Best Java Jobs & Projects

We are seeking a skilled developer to create a cross-platform application (both PC and mobile) that automatically recognizes paper documents and links them to a database. The ideal candidate will have experience with image processing, OCR technologies, and database management. Your expertise will help streamline our document management processes, enhancing efficiency and accuracy. If you are passionate about creating innovative solutions and have a strong portfolio in similar projects, we would love to hear from you!

Skills: Android, Java, Python, iOS, C++, Tesseract OCR, ABBYY FineReader, Google Vision AI, Zapier , Make (Integromat)

I'm seeking a software tester for my existing business. The ideal candidate should have a strong background in software testing and quality assurance. If you have relevant experience, please apply urgently.

Skills: Java, Testing / QA, Software Architecture, Software Testing, Software Development

We are looking for an experienced developer to assist with daily queries and understanding related to AWS, Apache Kafka, and Java code. The role involves providing insights, resolving issues, and enhancing our team's comprehension of these technologies. The ideal candidate will have a strong background in cloud services and messaging systems, and the ability to explain complex concepts in an accessible manner. This engagement will last for one month, requiring consistent communication and problem-solving skills.

Skills: Java, Amazon Web Services, Apache Tomcat, Apache Kafka, Python

I need a program to do the following. Needs to work on both mac os and windows.

Step 1:
- rename files in a folder by selecting images in a folder. For example: rename with ar0015_mo_c_ then add numerical value in the end ar0015_mo_c_01, ar0015_mo_c_02 etc.)
- Show result (x files renamed)

Step 1 and Step 2 can be separate function or used together in one processing.

Step 2:
- collect files names in a folder and sort in numerically (1 should be followed by 2 even if there are 10+ numbers)
- the output file will include the file extension and will be separated by |.
- ensure that it will be able to collect unlimited number of files names
- Show result (x file names collected)

There are 2 options for step 2a:
- output txt file in the same folder as the images
or
- include in the interface with a quick "copy" button (preferred if possible)

---
I'm already using a batch file but I want to use one program for both steps for easier access.

That's it. Interface should be user friendly, as intended users aren't techy.

Thank you.

Skills: Desktop Application, C++, Java

I am in need of an experienced developer who is proficient in NodeJs, ReactJs, and MySQL to create a comprehensive Human Resource Management System (HRMS). The ideal freelancer for this project should have a solid understanding and experience in developing systems with the following core functionalities:

- Employee Management: This module should provide tools for tracking employee details, their roles, performance, and other relevant information.

- Payroll Management: A robust payroll system is required to automate and streamline salary disbursement, tax deductions, bonuses, and other financial aspects related to employees.

- Leave Management: This module should facilitate the tracking and management of employee leaves, ensuring a smooth workflow even in their absence.

- HR Module: A dedicated module for HR activities, encompassing recruitment processes, employee engagement strategies, and other HR responsibilities.

- Attendance: This feature should provide tools for tracking employee attendance and punctuality.

- Certificate: A system for issuing and managing employee certificates.

The successful completion of this project will require a combination of technical skills, including:

- Proficiency in NodeJs and ReactJs for backend and frontend development, respectively.
- Extensive experience with MySQL for database management.
- Prior experience in developing HRMS or similar systems would be a significant advantage.
- Strong understanding of HR processes and requirements.

I am looking for a freelancer who can deliver a user-friendly, efficient, and comprehensive HRMS that meets all the outlined requirements.

Skills: Java, JavaScript, MySQL, Node.js, React.js

Oversee development of drivers for Scientific Data Management System (SDMS) for instrument connectivity and seamless
data integration
Experience with software programming languages, Java, Groovy preferred (5+ Years)
Hands-on experience with 3rd Party interfaces that are commonly interfaced with LIMS applications like ERP, PLM, MES,
SDMS, Instruments, etc.

Skills: Java, RESTful API, JavaScript

I'm in need of a proficient developer to create a React Native application with E-commerce capabilities. The app will be centered around physical goods and will require a few key functionalities.

Key Features:
- User Authentication: Users should be able to create accounts, log in, and manage their profiles.
- Inventory Management: The application should keep track of stock levels and notify users about availability.
- Order Tracking: Users must be able to follow their order from the moment of purchase until delivery.
- Product Reviews: Customers should have the ability to leave feedback on purchased items.
- The app should support various payment gateways including credit cards, debit cards, and PayPal.
- Users should receive push notifications for order updates, promotions, and other relevant information.

Ideal Skills:
- Expertise in React Native
- Experience with E-commerce app development
- Knowledge in implementing inventory systems
- Familiarity with creating user review systems

Your experience and proficiency in these areas will be key to the project's success. I look forward to your proposals.

Please integrate the following payment gateway: gpay. The app should feature a modern minimalist design. The backend should be built using Java for handling all server-side operations and data management. The app should feature a custom design tailored to our brand's aesthetic. Please integrate Google Analytics for tracking user activity. The inventory management system should be straightforward, sufficient for a small to medium-sized catalog. Please include our brand logo in the app design.

Skills: Mobile App Development, Android, Google Maps API, React Native

I'm looking for a professional who can assist in launching my fully developed Android application onto the Google Play Store.

Key Requirements:
- Expertise in Android app deployment
- Familiarity with Google Play Store's release procedures

Please note, I do not require assistance with app testing prior to the release. The app has been tested thoroughly and is ready for the market. Your task will primarily involve helping to navigate the release process smoothly and efficiently on play store

Skills: Java, Mobile App Development, Android, App Developer, Android App Development

I'm in need of a Windows-compatible application developer who can create a secure .exe file for me. This application will primarily function for file encryption, so experience in developing security software is a must.

Key Requirements:
- Develop a .exe application for Windows
- Implement file encryption functionality
- Handle processing of application source code
- Implement robust user authentication mechanisms to protect application access.
- Use industry-standard data encryption algorithms (e.g., AES, RSA) for secure file encryption.
- Implement comprehensive error handling to manage potential issues seamlessly.
- Optimize performance to ensure the application runs efficiently on different Windows versions.
- Include functionality to decrypt previously encrypted files securely.
- Incorporate logging features to track encryption/decryption activities for auditing purposes.
- Allow users to configure encryption settings and customize the application to their needs.
- Ensure compatibility with various file types and large file sizes.
- Design a user-friendly graphical interface for ease of use.
- Provide a mechanism for automatic updates to keep the software secure and up to date.

Ideal Candidates:
- Proficient in Windows application development
- Previous experience in creating encryption software
- Strong understanding of handling and processing source code

Skills: Java, Windows Desktop, C# Programming, Software Architecture, C++ Programming

We are seeking an expert Java developer to join our team for a long-term project. The ideal candidate will have extensive experience in Java development, a solid understanding of software design principles, and the ability to work collaboratively in a dynamic environment. You will be responsible for developing, testing, and maintaining scalable applications. If you are passionate about coding and looking for a challenging opportunity, we would love to hear from you!

Skills: Java, JavaScript, API, Android, CSS

Project Title: Design and Implement a Database for Nittany Tours

Project Overview:
I am looking for a skilled freelance database developer to design and implement a comprehensive database system for a fictional tour company, Nittany Tours (NT). NT operates land-based guided tours across the U.S. and requires a robust solution to manage its operations, including employees, vehicles, tours, cities, and customer information. This project will include database design, implementation, testing, and integration with a Java application.

The ideal freelancer should have expertise in database modeling, SQL, and Java programming. Familiarity with ER diagrams, normalization techniques, and writing detailed documentation is a must.

Project Scope:

The freelancer will be responsible for completing the following tasks:

1. Database Design:

Expand on a provided business description to finalize database requirements.
Define entities, attributes, and relationships based on the project details.
Create an ER diagram that incorporates all entities, attributes, relationships, and business rules.

2. Normalization:
Identify and document functional dependencies.
Normalize the schema to Third Normal Form (3NF).
Provide a detailed explanation of the normalization process.

3. Database Schema:
Create a database schema based on the ER diagram.
Use a clear naming convention for tables and attributes.
Define appropriate data types and constraints for attributes.

4. Database Implementation:
Implement the schema in a relational database (MySQL, PostgreSQL, or Derby Database preferred).
Populate the database with realistic test data for all tables.
Provide screenshots of populated tables.

5. SQL Queries:
Develop 10 queries that cover various use cases (e.g., retrieving employee details, tour schedules, customer feedback, etc.).
Include queries of varying complexity (simple lookups to complex joins).
Provide screenshots of query execution and results.

6. Java Application:
Write a Java program that connects to the database and executes basic CRUD operations.
Include functionality such as adding new employees, retrieving tour details, or updating customer ratings.

7. Documentation:
Provide a detailed report of the project, including:
Challenges faced and solutions implemented.
An explanation of the ER diagram and normalization steps.
Instructions for setting up the database and Java application.
A summary of what was learned during the project.

Project Requirements:
Proficiency in database design, SQL, and ER modeling.
Experience with database normalization techniques.
Ability to write a Java application to interact with the database.
Strong communication and documentation skills.
Familiarity with relational databases like MySQL, PostgreSQL, or Derby.
Experience with integrating databases into Java applications.

Deliverables:
ER Diagram in PDF format.
Normalized database schema (in 3NF).
SQL scripts for creating and populating tables.
Screenshots of populated tables and query results.
A Java application interacting with the database.
Detailed documentation in a well-structured report.

Skills: Web Development, WordPress, Web Design, HTML, JavaScript

I'm seeking a highly skilled full-stack developer to create a unique web and mobile application for me. The project will primarily utilize React.js on the front-end, with a focus on implementing various custom features.

Ideal skills for this project include:
- Proficiency in React.js for front-end development
- Expertise in both web and mobile application development
- Experience with implementing custom features in applications
- Strong problem-solving and debugging skills
- Ability to write clean, scalable, and maintainable code

The successful candidate will have a deep understanding of full-stack development, with a keen eye for UI/UX design and a commitment to delivering high-quality work on time. Let's work together to bring this project to life!

We will be using Python/Django for the back-end development. The project will feature real-time updates.

Skills: JavaScript, CSS, HTML5, React.js, Spring Boot

For testing purposes I have locally installed WSO2 Micro Integrator and its Visual Studio Code Plugin. I also have a Docker instance of an ActiveMQ 5 broker. Now I need support on
• how to connect, subscribe and listen to a topic of the ActiveMQ Broker by using the graphical and configurable capabilities of WSO2 MI in VS Code.
• Connect in ActiveMQ - failover mode respecting 2 ActiveMQ brokers and keeping the failover capabilities from ActiveMQ broker (predefined reconnection attempts in case of disconnection, reconnect to second broker in case first one is not available, etc.)
• reporting error or disconnection information that are coming from activeMQ broker (eventually taking into account of activeMQ exception and transport listeners)

These are the connection and subscription details for testing purposes:
• connection URL: failover:(tcp://activemq1:61616,tcp://activemq2:61616)?randomize=false&nested.soTimeout=60000&nested.soWriteTimeout=60000
• Login: loginUser
• password: secret
• topic: TestTopic
• ClientID: b05eeaa9-677e-49df-a8c6-d8395dd12345
• Client Name: testSubscription

Now once a message will be published to the topic of the activeMQ broker (for testing purposes manually done with activeMQ web console) the WSO2 MI should
• consume the message (JSON formatted)
• extract the value of 'type' and 'object.Value'
• call REST web Service (GET) 'http://localhost:8080/GetTrueOrFalse with the request body json formatted of type and object.Value. This call will return either true or false.

I am interested in having a demonstrator for testing purposes, which is using as much as possible ootb graphical flow capabilities with configuration in Visual studio Code and as less as possible customization. The test environment is already set with local installation of WSO2 + Visual Studio Code, ActiveMQ 5 broker on docker with appropriate settings as well as web service for http request for testing purposes.

Skills: Java, WSO2 MI, Automated Workflow, Business Process Automation

I'm seeking a seasoned developer to create a comprehensive web app and a mobile app for both iOS and Android, focused on e-commerce.

Key Requirements:
- Designing an intuitive, user-friendly interface
- Implementing secure payment gateways
- Ensuring mobile responsiveness and cross-platform compatibility
- Incorporating robust product display and search features
- Facilitating social sharing and user reviews
- Prioritizing SEO and site speed optimization

Ideal Skills and Experience:
- Proven experience in e-commerce app development
- Proficiency in Java, Swift, HTML, CSS, and JavaScript
- Familiarity with UX/UI design principles
- Knowledge of SEO best practices
- Experience with secure payment integration
- Excellent problem-solving skills and attention to detail

Skills: Mobile App Development, iPhone, Android, CSS, HTML5

**Job Description:**
We are seeking highly skilled developers to contribute to the maintenance and enhancement of our existing mobile applications, which are developed using Objective-C and Swift for iOS, as well as Java for Android platforms. The ideal candidates will possess a flexible approach to work during US Eastern Standard Time (EST) hours and demonstrate substantial experience in mobile application development.

Skills: Java, Objective-C, Android Development, Software Development, App Development, Mobile Development, iOS App Development, Swift Programming, App & Mobile Programming

I need help installing Binance APK on Android Studio emulator it keeps crashing only apply if you can help me run the apk smoothly on android studio emulator


budget is 5 usd

Skills: Java, Mobile App Development, Android, Android App Development, Android Studio

looking for a full stack shopify and web developer to join our project
along with this we expect you to have knowledge of java scripts like node, next or/and react
you will need to know the following
-HTML
-CSS
-Liquid coding
-Jquery / Javascript / JSON
- Create new sections and make them dynamic
-Meta object / Meta Field
-Create new themes and functionalities within shopify
-Good responsive & Design skills on the website s
-API & Custom feature development for shopify

Skills: JavaScript, HTML, jQuery, React, HTML5, API Integration, Web Development, SEO Performance

**Job Description:**

We are seeking highly skilled developers to contribute to the maintenance and enhancement of our existing mobile applications, which are developed using Objective-C and Swift for iOS, as well as Java for Android platforms. The ideal candidates will possess a flexible approach to work during US Eastern Standard Time (EST) hours and demonstrate substantial experience in mobile application development.

Skills: Android, iOS, Smartphone, Mobile App Development, iOS Development

I'm looking to develop an online test series for my coaching institute targeted at IIT JEE and NEET aspirants. The tests should cover both sets of subjects - Physics, Chemistry, Mathematics for IIT JEE and Physics, Chemistry, Biology for NEET.

Key Requirements:
- The test series should include both multiple choice and subjective questions.
- While I'm unsure about adaptive testing features, I would appreciate input on whether this could enhance the test series.
- Ideally, the developer should have a strong understanding of the IIT JEE and NEET exam patterns and difficulty levels.
- The platform should include fully simulated mock exams for students to practice under realistic exam conditions.
- Include detailed analytics for students to track their progress, strengths, and weaknesses.
- Tests should be timed to simulate real exam conditions and improve time management skills.
- Ensure the platform is fully functional and optimized for mobile devices.
- Design the platform to be intuitive and user-friendly for both students and administrators.
- Provide detailed and personalized feedback after each test to help students improve.
- Implement robust security measures to prevent cheating and ensure the integrity of the test series.
- Include provisions for regular updates and maintenance to ensure the platform remains current and functional.

Skills & Experience:
- Experience in creating online test series.
- Familiarity with IIT JEE and NEET exam formats.
- Knowledge of both multiple choice and subjective question formats.
- Input on adaptive testing features would be valued.

Include advanced analytics for student performance tracking. The platform should have a modern and sleek user interface design. The platform should integrate single sign-on (SSO) for user convenience.

The platform should support a one-time payment model for accessing the test series. User authentication should be based on email and password for security. Provide detailed feedback on each question along with overall performance post-test completion. Add analytics to track time spent per question to help students improve their pacing and time management skills.

Skills: PHP, Java, Testing / QA, Software Testing, Mathematics

I'm seeking a skilled developer to create web-based user forms for my SQL database. The primary functionality of these forms includes data entry and validation, as well as report generation.

Key Responsibilities:
- Develop interactive, user-friendly web-based forms
- Implement robust data entry and validation features
- Incorporate report generation capabilities within the forms

Ideal Skills and Experience:
- Proficient in SQL and web development
- Experience in creating interactive web-based user forms
- Strong understanding of data validation techniques and report generation

Please provide examples of similar projects you've completed in your proposal.

The web-based forms should be developed using React for the frontend and NodeJS for the backend. The project will involve developing 5-10 complex forms. The forms should include standard data validation techniques such as required fields, format checks, and range validations.

Skills: PHP, Java, JavaScript, MySQL, HTML

We are looking for a skilled Senior Developer with extensive experience in data transformation and conversion with UKG (Ultimate Kronos Group) systems. The ideal candidate should be adept at analyzing and integrating complex data sets and possess strong problem-solving skills to enhance our existing infrastructure. If you have a proven track record in developing and executing effective data solutions, we would love to hear from you!

Technical Skills:
• Experience in specialized functional areas (HRIS, Benefits, HR, Payroll, Workforce Management, etc.)
• Knowledge of HRIS Vendors such as ADP, Workday, UltiPro, Ceridian, SAP Success Factors, Oracle HCM, Oracle Peoplesoft, etc.
• UKG Products (Pro, Dimensions, Ready)
• Development languages (.NET, Java, JavaScript, JSON, SQL)
• Development tools (source control, defect tracking tools, Postman, etc.)
• Integration Platforms (Boomi, Mulesoft)

Skills: Python, SQL, JavaScript, Java, Microsoft Excel

We are looking for an experienced developer to create a bot that automates the process of finding and applying for jobs on Upwork. The bot should streamline job search and application processes while allowing for customization to fit specific job criteria.

Key Features Required:

Job Search Automation:

Search for jobs based on predefined keywords, filters, and categories.
Update job listings in real time or at scheduled intervals.
Customizable Application Settings:

Auto-fill job proposals using pre-saved templates.
Insert personalized details dynamically, such as client name or job title.
Allow manual review and adjustments before submission.
Job Matching:

Match jobs based on skills, experience level, and project budget.
Filter out irrelevant or low-quality jobs.
Notification System:

Send alerts for high-priority jobs that meet specific criteria.
Notify of application success or errors.
Dashboard for Management:

View applied jobs and their statuses.
Track responses from clients.
Technical Requirements:

The bot must comply with Upwork's Terms of Service and avoid violating their policies.
Compatibility with Upwork’s API or other necessary integrations.
Intuitive and user-friendly interface for setup and management.
Preferred Skills:

Experience with automation tools and bots.
Knowledge of Upwork’s platform and API.
Proficiency in programming languages like Python, JavaScript, or similar.
Familiarity with web scraping (if necessary and within policy boundaries).
Budget: Open to proposals; please provide a quote based on your experience and the scope of the project.

Timeline: Ideally, the project should be completed within 2-4 weeks.

If you’re interested, please provide:

Examples of similar automation or bot projects you’ve worked on.
Your suggested approach to ensure compliance with Upwork's terms.
Your estimated timeline and cost for completing this project.

Skills: Python, Java, Artificial Intelligence

Soy profesor de formación profesional de grado superior en Madrid para 35 alumnos de daw (desarrollo de aplicaciones web) y dam (desarrollo de aplicaciones multiplataforma). Necesito ayuda ya que no tiempo para conseguir tantas, ya que las necesito para final de año.
Estoy dispuesto a pagar $5 (negociables si se consiguen varias) por cada acuerdo de prácticas conseguido, lo que poptencialmente le permitiría conseguir $175 por enviar unos cuantos emails.
La información necesaria es:
- Son estudiantes de 1º curso de los ciclos anteriormente mencionados. Llevan unos 3 meses en la formación y ya conocen Windows/Linux, y saben programar con Java, html, css y javascript.
- Cualquier conociemiento extra que pueda requerir una empresa, siempre que no se salga demasiado de estos conocimientos, aún estamos a tiempo de formarles en lo que requiera cada empresa
- Las prácticas son del 10 de febrero al 14 de marzo, 7h/día (pueden acabar antes si hacen 8h/día)
- Deben ser en Madrid. Alguna, como excepción, puede ser remota, pero sólo alguna
- El centro académico es Medac.
- No pagamos a las empresas por acoger estudiantes, pero la empresa tampoco tiene que pagar por esa mano de obra (intentar aportar eso como valor)
- El alumno puede continuar en esa empresa después del periodo obligatorio, si tanto empresa como estudiante lo consideran oportuno (con un nuevo contrato de prácticas, con uno de formación, con uno completo...)
- Los alumnos varían entre los 20 y los 25 años aproximadamente (aportar esta información sólo si la solicitan)
A ser posible, intentar sonar con acepto español, para transmitir más confianza y cercanía.
Si se consigue un acuerdo, decirles que yo les escribiré para formalizarlo, desde el correo pablo.gonzalezs @ doc.medac.es

Skills: Email Marketing, Email Handling, Mailchimp, Email Campaign

Understand the project needs: Learn what the store owner wants the app to do.
Plan and build the app: Use programming skills to create an app that works well with Shopify.
Test and improve: Make sure the app runs smoothly without bugs and update it based on feedback.
Support and maintain: Provide help to store owners using the app and keep it updated as Shopify changes.

Skills: JavaScript, Swift, Java, User Profile Creation, User Authentication

Project Overview

This project is a WeChat mini program designed for event management and participation. The system will allow users to post and join various activities (such as basketball, billiards, and hiking). The platform will have user roles (individuals, clubs, and businesses) and include features like AR navigation, integrated payment systems, and real-time chat.

Development Languages and Tools

Front-end Development:

Languages: WXML, WXSS, JavaScript (in line with WeChat mini program requirements), or using React Native.
Back-end Development:

Language: Java (based on your preference).
Frameworks:
Django for a robust and scalable backend.
MyBatis for database management (easily integrates with MySQL or other relational databases).
We hope you are proficient with WeChat Developer Tools and familiar with the specifics of mini program development, including compliance with Chinese laws and adhering to WeChat's review process. This includes:

Real-time communication features and payment gateway integration.
Handling WeChat-specific limitations, including optimizing for successful review.
Integrating Tencent Maps and third-party APIs tailored for Chinese users.

Skills: Mobile App Development, Android App Development, Flutter, Kotlin, Android, iOS Development, HTML5, Mobile App, Android App, Front-End Development, Landing Page, Website, AI Bot, AI Chatbot, Chatbot

I'm using Android Studio with the latest Flutter, Java SDK 20, and Gradle 8.2, but my projects won't run due to multiple errors.

You will need to:
- Diagnose and fix Gradle build errors
- Resolve Flutter SDK issues
- Correct IDE configuration problems
- Check compatibility of dependencies with Gradle 8.2

The ideal candidate for this project should have extensive experience with Android Studio, Gradle, and Flutter. You should also have strong troubleshooting skills and be able to work remotely.

Skills: Java, Mobile App Development, Android, XMPP

I am looking for a Full Stack Android Developer with extensive experience in creating finance-related applications to help me develop a stock market app targeted at individual investors.

Key Features:
- Real-time stock quotes: The app should be able to provide up-to-the-minute stock prices.
- Portfolio tracking: Users should be able to track their personal stock portfolios.
- Stock news and analysis: The app should deliver the latest stock news and provide analytical insights.

Ideal Skills and Experience:
- Proven experience in developing Android apps, particularly in the e-commerce or finance sector.
- Strong understanding of integrating real-time data feeds into applications.
- Ability to create user-friendly interfaces catered towards individual investors.
- Knowledge of stock market and finance to provide insights into app functionality and design.

Skills: Java, Mobile App Development, iPhone, Android, Mobile App Testing

I'm seeking a skilled JavaScript developer to help me improve a front-end script. The main task will be adding new features to the script.

 

Skills: Website Management, Web Hosting

I would like to scrape prices from the following pages:

https://shop.next2vet.se/category.html/sprutor-kanyler-infusion-sonder-dran .

https://www.mwiah.se/Katalog_webbplatsrot/Foerbrukning

This is the consumables section in the webshops (Förbrukningsvaror).

I am interesten in Article nr, description, specification, brand (if available), price and price unit if available.

Skills: Selenium, Data Entry, ETL, Scripts & Utilities, Data Mining, Data Scraping, Java

I'm looking for a professional who can assist in launching my fully developed Android application onto the Google Play Store.

Key Requirements:
- Expertise in Android app deployment
- Familiarity with Google Play Store's release procedures

Please note, I do not require assistance with app testing prior to the release. The app has been tested thoroughly and is ready for the market. Your task will primarily involve helping to navigate the release process smoothly and efficiently on play store

Skills: Java, Mobile App Development, Android, App Developer, Android App Development