Middle/Senior Full-Stack Developer (Solidity, Node, React)

📅 Full-time orPart-time

What You Bring

• 4+ years of software development experience
• Strong hands-on experience with Solidity and Smart Contracts
• Proficient in Node.js, TypeScript, and React
• Experience with backend frameworks like NestJS
• Familiarity with mass payment solutions using Smart Contracts
• Understanding of blockchain architecture, DApps, and cryptographic principles
• Knowledge of asynchronous programming and event-driven design
• Relational databases and query optimization: MySQL/PostgreSQL
• Strong grasp of software design patterns and clean architecture
• Comfortable writing tests and working in CI/CD environments
• Fluent in Ukrainian and a proactive communicator

What You’ll Be Doing

• Develop, integrate, and maintain Smart Contracts in Solidity: ERC-20, TRC
• Design and build full-stack applications using Node.js, TypeScript, React, and NestJS
• Architect and implement secure, transparent blockchain-based features and workflows
• Collaborate with the Architect, PM, and Designer to ship high-quality features
• Optimize backend and database performance: MySQL/PostgreSQL
• Ensure code quality with robust unit, integration, and E2E tests
• Manage deployments and infrastructure: Docker, CI/CD, etc.
• Solve complex problems independently and proactively
• Document technical processes and systems

What You’ll Get

• Competitive compensation reflecting your skills and experience
• Freedom to experiment with new tools and frameworks
• Ongoing learning support — courses and certifications
• Paid time off: vacation, holidays, and sick leave
• A collaborative team that values your input
• Career growth opportunities as we expand
• Flexible hours & remote-first culture
• Free English lessons

About the Product: You will develop a blockchain-powered platform where every interaction is verifiable, secure, and transparent. Smart Contracts are at the core — driving mass payment systems, ensuring fairness, and enabling real-time, trustless functionality. If you’re excited by Web3, transparency, and elegant engineering, this project is for you!

About the Company: We’re a Ukrainian IT company building impactful, future-ready products for startups and enterprises across Europe and the US. We value excellence, clarity, and decentralized innovation. Here, you’ll build more than code — you’ll help reshape industries through technology.

📩How to Apply

Send your CV + answers:

1. How many years of experience do you have with NestJS, React, and Solidity?
2. What’s your practical experience with smart contracts and blockchain systems?
3. What other skills or strengths make you a perfect fit for this role?
4. What are your salary/rate expectations?
5. Where are you based?