Programming & Coding Projects

Smart Contract Developer - Blockchain Defi APP

The future of Web3 starts with you — join us as a Blockchain / Web3 Developer! Requirements 3+ years of software development experience 1–2+ years of experience in blockchain, Web3, crypto, or DeFi projects Strong experience with Solidity and smart contract development in the EVM ecosystem Good understanding of Ethereum / EVM architecture, gas optimization, token standards, and smart contract security Experience with Web3 tools such as Hardhat, Foundry, Remix, MetaMask, Ethers.js, Web3.js, Viem Experience deploying and maintaining smart contracts on testnet and mainnet Knowledge of DeFi: AMMs, staking, lending, bridges, oracles, stablecoins, and liquidity pools Backend integration experience: APIs, indexers, event listeners, wallets, or transaction services Understanding of common blockchain security risks Experience with JavaScript, TypeScript, Python, Node.js, or similar backend technologies Familiarity with Git, CI/CD, testing frameworks, code reviews, and documentation Responsibilities Design, develop, test, and deploy smart contracts for Whitechain and Web3 products Build blockchain features for DeFi platforms, wallets, GameFi, and ecosystem tools Write secure and gas-efficient Solidity code Create unit tests, integration tests, and deployment scripts Integrate smart contracts with backend services, frontend apps, wallets, APIs, and blockchain infrastructure Review existing smart contract code and suggest improvements Support audits, security reviews, and vulnerability remediation Monitor deployed contracts and help resolve production issues Research new blockchain protocols, DeFi mechanics, and EVM improvements Contribute to technical documentation and best practices Nice to Have Experience with L1 / L2, rollups, bridges, validators, nodes, or RPC infrastructure Experience with audit tools such as Slither, Mythril, Echidna, Tenderly, or OpenZeppelin Defender Knowledge of The Graph, SubQuery, custom indexers, or blockchain analytics pipelines Experience with account abstraction, cross-chain protocols, or oracle integrations Open-source Web3 contributions or a public GitHub portfolio Understanding of tokenomics, staking, governance, or protocol economics Experience in fintech, crypto exchange, DeFi, wallet, or Web3 infrastructure companies If you are passionate about Solidity, EVM, DeFi, and building reliable Web3 products, we would be happy to hear from you.

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COBOL Developer - Legacy System Migration Assessment (1 week)

We're evaluating a legacy COBOL system for a migration project and need someone who can review the existing codebase, document the business logic, and assess complexity. The system handles financial transaction processing. Looking for: Production COBOL experience (mainframe or distributed) Familiar with financial/banking/insurance systems Can document business logic from existing code Available this week This is a short assessment engagement.

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Robotics Localisation /SLAM for Small UAV Navigation Research

We are looking for a robotics localisation / autonomy expert to help us select and validate the right navigation architecture for a small UAV research platform. This is not a drone-pilot, mapping or photogrammetry project. We are looking for someone with hands-on experience in robotics localisation, visual odometry, visual-inertial odometry, SLAM, sensor fusion and UAV flight-stack integration. The initial project is a short technical sprint. You will review our current sensor stack, test data and operating assumptions, then recommend a practical localisation architecture that can be built and tested on low-cost hardware. Relevant experience includes: ROS2 PX4 or ArduPilot MAVLink / MAVROS / MAVSDK Visual odometry / visual-inertial odometry SLAM, including ORB-SLAM3, VINS-Fusion, OpenVINS, RTAB-Map or similar EKF / UKF / Kalman filtering Camera and IMU calibration Optical flow OpenCV Gazebo / PX4 SITL or similar simulation tools Raspberry Pi / Jetson-class deployment Flight-log analysis and trajectory validation The output should be a concise technical recommendation covering: Recommended localisation architecture Candidate algorithms to test Sensor and calibration requirements Data logging requirements Likely failure modes Simulation and field-test plan 30-day implementation roadmap Clear recommendation on what not to do The goal is to produce a practical, buildable roadmap for improving onboard localisation on a small UAV using visual, inertial and map-based cues. Please apply only if you have direct experience with robotics localisation, SLAM/VIO, sensor fusion or UAV autonomy. In your response, please include examples of relevant previous work and briefly explain which approaches you would consider for this type of UAV localisation problem.

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Aggregation platform similar to Carslink.ai.

We are looking for an experienced developer or small team to build a vehicle search aggregation platform similar to Carslink.ai. The platform will aggregate vehicle stock from multiple independent car dealer websites using XML/JSON/API feeds and allow customers to search vehicles in one central website. Main requirements: Laravel backend preferred Vehicle feed/API integration Fast vehicle search system Dealer management panel Automatic stock syncing SEO-friendly vehicle pages Mobile responsive design Scalable architecture Important: This is NOT a standard classified website. Vehicles remain on dealer websites and our platform only imports/searches inventory and redirects traffic back to dealers. Please send: examples of similar projects estimated cost timeframe recommended tech stack Automotive marketplace or aggregation experience is a big advantage.

Next.js Frontend Support

We’re currently expanding an existing web platform and are looking for a React / Next.js developer who enjoys improving real products rather than starting from scratch. The project is already up and running, which means you’ll be working on something tangible-refining the frontend, improving user experience, and helping shape features that are actively being used. This role is well-suited for someone who prefers clear, structured work over vague requirements. Tasks are defined in advance, expectations are realistic, and the focus is on steady, meaningful progress instead of rushed delivery. You’ll be improving UI components, enhancing responsiveness, and integrating with existing APIs, while also having the opportunity to contribute to new features as the platform evolves. We value developers who take ownership of their work, communicate clearly, and care about writing clean, maintainable code. If you’re someone who enjoys polishing details and making interfaces feel smooth and intuitive, you’ll likely find this project a good fit. Experience with Tailwind CSS, TypeScript, or performance optimization is a plus, but not a strict requirement. The engagement is expected to last around two months, with an hourly rate between $25 and $50 depending on your experience. Work is managed directly through the platform with clear task breakdowns, and there are no unpaid test assignments-just a straightforward, professional collaboration from the start.

Blockchain Development Guidance & Support

I am learning blockchain development and building a project step-by-step using tutorials and hands-on implementation. I seek a skilled, reliable Blockchain Developer to provide development support and mentorship. Current scope is fixed: bug fixes and integration assistance. Responsibilities include Solidity smart contract development and debugging, deployment and testing with Hardhat or Foundry, frontend integration using React/Next.js and ethers.js, wallet connection and transaction flows with MetaMask, resolving contract/frontend interaction issues, and offering code quality, best-practice, and security-focused recommendations.

A Full-Stack Developer for AI-Powered Review Management tool

We need a full-stack developer to help build Phase 2 of the product. Current stack: Next.js NestJS PostgreSQL Prisma OpenAI API Main responsibilities: Build AI-powered review analysis features Create clean mobile-first dashboards Implement review damage detection systems Build recovery tracking and analytics Improve frontend UX/UI Work with Google Business Profile APIs Requirements: Strong Next.js + NestJS experience SaaS dashboard experience AI/OpenAI integration experience Clean UI/UX skills Strong backend architecture knowledge. Task sheet attached so please quote after viewing the task sheet, thanks