected in the app.
- Help prepare the project for deployment when ready.

📚 Required Skills
- Strong experience with React and modern frontend development.
- Strong experience with Node.js, Express, and TypeScript.
- Experience with MongoDB or similar database systems.
- Experience building REST APIs and integrating APIs with frontend apps.
- Experience with authentication, authorization, and secure user flows.
- Experience with payment systems such as Stripe.
- Good understanding of file uploads, email services, and third-party integrations.
- Ability to review an existing codebase and create a clear completion plan.
- Good communication and documentation skills.

💰 Salary Estimate
$8,000 - $15,000+/month

Job description:

I'm looking for one designer. Not ten. One.

The one who, when he sees a payout card posted on X or Instagram, knows exactly why it got 400 shares — and why the competitor's got 3.

I'm the founder of Spike Funded, a prop firm building the first true All-in-One platform in this industry — with a gamification architecture engineered for virality from day one. Not bolted on afterwards. Built into the product.

Here's the problem I'm solving. Right now, when a trader passes his challenge and gets paid, every firm on the market sends him a PDF. A PDF. Like a 1998 bank statement.

That moment — the moment he gets funded, the moment the money hits — is the single most emotionally charged moment of his year. And the entire industry wastes it.

I want to turn it into the most shareable thing that happens to him all year.

I want what Call of Duty figured out before everyone else: humans fight for a badge. Not only for money — for status, for visible proof, for the screenshot they drop in their group chat at 2am.

What you'll design
"Funding Certificate" card — the trader just passed his challenge. First hit of dopamine.
"FUNDED" card — the account is live. Status acquired.
"PAYOUT" card — the money landed. This is THE card. The one that hurts competitors. The one that gets screenshotted. Name, amount, date, rank.
Full RANK SYSTEM — COD Warzone / Valorant style: a visual tier progression (badges, insignias, frames, XP bars, prestige). My trader needs to want to climb. He has to see the tier above him and want it.
Who I'm looking for
You've already designed for gaming, esports, or crypto/finance. Portfolio required.
You understand prop firm codes (FTMO, FundedNext, Alpha Capital…) — and you can tell me why 90% of their visuals are forgettable.
You think social-native formats: 1080×1350, 9:16 story, OG image. Not "looks nice on Behance."
You deliver structured Figma — components, variants, variables — because these cards get generated automatically by our API. If you don't know what a Figma variable is, this isn't for you.
You're available now. Not in two weeks. Now.
Deadline

48 hours for the first deliverable (paid test). If you can't move at that speed, don't apply — that's not a judgement, it's a filter.

How to apply

Don't send me a template. I spot them in 2 seconds and delete them in 1.

Send me:

The word PRESTIGE on the first line. (Tells me you read to the bottom.)
3 pieces from your portfolio — badges, rank cards, or progression systems. Not your full book. Three.
One sentence: in your opinion, why does one payout card go viral and another one doesn't?
Your availability for the next 7 days.

First person who shows me they understand the game gets the job.

Job Description

We are seeking a Strategic Advisor – Global Markets & Institutional Strategy to provide strategic guidance on market development, institutional growth, and business expansion initiatives.
The ideal candidate will bring strong experience in global markets, institutional strategy, financial services, or emerging technologies. This role will focus on providing market insights, identifying strategic opportunities, supporting partnership development, and advising leadership on growth initiatives.
The advisor will work closely with key stakeholders to evaluate market opportunities, develop strategic recommendations, and support initiatives that strengthen institutional positioning and long-term growth.

Key Responsibilities

Provide strategic insights on global markets, institutional opportunities, and industry trends.
Support business expansion strategies and identify new market opportunities.
Advise leadership on strategic priorities, partnerships, and growth initiatives.
Analyze market developments and competitive landscapes.
Assist in developing institutional relationships and strategic partnerships.
Provide recommendations to improve market positioning and business strategy.
Support evaluation of new opportunities across financial and technology sectors.
Collaborate with internal teams on strategic projects and initiatives.
Deliver market research, insights, and executive-level recommendations.
Contribute expertise to support long-term business growth objectives.

Qualifications

Proven experience in global markets, institutional strategy, consulting, finance, or related fields.
Strong understanding of market dynamics, business strategy, and institutional ecosystems.
Experience advising executives, founders, or business leaders.
Ability to identify opportunities and provide strategic recommendations.
Strong analytical, communication, and presentation skills.
Experience working with financial services, fintech, digital assets, or emerging technologies is preferred.

Engagement Details

Position Type: Part-Time / Advisory
Location: Remote
Engagement: Flexible consulting opportunity
Experience Level: Senior / Executive

Creator Partnership Program
About Prediqo

Prediqo is building a next-generation prediction market platform where users can trade on sports, crypto, politics, gaming, entertainment, finance, and many other real-world events.

Unlike traditional platforms, we're building a Creator Partnership Program that allows creators to monetize their communities through their own prediction hubs.

The Opportunity

We're looking for experienced outreach specialists to identify and onboard creators who want to become long-term partners of Prediqo.

These are not traditional affiliate partnerships.

Instead, creators receive their own branded community on Prediqo where their audience can participate in prediction markets related to the content they already create.

Prediqo provides:

The technology
The prediction platform
User accounts and wallets
Payments
Compliance
Market settlement
Customer support

Creators simply bring their audience and continue creating great content.

How Creators Earn

Each creator receives a dedicated page on Prediqo, for example:

prediqo.io/creatorname

As their audience joins and trades on the platform, Prediqo generates platform revenue.

Creators earn an agreed percentage of the platform revenue generated by their community.

Revenue share is performance-based and may vary depending on the creator's audience size, engagement, and partnership level.

This creates a recurring income stream rather than a one-time affiliate commission.

Example

A football creator with 300,000 followers invites their audience to participate in prediction markets before and during major matches.

As thousands of followers trade through their community, both the creator and Prediqo benefit from the activity generated.

The more active the community becomes, the more both parties earn.

Your Role

We are looking for someone who can:

Identify high-quality creators.
Contact them through multiple channels.
Explain the Creator Partnership Program.
Build relationships.
Qualify interested creators.
Hand over warm opportunities for our team to finalize.

Target creator categories include:

Sports
Crypto
Finance
Gaming
Politics
Entertainment

Priority regions:

Brazil
LATAM
Europe
Asia
Selected creators in the United States.

This is intended to become a long-term creator ecosystem, and we're looking for outreach specialists who can help us build it from the ground up.

Hi,

We're looking to hire a full-time AI Engineer for a long-term position.

We're building AI systems for our construction and remodeling companies to automate marketing, sales, customer support, CRM workflows, internal operation and more.

We're looking for someone with experience in Claude (Anthropic), AI agents, prompt engineering, API integrations, MCP servers, workflow automation, and more.

If you're interested, please reply back.

Thanks!

I am looking for potential candidates who can provide me with insight for my new startup. Please dont hesitate to contact me first, as I would like to know a bit about your background first.

We run bottournaments.com — you describe a trading strategy in plain English, we
build the bot, and it competes against other people's bots on live BTC prices in
15-minute contests. Winners take a share of the pot.

Most of our raw content is already produced automatically: every contest renders a
vertical highlight video and a leaderboard graphic, posted to X, YouTube Shorts and
Instagram. What we don't have is someone shaping it — captions, hooks, formats,
posting rhythm, and engaging with the communities where our audience actually is.

WHAT YOU'D DO
- Write captions and hooks for content we already generate (about 6 videos and 4
graphics per day)
- Propose and test formats — we can re-render videos with different text and framing
- Find and engage the right communities on X (algo trading, AI agents, crypto)
- Report weekly: what you posted, what worked, what you'd change

HOW WE MEASURE SUCCESS
Not followers. We track signups by source and you'll get your own tracking link, so
your results are measured directly as accounts created from your work. We share
those numbers with you weekly.

HARD RULES (non-negotiable)
- No earnings claims, no "get rich" or "make money" framing
- Always represented as 18+, skill-based, and unavailable in some regions
- Bonus credit is never described as cash
We operate under financial-promotion restrictions. Content that breaks these gets
our accounts limited, so this matters more than reach does.

THE ENGAGEMENT
Two-week paid trial, fixed price, defined scope: 12 posts and 2 short videos, plus a
weekly report. If the numbers and the content quality are there, we continue.

TOOLS AND ACCESS
We provide the content, the data and a tracking link. You will not need account
passwords — access is delegated, and we can post on your behalf where needed.

IN YOUR PROPOSAL, PLEASE ANSWER
1. Have you worked on crypto, trading or other financial accounts? What content
restrictions did you work under, and did anything ever get flagged or removed?
2. Link one account you grew organically from under 1,000 followers, with analytics
screenshots. Growth numbers, not a portfolio of graphics.
3. Look at bottournaments.com. What would you post in your first week, and why?
Two or three specific ideas.
4. Are you doing this work yourself, or with a team?
5. Start your answer with the name of a trading bot you'd build and the one-sentence
strategy you'd give it.

Proposals that don't answer these won't be considered.

We are building a day trading platform with a lot of convenience features and advanced information available for the users.

We are looking for an experienced Project Manager to join the team for 30-40 hours/week. The product is complex, so we need someone who's willing to thoroughly understand product functionality and be responsible for the development of this product, not just for the tasks tracking and timeline control.

The team includes 3 developers, 1 tech lead, and 1 QA. The project is expected to run for approximately 3-4 months, including release preparation and stabilization.

Responsibilities:
Thoroughly learn the expected product functionality, requirements and client expectations
Assign tasks, control their execution and timeline, remove blockers
Control scope. Be sure you understand what we are building and why. Do not allow scope creep, while implementing client suggestions, whenever its feasible
Communicate with the client and clarify requirements
Set up the delivery process (ceremonies, artifacts)
Keep Asana up to date
Do some user acceptance testing to verify everything works as it should. You're not going to do the QA work, but you should be able to verify their conclusions

Mandatory qualifications:
5+ years of PM experience
Experience managing medium or large projects with multiple developers
Effective communicator - you should be able to understand vague change requests and politely push back on them, if they jeopardize project success
Experience managing web development projects
Dedicated availability for 30-40 hours/week during the project

Nice to have:
Experience with trading, fintech, broker integrations, crypto, stocks, futures, or market data platforms

Hey, I hope you're well! I'm looking for someone to help with a small Reddit engagement project. I've identified 26 relevant Reddit discussions around topics like digital sales rooms, buyer enablement and B2B sales. I've already reviewed each thread and prepared suggested responses. The work simply involves posting the responses to the relevant discussions and marking each completed thread in a spreadsheet so we can track progress. It's a really quick job. If this sounds like something you'd be interested in, let me know and I can send over the details. :)

We are looking for an experienced Web3 / Blockchain engineer to help build and improve a non-custodial crypto exchange platform.

The ideal candidate has hands-on experience building real-world crypto products such as exchanges, wallets, DEX integrations, and blockchain payment systems.

Current Platform Features:
- Non-custodial crypto exchange architecture
- EVM-based wallet management
- Wallet connection and embedded wallet integration
- Fiat-to-crypto onramp integration
- Token swap functionality through DEX protocols
- Deposit and withdrawal flows
- Smart contract interactions
- Admin-controlled escrow workflow
- Transaction monitoring and security improvements

Responsibilities:
- Review and improve current exchange architecture
- Help optimize wallet and transaction flows
- Implement and improve DEX swap integrations
- Integrate and troubleshoot crypto payment/onramp providers
- Improve blockchain security practices
- Review smart contract interactions and transaction handling
- Help prepare the platform for production launch

Required Experience:
- Strong experience building crypto exchange or DeFi applications
- Deep understanding of EVM chains (Ethereum, Polygon, Base, etc.)
- Experience with DEX integrations (0x, Uniswap, 1inch, etc.)
- Experience with wallet integrations (Privy, WalletConnect, Web3Auth, etc.)
- Experience handling blockchain transactions securely
- Understanding of non-custodial wallet architecture
- Experience with crypto onramp/offramp providers (Stripe, MoonPay, Transak, etc.)

Technical Skills:
- Solidity / Smart Contract interaction
- ethers.js / viem / web3.js
- Node.js / TypeScript
- React / Next.js
- PostgreSQL or similar databases
- REST/WebSocket blockchain APIs

Security Knowledge (Important):
Candidates should understand:
- Private key security
- Wallet architecture
- Transaction signing flows
- Replay attack prevention
- Smart contract risks
- User asset protection in non-custodial systems

Nice to Have:
- Experience launching crypto products to production
- Experience with compliance/KYB/KYC integrations
- Experience with US crypto regulations
- Experience with healthcare or data marketplace Web3 projects

We are seeking a talented Full Stack Developer to join our team for an exciting crypto project. The ideal candidate will have experience in both front-end and back-end development, as well as a strong understanding of blockchain technology. You will work closely with our product team to design, build, and maintain our web applications. If you have a passion for cryptocurrency and possess the necessary skills, we would love to hear from you!

I need someone to help build a mobile application similar to Polymarkets, but less complicated, with closed user groups and user-generated bets. The app should be user-friendly and secure, with features that allow users to create and participate in betting pools. Experience with blockchain technology is a plus. The ideal candidate will have a strong background in mobile app development and a keen eye for design.

We're looking for an experienced Rust Smart Contract Engineer to join our blockchain project for approximately 6 months.

Requirements:
- Strong Rust programming skills.
- Experience developing blockchain smart contracts.
- Knowledge of smart contract security and testing.
- Ability to write clean, maintainable code.

Preferred:
- Experience with Solana and Anchor.
- Experience building production blockchain applications.

Project:
- Develop and maintain Rust smart contracts.
- Implement new features and improve existing code.
- Test, optimize, and review smart contracts.
- Work with our team throughout the project.

When applying, please include:
- A brief summary of your Rust smart contract experience.
- Relevant blockchain projects you've completed.
- Your availability and expected hourly rate.

We're looking for a reliable engineer who can commit to a 6-month engagement and deliver high-quality, secure code. We look forward to your proposal.

We are seeking an experienced Senior Blockchain Developer to join our team for a Web3 project. The ideal candidate will have a strong background in blockchain technology and be able to develop decentralized applications. Responsibilities include designing and implementing blockchain solutions, collaborating with cross-functional teams, and ensuring the security and scalability of the system. If you have a passion for blockchain and a proven track record in Web3 development, we would love to hear from you.

We are looking for an experienced Web3/Blockchain Engineer to help us build decentralized applications and smart contracts. You should have hands-on experience with Ethereum or other EVM-compatible chains, Solidity, and Web3 tools.

We're looking for a Senior Solidity Engineer to help design, develop, and deploy production-grade smart contracts and dApps on EVM-compatible blockchains.
You'll collaborate with a talented engineering team to build cutting-edge Web3 products that deliver real-world impact.

What We're Looking For

✅ 5+ years of software engineering experience
✅ 3+ years of professional Solidity development
✅ Strong knowledge of Ethereum, EVM, and smart contract security
✅ Experience with Hardhat and/or Foundry, OpenZeppelin, Ethers.js or Viem, and TypeScript
✅ Hands-on experience building and deploying production Web3 applications

About Variational

Variational is building infrastructure for on-chain derivatives. We've built the first version of our protocol and an early version of Omni Pro, and we're now focused on the next phase—scaling the architecture, expanding the platform, and preparing it for production.

We're looking for an experienced blockchain architect who enjoys solving complex systems problems and wants to play a key role in shaping the protocol as it evolves.

What You'll Do

- Design and evolve the protocol architecture
- Architect smart contracts and off-chain infrastructure
- Build backend services, APIs, and distributed systems
- Design and implement execution, margin, settlement, and risk systems
- Drive scalability, performance, security, and reliability across the platform
- Review technical designs and contribute to key architectural decisions
- Work closely with the founders and senior engineers on core platform development

About the VAR Token

VAR is the native token of the Variational protocol and will play a central role across the ecosystem. As part of this role, you'll help design, develop, and integrate the infrastructure that powers VAR.

You'll contribute to areas such as:

- Smart contract architecture and token implementation
- Token issuance, distribution, and vesting
- Treasury and token management infrastructure
- Protocol integrations across Omni, Omni Pro, and future products
- Revenue-driven buyback and burn mechanisms
- Security, scalability, and upgradeability of the token infrastructure

This is an opportunity to build much more than a token contract—you'll help shape a core component of the Variational protocol from the ground up.

What We're Looking For

- Strong experience building distributed systems and backend infrastructure
- Experience with blockchain protocols, DeFi, or smart contracts (Solidity)
- Strong software architecture and system design skills
- Experience designing secure, scalable, production-grade systems
- Excellent engineering judgment and the ability to evaluate technical trade-offs

Experience with trading systems, exchanges, derivatives, financial infrastructure, Go, or Rust is a strong plus.

What We Offer

- Meaningful ownership over protocol architecture and technical direction
- Small, engineering-first team with direct collaboration
- Flexible engagement (consulting, part-time, or full-time)
- Fully remote work environment
- Competitive compensation

If you're excited about building protocol infrastructure, solving challenging engineering problems, and helping shape the future of on-chain derivatives, we'd love to hear from you.

We are building an early-stage platform for skill-based FPS games competitions with entry fees and prizes.

Players compete only in matches they personally participate in. We do not offer third-party betting, casino games, sportsbook services, odds, multipliers, prediction markets or chance-based gameplay.

For the MVP, users will fund competitions with USDC. The platform will keep an internal balance, lock funds when a competition is accepted, verify results using server data, credit the winner, process refunds and withdrawals, and retain a 10% service fee.

The operating company will most likely be incorporated in Costa Rica. Company registration and the final review under Costa Rican law will be handled separately by local counsel.

We are now looking for a licensed lawyer who can help us prepare the legal and compliance documents required for the MVP. We need someone who understands online gaming products, crypto payments, AML/KYC and privacy, and who is willing to review how the actual platform works rather than provide generic templates.

The main deliverables are:

Terms of Use and Competition Rules

These should cover:

user eligibility and the 18+ requirement;
open and private competitions;
entry fees, prizes and the platform’s 10% service fee;
deposits, internal balances and locked funds;
match-result verification;
cheating, collusion and prohibited behaviour;
cancellations, no-shows, disconnects and server failures;
refunds, withdrawals and disputes;
restricted countries and account limitations.
Internal AML/KYC and Sanctions Policy

The policy should cover the practical procedures we need for the MVP, including:

identity and age verification;
customer risk levels;
sanctions and PEP screening;
crypto-wallet and transaction screening;
source-of-funds checks where required;
suspicious activity review;
withdrawal checks and account restrictions;
record retention.
A short public-facing KYC/AML notice

This should explain to users when verification may be required, why a transaction or withdrawal may be reviewed, and what information we may request.

Privacy Policy

The platform may process identity-verification information, Steam and Discord account data, IP and geolocation data, wallet addresses, transaction history, match logs, demos and dispute evidence.

A practical implementation checklist

We need a clear list of what must be implemented in the product and backend, for example:

where users must confirm their age;
when Terms and Competition Rules must be accepted;
where fees and payout information must be shown;
when KYC or sanctions checks should take place;
what acceptance and compliance records must be stored.

We will provide a project brief, a description of the payment flow and view-only access to the relevant Figma screens.

The work should include one call with the founders, editable documents in Word or Google Docs and two reasonable rounds of revisions. We would ideally like to complete the work within 2–4 weeks.

We are not looking for documents copied from a casino, sportsbook or crypto-exchange template. The final documents must reflect the actual VersusArena product, its competition rules and its payment flow.

This project does not include:

Costa Rican company registration;
a formal Costa Rican Legal Opinion;
licensing applications;
a full legal review of every potential user country;
trademark work;
token documentation.

Please apply only if you are admitted to practise law in a recognised jurisdiction.

In your proposal, please include:

your jurisdiction of admission and bar or registration number;
a brief description of relevant gaming, fintech, crypto or AML/KYC work;
whether you will personally prepare the documents;
your proposed fixed fee and delivery timeline;
how many revision rounds are included.

Our listed budget is the target for the MVP package. We are open to reviewing a different fixed-fee proposal where the candidate has highly relevant experience and clearly explains what is included.

Confidential materials will be shared only with shortlisted candidates through Upwork.

We are seeking a skilled full-stack developer with experience in Web3 technologies to enhance our platform. The ideal candidate will be responsible for developing and maintaining both front-end and back-end components, ensuring seamless integration and functionality. Experience with blockchain and smart contracts is essential. The role involves collaborating with our team to identify and implement new features, troubleshoot issues, and optimize performance.

Bagcheck (bagcheck.fun) is a crypto informational tool that tells holders the one thing nobody else will: whether their bag is structurally dying or just down. We scan 2,700+ coins on liquidity, supply, holders, attention, and dev activity, publish dated verdicts, and grade ourselves in public.

The product generates endlessly shareable raw material every day: verdict cards, coin autopsies, "is it over?" calls, and a public track record.

The role

You'll launch and grow Bagcheck's TikTok and Instagram from zero. This is a hands-on role: strategy, production, posting, and iteration.

What you'll do:

Own the TikTok + Instagram content strategy and posting calendar end to end
Turn the engine's daily output (verdict cards, coin autopsies, dated calls, track-record grades) into short-form video and Reels/carousel formats at consistent volume
Engage comments and communities; drive viewers to scan their own bags on the site
Report weekly on what's working: shares, saves, profile-to-site clicks — not vanity follower counts

You're a fit if you have
A proven track record growing TikTok and/or Instagram accounts (links required — accounts you grew, videos you made)
Strong short-form editing skills and an eye for hooks that stop the scroll
Fluency in crypto culture - CT, memecoins, bagholder psychology. You know why "wen recovery" is funny and sad at the same time
Experience using AI tools (especially Claude or ChatGPT) in a real content workflow, or strong motivation to build one
Sharp English copywriting for captions and on-screen text
Comfort being data-driven: you test formats, kill losers, double down on winners

What we provide
A content engine that does the hard part: daily scored verdicts on 2,700+ coins, designed shareable cards, a public falsifiable track record
A distinctive brand system (case-file / medical-triage aesthetic) already live on the site
An existing Claude automation stack to plug into, and a founder who ships fast

To apply
Start your proposal with the word MORGUE so we know you read this
Include 2–3 links to short-form content you made or accounts you grew (with your role and the results)
Pitch one repeatable TikTok format idea for Bagcheck in 2–3 sentences
State your hourly rate and weekly availability

We'll start with a paid 2-week trial sprint, then move to an ongoing weekly arrangement if the numbers work.

# Social Media Manager & Content Creator – Crypto Gaming (Remote)

## About Us

Bitcoin Battles is a fast-growing PvP crypto gaming platform where players compete head-to-head in skill and luck-based games. Unlike traditional casinos, players battle each other, climb leaderboards, use in-game voice chat, and compete for real prizes.

We're looking for someone who lives and breathes social media and knows how to create content that gets people talking, sharing, and signing up.

This role is focused on **growth**, not just posting content.

## Your Responsibilities

* Manage our Instagram, TikTok, X and Discord.
* Turn livestreams into engaging short-form videos.
* Create viral-style Reels, TikToks and YouTube Shorts.
* Find trending sounds, memes and gaming trends.
* Design engaging posts, announcements and promotional content.
* Build and maintain a content calendar.
* Respond to comments and engage with the community daily.
* Work closely with our streamers to capture the best moments.
* Reach out to gaming, crypto and gambling creators for collaborations.
* Monitor analytics and continually improve content performance.
* Test new content ideas and identify what drives the most traffic and sign-ups.

## Weekly Expectations

* 60+ short-form videos per month.
* Daily posts across all social platforms.
* Daily community engagement.
* Creator outreach every day.
* Weekly performance reports with actionable insights.

## What We're Looking For

* Proven experience growing social media accounts.
* Strong video editing skills (CapCut, Premiere Pro or similar).
* Experience creating viral short-form content.
* Excellent understanding of TikTok, Instagram Reels and X algorithms.
* Passion for gaming, crypto or online gambling.
* Self-motivated and able to work independently.
* Strong written English.

### Bonus Skills

* Experience working with gaming, crypto or gambling brands.
* Graphic design skills.
* Motion graphics experience.
* Meme creation.
* Community management experience.
* Creator and influencer outreach experience.

## Key Performance Indicators (KPIs)

Success in this role will be measured by:

* Growth across Instagram, TikTok and X.
* Increased engagement rates.
* Website traffic from social media.
* New user registrations.
* Community growth.
* Content reach and watch time.
* Consistent delivery of high-quality content.

## Why Join Us?

This is an opportunity to help build a new brand from the ground up. You'll have creative freedom, the chance to test bold ideas, and a direct impact on the growth of an exciting crypto gaming platform.

If you're someone who understands internet culture, knows how to create content people actually want to watch, and enjoys growing online communities, we'd love to hear from you.

**To apply, please include:**

* Your portfolio or social media accounts you've managed.
* Examples of short-form videos you've created.
* Results you've achieved (followers, views, engagement, or traffic).
* A brief introduction about why you're the right fit.

Project Overview

We are looking for an experienced Full-Stack Developer to help build a next-generation decentralized finance (DeFi) platform. The project involves developing secure, scalable, and high-performance Web3 infrastructure, including smart contracts, backend services, APIs, and a modern frontend.

The ideal candidate has experience delivering production-ready blockchain applications and is comfortable working across the full technology stack.

Responsibilities
- Design and develop a DeFi platform from concept to production.
- Develop secure smart contracts using Solidity.
- Build backend services using Node.js or NestJS.
- Develop responsive frontend applications with React or Next.js.
- Integrate Web3 wallets such as MetaMask, WalletConnect, and Coinbase Wallet.
- Integrate blockchain networks including Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain.
- Develop REST APIs and GraphQL services.
- Implement staking, token management, and reward distribution logic where applicable.
- Integrate price oracles and blockchain indexing services.
- Optimize platform performance, scalability, and reliability.
- Write unit and integration tests.
- Participate in architecture discussions and code reviews.
- Prepare technical documentation.

Required Skills
- Solidity
- Node.js
- TypeScript
- React.js / Next.js
- Web3.js or Ethers.js
- REST API / GraphQL
- PostgreSQL or MongoDB
- Docker
- AWS, Google Cloud, or Azure
- Git

About Variational

Variational is building a decentralized derivatives protocol for professional trading.

Our vision goes beyond a trading application. We're building the underlying protocol, execution infrastructure, and developer platform that power sophisticated on-chain derivatives. Omni Pro is our professional trading interface, while the protocol itself is designed to support high-performance trading, capital-efficient markets, and future financial products.

We've already built the first version of the protocol and an early version of Omni Pro. Now we're looking for a senior engineer to help us build what comes next.

The Opportunity

We're looking for an engineer who enjoys understanding how systems work, questioning design decisions, and building infrastructure that's expected to scale.

You'll work directly with the founders, participate in architecture discussions, and own major technical decisions across the platform. You'll have the freedom to propose better solutions, redesign components when necessary, and help define how the protocol evolves.

What You'll Build

Your work will span both on-chain and off-chain infrastructure, including:

- Core protocol architecture
- Smart contracts and protocol integrations
- Omni Pro and trading infrastructure
- Execution, clearing, settlement, margin, collateral, and liquidation systems
- Risk engines and supporting backend services
- APIs, indexing, event processing, and distributed infrastructure
- Performance optimization, monitoring, testing, and security

You'll move between architecture, implementation, code reviews, and production operations as the platform continues to grow.

Building VAR Token

VAR is the native token of the Variational ecosystem and an important part of the protocol's long-term architecture.

As part of this role, you'll help design and build the infrastructure around VAR, including:

- Smart contract architecture
- Token issuance, distribution, and vesting
- Treasury and protocol integrations
- Revenue-driven buyback-and-burn infrastructure
- Secure, upgradeable systems that support future protocol expansion

Our goal is to build VAR as a deeply integrated protocol component rather than simply launching another token.

Who You Are

You've built production systems and enjoy solving difficult engineering problems.

You probably have experience in several of these areas:

- Solidity and EVM development
- Go, Rust, or TypeScript
- Blockchain protocols or DeFi infrastructure
- Distributed systems
- Cloud infrastructure and backend services
- Smart contract security
- System architecture and technical leadership

Experience with exchanges, derivatives, trading platforms, or financial infrastructure is a strong advantage, but exceptional engineers from other distributed systems backgrounds are equally encouraged to apply.

What We Offer

- A leading role in shaping the architecture of the Variational protocol
- Direct collaboration with the founders and significant influence on technical direction
- Small, highly collaborative engineering team with minimal bureaucracy
- Flexible engagement (full-time, part-time, or consulting)
- Remote-first environment
- Competitive compensation

If you're looking for a role where you can influence architecture, build production blockchain infrastructure, and solve challenging protocol engineering problems alongside a small, experienced team, we'd love to talk.

About Variational

Variational is building the infrastructure for the next generation of on-chain derivatives.

Our mission is to make sophisticated trading more accessible on-chain by combining high-performance protocol design with an intuitive trading experience. We've built the first version of the protocol and an early version of Omni Pro, and we're now focused on the next stage of the platform.

This is where we're looking for help.

We're looking for an experienced Full-Stack Blockchain Engineer who enjoys building across the entire stack—from smart contracts and backend services to APIs, infrastructure, and user-facing applications. If you like moving between protocol engineering and product development, you'll feel at home here.

What You'll Be Working On

As one of the core engineers on the team, you'll help design, build, and ship systems across the platform.

That might include:

- Building features for Omni Pro and future trading products
- Developing protocol smart contracts and blockchain integrations
- Building backend services, APIs, and event-driven infrastructure
- Designing execution, settlement, margin, collateral, and risk workflows
- Building internal tooling and developer infrastructure
- Improving security, scalability, reliability, and system performance
- Working closely with the founders to shape technical direction and product decisions

Building VAR Token

VAR is the native token of the Variational ecosystem and an important part of our long-term roadmap.

You'll help build the infrastructure that supports VAR across the platform, including:

- Token smart contracts
- Protocol integrations
- Distribution and vesting systems
- Treasury infrastructure
- Revenue-driven buyback and burn mechanisms
- Future ecosystem features powered by VAR

We're looking for someone who thinks beyond writing contracts and enjoys building complete systems.

Who We're Looking For

You don't need to match every technology on our stack, but you should be comfortable learning quickly and taking ownership.

You'll likely have experience with several of these:

- Solidity and EVM development
- React, Next.js, and TypeScript
- Go, Node.js, or similar backend technologies
- PostgreSQL, Redis, and modern API development
- Docker, Kubernetes, and AWS
- Web3 integrations and blockchain infrastructure

Experience with DeFi, exchanges, trading systems, or financial applications is a strong plus.

Why Join Us?

- Build across both the protocol and application layers
- Work directly with the founders in a small, highly collaborative team
- Own meaningful parts of the architecture from day one
- Flexible engagement (full-time, part-time, or consulting)
- Competitive compensation
- Remote-first with minimal bureaucracy and fast decision-making

If you're looking for a role where you can work across smart contracts, backend infrastructure, and product—and have a real influence on the direction of what you're building—we'd love to talk.

• Design and build WordPress site based on existing content and historical structure
• Clean, professional layout for crypto/finance audience
• Integration with newsletter signup (Beehiiv)
• Fast loading, mobile-responsive
• SEO basics included

Must-haves:

• WordPress expertise
• Portfolio with similar finance/crypto sites
• Can work from design brief + existing content

Budget: [Insert your budget]
Timeline: [Insert timeline]

Contact with portfolio examples.

ABOUT THE PROJECT

We are building a Universal Multi-Chain Private Payroll Protocol that leverages ZKPs (Zero-Knowledge Proofs) and FHE (Fully Homomorphic Encryption) to enable confidential payroll across Ethereum, Solana, and L2s. Transactions are fully private—no amounts, wallet addresses, or counterparty relationships are exposed on any public ledger.

CORE RESPONSIBILITIES
• Smart Contract Development – Design, deploy, and audit Solidity contracts for encrypted payroll processing (ConfidentialPayroll, cUSDC integration)
• ZK Integration – Implement zero-knowledge proof generation and verification using Ligero/Arc SDK
• FHE Integration – Manage encrypted state via Fhenix/Zama libraries for confidential payroll rosters
• Cross-Chain Settlement – Build bridge logic using Circle CCTP and Hyperlane for seamless multi-chain USDC transfers
• Backend API – Develop the 7-stage payment pipeline orchestrator using Express/TypeScript
• Optimization – Write comprehensive tests, perform security audits, and optimize gas costs

REQUIRED SKILLS
✓ Solidity – production-grade smart contract development
✓ TypeScript & Node.js
✓ Web3 libraries (ethers.js or viem)
✓ ERC-20 standards (especially USDC) and bridge mechanics

PREFERRED SKILLS
○ ZKPs (Ligero, Circom, or similar frameworks)
○ FHE libraries (Zama, Fhenix)
○ Cross-chain messaging protocols (CCTP, Hyperlane, Axelar)
○ Solana or Rust (non-EVM experience)
○ Payroll or treasury system development