Golang Freelance Jobs

Developer Requirements

Must-Have Qualifications

- Golang Proficiency: At least 2 years of experience or
demonstrated proficiency in Golang.
- Frontend Expertise: Experience with React and frameworks like
Firebase.
- Availability: Full-time commitment.
- Language Skills: Fluency in English.
- Flexibility: Willingness to work flexible hours.

Preferred Qualifications

- Reverse Engineering: Experience with reverse engineering mobile apps is advantageous.
- Specialized Tools: Familiarity with tools like Frida and IDA is an asset.
Cloud Technology: Experience with cloud technologies is a plus.

I'm seeking a seasoned blockchain and Backend developer to create a decentralized exchange (DEX) on the Ethereum network. The platform should integrate essential features like liquidity pools, staking options, and governance tokens.
For it, I need some developers who have experiences in both of blockchain and backend development.
Regarding the tech stack, I am willing to use React, Node, JavaScript/TypeScript, Web3 and Solidity/Rust/Golang.

Key Features:
- Liquidity Pools: Users can provide liquidity to the platform and earn rewards.
- Staking Options: Opportunities for users to stake their tokens for potential gains.
- Governance Tokens: Empowering users with voting rights on platform developments.

Additionally, the platform must support integration with Trust Wallet.

Require Skills:
- Proven experience in blockchain and DEX development.
- Proficiency with Ethereum network.
- Familiarity with Trust Wallet integration.
- Knowledge of implementing liquidity pools, staking options, and governance tokens.
- React, Node, JavaScript/TypeScript, Web3 and Solidity

Skills: Blockchain, Ethereum, Smart Contracts, MERN Stack, Web3.js

Job Title: Senior Software Developer expert byp@ss Cloudflare.
Location: Remote
Job Type: Full-time 8 hours daily.
Monthly salary: 4k USD
Contract for 7 months or more

Responsibilities:

Add, implement, new app to current code and maintain efficient and reusable JavaScript and Go (Golang) code.
Develop and manage a proxy server for our Node.js applications.
Collaborate with cross-functional teams to define, design, and ship new features.
Identify and correct bottlenecks and fix bugs.

Requirements:

Join our team to continue developing our current code and add more functions, The main challenge is to render the google and cloudflare captchas, in chromium using node js, if you try it normally you will find that you are a robot and you will be blocked, then we must simulate that this is a real user to access that website, you have the skills enough?

The code is rendering all the google and cloudflare captcha code, in node js.

How works right now code ?

watch carefully video how is rendering captchas the current code.

https://youtu.be/SzTDOrygwIU

If you understand what the code does by watching the video, you are on the right track.

In order to work with me, could you create a script and record a video with your own code? That way I will be sure that we could work together. The idea is to browse ahrefs without being detected.


What is you job in our team?

Add new apps to current code.
Maintain server-side web application logic using Node.js and Go.
Utilize web scraping techniques for add new apps

Hello, I'm looking for a Golang developer to do a PoC in Golang SDK for Kubernetes in EKS to create / delete a websocket Pod . The demo can be through a simple html page , where the user can insert the size of the pod, and click to create a websocket pod and also can delete them afterward.

We provide the AWS EKS (Kubernetes) cluster , Images and the html code as well - we already have a working code - just need to bind them to the dedicated image for the Pod and EKS

Budget can be increased for the right person. Thanks

We need a GoLang developer to make fixes and enhancements to existing web based program and serve as support going forward.

We have a source code for application and want to deploy it on digital ocean platform hosting environment.

The scource code was developed using Golang, Angular, Docker, MySQL, GitHub actions for CI/CD and digital ocean analog to AWS S3. the code is not bug free.

We need to check if the server setup is complete and deploy the code to be able to test it. the task is not expected to take more than 5 days. chosen parten will be required to sign an NDA agreement.

We are seeking a Senior Dev Ops Engineer with expertise in Golang, Katzenpost, Mixnets, and 0 Knowledge Proof. As a Senior Dev Ops Engineer, you will be responsible for overseeing the development, implementation, and maintenance of our robust infrastructure. Your main focus will be on optimizing system performance, ensuring scalability and reliability, and automating operational tasks. You will work closely with the development and QA teams to streamline the deployment process and improve the overall system architecture. We require someone with extensive experience in Dev Ops, strong knowledge of Golang, Katzenpost, Mixnets, and 0 Knowledge Proof, and a proven track record of implementing and managing complex infrastructure solutions.

Skills required:
- Golang
- Katzenpost
- Mixnets
- 0 Knowledge Proof
- Dev Ops
- System performance optimization
- Scalability
- Reliability
- Automation

This is a medium-sized project with a duration of 3 to 6 months. We are looking for an expert level Dev Ops Engineer to join our team.

🚀 Join Our Team as a Skilled Golang Developer! 🚀

Are you passionate about Go and thrive on working with innovative solutions? We are looking for a talented Golang developer to contribute to a small yet impactful project.

👩‍💻 Responsibilities:
- Develop and maintain robust, scalable, and high-performance applications using Golang.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Write clean, maintainable, and efficient code along with test cases.
- Ensure the best possible performance, quality, and responsiveness of applications.
- Identify and correct bottlenecks and fix bugs.
- Help maintain code quality, organization, and automation.

🔍 Requirements:
- Proven experience as a Golang developer.
- Strong understanding of Go routines and channel patterns.
- Experience with Go frameworks and tools.
- Familiarity with RESTful APIs and JSON.
- Proficient understanding of code versioning tools, such as Git.
- Ability to write clean and efficient code.
- Excellent problem-solving skills and attention to detail.
- Strong communication and teamwork skills.

💡 Preferred Qualifications:
- Experience with microservices architecture.
- Familiarity with Docker.
- Knowledge of cloud platforms such as AWS, GCP, or Azure.
- Understanding of front-end technologies (e.g., HTML, CSS, JavaScript) is a plus.

We have built two functioning web apps on dittofi a low code platform builder. It uses golang and react.

It has a visual builder for both back end and front end.

I am very experienced and built these apps by myself so I am very familiar with how long work should take and specific items that need to be done.

I have an update I want to do for both apps but don’t have the time to implement.

Looking for someone ideally familiar with dittofi and will take on project based work

We are looking for a skilled, experienced, versatile backend cloud developer. We are looking for someone we can throw at various problems and can join our team on US working hours M-F to be part of our sprints, system designs, and take on various duties.

Skills that are a must:
- AWS
- Python
- Golang
- Microservices
- Containers

Skills that would be amazing and separate candidates from others:
- Building integrations into services like Github/Gitlab/Bitbucket/Azure Devops
- Langchain
- Productionizing AI Agents
- Dgraph
- GraphQL
- NextJS
- Knowledge of AppSec/DevSecOps

We are looking for someone who loves technology, knows the latests trends, and wants to make smart suggestions/contributions to a team.

I am seeking a qualified freelancer to guide me through an upcoming Amazon System Development Engineer (SYSDE) coding assessment. This test is a 90-minute, 2-question evaluation, and your expertise will be vital in ensuring a successful outcome.

- Fluent in Java or Python
- Proficient in object-oriented programming, with a focus on inheritance and polymorphism, encapsulation and abstraction, as well as class constructors and methods
- Strong grasp on data structures and algorithms
- Knowledgeable in system design and architecture

Your assistance will be crucial in navigating this assessment, from understanding the questions to providing clear, efficient coding solutions. Candidates with prior experience in Amazon SYSDE coding assessments will be given priority.

Skills: Java, Python, Software Architecture, Golang, Hadoop

Job Title: Senior Software Developer expert byp@ss Cloudflare.
Location: Remote
Job Type: Full-time 8 hours daily.
Monthly salary: 4k USD
Contract for 7 months or more

Responsibilities:

Add, implement, new app to current code and maintain efficient and reusable JavaScript and Go (Golang) code.
Develop and manage a proxy server for our Node.js applications.
Collaborate with cross-functional teams to define, design, and ship new features.
Identify and correct bottlenecks and fix bugs.

Requirements:

Join our team to continue developing our current code and add more functions, The main challenge is to render the google and cloudflare captchas, in chromium using node js, if you try it normally you will find that you are a robot and you will be blocked, then we must simulate that this is a real user to access that website, you have the skills enough?

The code is rendering all the google and cloudflare captcha code, in node js.

How works right now code ?

watch carefully video how is rendering captchas the current code.

(link removed)

If you understand what the code does by watching the video, you are on the right track.

In order to work with me, could you create a script and record a video with your own code? That way I will be sure that we could work together. The idea is to browse ahrefs without being detected.


What is you job in our team?

Add new apps to current code.
Maintain server-side web application logic using Node.js and Go.
Utilize web scraping techniques for add new apps

Skills: Web Security, Web Scraping, Scrapy, Data Scraping, Full Stack Development

Senior Software Developer expert byp@ss Cloudflare.
Location: Remote
Job Type: Full-time 8 hours daily.
Monthly salary: 4k USD
Contract for 7 months or more

Responsibilities:

Add, implement, new app to current code and maintain efficient and reusable JavaScript and Go (Golang) code.
Develop and manage a proxy server for our Node.js applications.
Collaborate with cross-functional teams to define, design, and ship new features.
Identify and correct bottlenecks and fix bugs.

Requirements:

Join our team to continue developing our current code and add more functions, The main challenge is to render the google and cloudflare captchas, in chromium using node js, if you try it normally you will find that you are a robot and you will be blocked, then we must simulate that this is a real user to access that website, you have the skills enough?

The code is rendering all the google and cloudflare captcha code, in node js.

How works right now code ?

watch carefully video how is rendering captchas the current code.

(link removed)

If you understand what the code does by watching the video, you are on the right track.

In order to work with me, could you create a script and record a video with your own code? That way I will be sure that we could work together. The idea is to browse ahrefs without being detected.


What is you job in our team?

Add new apps to current code.
Maintain server-side web application logic using Node.js and Go.
Utilize web scraping techniques for add new apps

I'm looking for a Golang/Nodejs Backend Service Developer who can design, develop, and maintain robust, scalable, and secure backend services using the Go programming language (Golang) and Nodejs.

The ideal candidate will have a knack for collaborating with frontend teams, integrating with databases and third-party services, optimizing system performance, and upholding best practices in code quality, testing, and deployment.

A deep knowledge of Golang, a solid grasp on RESTful API development, and familiarity with cloud platforms and containerization are essential for this role.

We are seeking an experienced Engineering Manager with expertise in Golang to lead our development team. As the Engineering Manager, you will be responsible for overseeing the planning, execution, and delivery of our software projects. This is a hands-on role where you will collaborate with cross-functional teams to drive technical excellence and ensure the successful implementation of our products.
Responsibilities:
- Manage and mentor a team of skilled Golang developers
- Drive software development best practices and ensure code quality
- Collaborate with product managers and stakeholders to define project requirements
- Provide technical guidance and support to the team
- Lead code reviews and oversee the release process
Requirements:
- Strong experience in Golang development
- Proven track record of leading and managing engineering teams
- Solid understanding of software development methodologies
- Excellent communication and leadership skills
- Ability to prioritize tasks and meet project deadlines

We offer a challenging and collaborative work environment with opportunities for personal and professional growth. If you are a passionate Engineering Manager with experience in Golang, we would love to hear from you.

Este aplicativo esta hecho en flutter, debe consumir una api hecho en go
Se debe mejorar e implementar seguridad en el api en go
Freelancer de habla hispana

Skills: Mobile App Development, Android, Golang, API, Flutter

Este aplicativo esta hecho en flutter, debe consumir una api hecho en go
Se debe mejorar e implementar seguridad en el api en go
Freelancer de habla hispana

Skills: Mobile App Development, Android, Golang, API, Flutter

I'm in need of a Golang developer to assist in the development of a CRM SaaS application. The application is being built using a microservices architecture. The key functionalities and requirements are as follows:

- **CRM Application with Microservices Architecture**: Your main task will be to translate the CRM application's requirements into a series of microservices written in Golang.

- **Feature Set**: The CRM application will have the following features and modules:
- Contact Management
- Sales Pipeline Tracking
- Task and Activity Management

- **Integrations**: I would like the CRM application to have the following integrations:
- Email Integration
- Calendar Integration
- Payment Gateway Integration

You will be provided with a detailed word document that outlines the specific requirements of the CRM SaaS application.

Ideal candidates for this project should have the following skills and experience:
- Proficiency in Golang and microservices architecture.
- Experience in developing SaaS applications, particularly CRMs.
- Familiarity with integrating third-party APIs such as email, calendar, and payment gateway solutions.
- Strong communication skills and the ability to work collaboratively to meet project deadlines.

If you have relevant experience and are confident in your ability to deliver on this project, please provide examples of similar work you've done in the past.

Skills: Golang, HTML5, PostgreSQL, React.js, Vue.js

I want to build bet365 sports book front end and back end

Skills: JavaScript, Golang, MySQL, HTML, Full Stack Development

I'm in need of a freelancer to help run my Scala-based Spark application on OSS Spark-operator within an EKS environment. The primary goal of the application is to carry out streaming analytics. The data that will be processed is located in the EKS storage.

Key requirements include:
- Expertise in Scala programming for Spark applications.
- Experience with OSS Spark-operator in an EKS setup.
- A good understanding of streaming analytics.

Your role will be to set up and run the Spark application within the EKS environment, ensuring that it can efficiently process the streaming data. If you've got the right skills and experience in this area, I'd love to hear from you.

Skills: Java, JavaScript, Software Architecture, Golang, Scala

# What we are looking for
An experienced DevOps engineer who will help us with our Ci/CD environment. We require some experience with:of:
* Kubernetes (kubectl command, create and deploy helm charts);
* AWS and Google Cloud (IAM roles and policies, a little bit of networking);
* Prometheus promql queries;
* Grafana dashboards;
* Terraform


# Deliverables
* Deploy private GitHub Runner in our Kubernetes clusters;
* Configure a single VPN and ECR repository that will be accessible by multiple AWS sub-accounts;
* Configure the GitHub action to deploy our services in the test and production environments automatically;
* Create a beautiful dashboard in Grafana;
* Possibly, to instrument backend services in Golang and Java to expose custom metrics (this point is considered a plus)

# Our tech stack
* Golang / Java / Python for the backend services
* Kubernetes (AWS EKS) and Google Cloud Run
* Google Firestore and Postgresql in Kubernetes for database
* Github Action

# Who we are
We are an Italian scale-up working on a mobile application for the education industry. Our 10k active users are growing every week.

IMPORTANT NOTES:
- Open for Applicants from these location/s only: PH
- DIRECT APPLICANTS ONLY
-To Agencies, DO NOT scout my Linkedin profile and search for my phone number and email to offer your services. You will automatically block if you call, email or WhatsApp me.

GO DEVELOPER (Go Lang)

Key Responsibilities:

Modify blockchain stack using Golang and maintain blockchain deployments
Create APIs and manage distributed systems networking capabilities of blockchain deployments using Golang
Manage and optimize CI/CD pipelines using Jenkins, GitLab CI, and Bitbucket CI/CD.
Deploy, manage, and monitor applications using Kubernetes, Helm, Docker, and Docker-Compose.
Utilize Ansible and Terraform for infrastructure automation.
Configure and manage Nginx, Grafana, Prometheus, and Kibana for efficient application monitoring and logging.
Work with AWS cloud services, including S3, EC2, EKS, Fargate, LoadBalancer, Route53, CloudWatch, IAM, SecurityGroup, NodeGroup, VPC, and ECR.
Collaborate with the development team to implement backend functionalities using Golang.
Write scripts and automate tasks using Python, Bash, and other programming languages.

Technical Skills Required:
Jenkins
Kubernetes
Helm
Docker, Docker-Compose, DockerHub
Ansible
Terraform
Nginx
Grafana
Prometheus
Kibana
GitLab CI, Bitbucket CI/CD


AWS Cloud:
S3
EC2
EKS
Fargate
LoadBalancer
Route53
CloudWatch
IAM
SecurityGroup
NodeGroup
VPC
ECR


Programming Languages:
• Golang
• C
• Python
• JavaScript/Typescript


Qualifications:
• Strong backend development skills, particularly in Golang.
• Experience with cloud infrastructure, especially AWS.
• Preferably proven experience as a DevOps Engineer.
• Excellent problem-solving skills and ability to work independently.
• Strong communication and able to speak English and Tagalog

Job Description

We're seeking a skilled Golang developer with extensive experience working with Stripe, particularly in managing Customers, Products, and Subscriptions.

Key Responsibilities

- Optimize management of two subscription-based products
Implement efficient systems for creating and managing subscriptions

- Improve overall integration with Stripe API

Requirements

- Proficient in Golang
- Extensive experience with Stripe API, especially Customers, - Products, and Subscriptions
- Strong problem-solving skills
- Ability to work independently

Project Scope

- Initially, this is a focused project dealing with specific Stripe-related tasks. However, for the right candidate, there may be opportunities for additional work on other projects.

Ideal Candidate

- We're looking for someone who has deep, practical knowledge of Stripe implementations. Your experience should go beyond basic integrations – we need someone who can navigate complex subscription scenarios and optimize our -Stripe usage.
- If you have a track record of successful Stripe integrations and are comfortable with Golang, we'd love to hear from you!

About the project

Our client is on a mission to transform the way DevOps is done. Let’s face it: designing, launching, and managing infrastructure is still a terrible experience for most organizations, but it doesn’t have to be that way!
Our client is globally recognized both for the open source tools used by thousands of companies from startups to Fortune 500s, and thought their leadership on how DevOps should be done.

Core values:
- Love making customers happy. You're on a mission to making customers happy and successful. You're eager to leverage your talents to meet their needs.
- Work-life balance leads to both better work and a better life.
- Loves to learn. You're excited abut learning new things, and looking to be at the forefront of DevOps best practices.
- Loves a challenge. You like to perform at your best by aiming high, while also taking care of yourself and those around you.
- Cares about your fellow humans. You look to make personal connections with the people you work with, and you want to work for a company whose mission and people you believe in.
- Has a passion for DevOps best practices. You're passionate about the best way to run modern cloud infrastructure in a secure, convenient, and enjoyable way.

As a Golang Developer, you will have ownership of projects through the entire development cycle - from planning and development to validation, iteration, and maintenance.

In this position, you will be expected to:
● Work collaboratively with the open source community to design and implement innovative new features at the frontier of devops tooling.
● Help maintain and improve the quality of our codebase, infrastructure, and documentation.
● Review and provide feedback on pull requests from the community and team members.
● Has extensive AWS foundations experience. You have worked for years with AWS, have deep familiarity with AWS networking (VPC), foundational best practices (Organizations, SCPs, Landing Zone), and security best practices.
● Have extensive Terraform experience. You have directly authored plenty of Terraform modules, you've operated Terraform in prod and can speak from your years of experience, and you're excited to use OpenTofu.

What you need
● 5+ years of experience in software development, with a focus on GoLang
● Experience in Terraform and DevOps. Knowledge on building command line tools.
● Proven experience with open source projects, ideally in a leadership role
● Excellent communication skills and the ability to eectively communicate with clients
● Fluency in English is mandatory!

Welcome!

Let me introduce myself. Im Karel, call me Karl. Im hiring manager of project we are working on in sector of finance.

We are backed by larger corporation - yet for this project there will be just few of us. You gonna be talking to me and to CEO directly.

We are looking for someone who can be my right hand for a while and eventually lead the backend development.

Im looking for ambitions, ego, skill, yet I need someone who can control himself be team-player and deliver. Ideally someone who doesn't have life and is willing to work long hours 😄.

No seriously, If you don't have time to go FULL-TIME in next week, please do not apply.
Need someone asap.

When we will talk for first time or you will be writing me into messages here on upwork, please use the hashtag #ambitions so I know you've read this.

You read the title, so requirements:

- You have few years of backend development.
- Postgres and node was few years of your life, listen I will understand if you are lying.
- You know other languages - python, golang, ruby, node, java.
- OpenAPI, GRPC, REST must sound boring to you, yet you love it.
- You designed databases in past, there was more then just 20 tables.
- You've been working with postgresT before, and you know plpgsql well
- You used docker, git, k8n, linux. Don't apply if you never heard of linux or you are using windows for web development.

If you know you can do backend and you can do it well and push through, please lets talk.

Im expecting hard work. However I do offer things:

- You gonna gain plenty of experience. We have people who are various backgrounds, including ML/AI, devops, frontend, mobile, even people doing marketing and ads.
- We offer good amount per hour.
- You gonna be talking to executives directly, no management bullshit.
- Longer you stay, and more good work you do, more we invest.
- Here is honesty and fair play.
- We let you implement your own ideas if you have good ones.
- And there is plenty of friendly people.

We are looking to take off MVP. You gonna start from existing codebase and your first job will be to write few API endpoints.

So hope we get change to talk.
See you around. Karl.

I'm in need of an experienced (Who Previous experience in integrating the Amadeus NDC API) developer who can create a microservice that integrates the Amadeus NDC API into our existing platform.

The primary function of this microservice will be to facilitate airline booking on our platform. The service is expected to perform basic data retrieval and display and order.

The project will require the service to authenticate with the Amadeus NDC API via WS-Security. As such, experience with this API and WS-Security protocols is a must.

Key requirements:
- Fluency in GoLang
- Previous experience in integrating the Amadeus NDC API IS A MUST
- Proficient in WS-Security
- Experience with implementing microservices, particularly in the context of airline booking systems.

If you have a solid track record in these areas, please reach out.

Skills: Software Architecture, Golang, Software Development, RESTful

I'm in need of an experienced (Who Previous experience in integrating the Amadeus NDC API) developer who can create a microservice that integrates the Amadeus NDC API into our existing platform.

The primary function of this microservice will be to facilitate airline booking on our platform. The service is expected to perform basic data retrieval and display and order.

The project will require the service to authenticate with the Amadeus NDC API via WS-Security. As such, experience with this API and WS-Security protocols is a must.

Key requirements:
- Fluency in GoLang
- Previous experience in integrating the Amadeus NDC API IS A MUST
- Proficient in WS-Security
- Experience with implementing microservices, particularly in the context of airline booking systems.

If you have a solid track record in these areas, please reach out.

Skills: Software Architecture, Golang, Software Development, RESTful

We are seeking a Software Developer Jr. with experience in frameworks like React and Svelte, and an interest in Golang and Angular. You'll be involved in designing and building software and services for both Public Administration and private companies. Our goal is to create highly reliable digital products for a diverse user base.

Responsibilities:
Design and develop customized products for our clients.
Collaborate with users and analysts to tailor products using technologies such as React, Svelte, and standard web development tools (HTML, CSS, JS).
Work closely with the development team to ensure high-quality deliverables.
Continuously improve the quality of our products.
Stay updated with modern development practices through events, conferences, and training.
What We Expect From You:

Fundamental Skills:
Open to team discussions and sharing ideas.
Always seeking new challenges.
Passionate about your work.
Ability to quickly learn new tools and languages.

Equally Important:
Good knowledge of code versioning tools, especially GitHub.
Proficient in React and Svelte.
Understanding of JavaScript (ES6+), TypeScript, HTML, and CSS.
Basic knowledge of web communication protocols.
Ability to write modular, testable, and efficient code.
Interest in bringing innovative ideas and solutions.
Passionate and curious about creating user-centric products.
Ability to work both independently and as part of a dynamic team.

What We Are Looking For:
Passion for technology and development.
Enjoyment of teamwork.
Strong logical-analytical skills.
Relevant knowledge and a willingness to learn and find information.
Pragmatism and a practical approach to problem-solving.

If you believe that your skills and expertise align with the requirements of this position, please send us your CV for review. Additionally, if you have a portfolio or examples of previous work, we would be interested in seeing them. We are eager to assess your qualifications and establish a cooperative relationship as soon as possible.

We look forward to hearing from you.