Expert Full Stack Engineer (Web3)

TL;DR

Expert Full Stack Engineer (React/Node.js): Building and scaling wallet infrastructure and developer tooling for a Web3 and fintech platform with an accent on security, reliability, and scalability. Focus on designing rich frontend experiences and robust backend APIs for digital asset management.

Location: Must be based in the Czech Republic (Remote or Hybrid options available in Prague, Hradec Králové, and Zlín)

Company

A custom product engineering company that supports multinational organizations and scaling startups in solving complex business challenges.

What you will do

• Design and implement rich frontend experiences and scalable backend services for wallet infrastructure via the Dynamic platform
• Own features across the full stack, from technical architecture and design to implementation, testing, and deployment
• Build and maintain backend services and APIs supporting authentication, wallets, and payments infrastructure
• Develop user-facing features and tooling for both end-users and developers
• Collaborate with Product, Design, and engineering teams to deliver high-impact features
• Contribute to platform performance, reliability, and scalability improvements

Requirements

• 3–5 years of experience building and shipping production-grade full-stack web applications
• Strong proficiency with React and TypeScript on the frontend
• Experience building backend systems and APIs using Node.js (e.g., Express)
• Ability to navigate and develop within complex, evolving codebases
• Strong commitment to clean, maintainable code and system performance
• Must be based in the Czech Republic

Nice to have

• Experience with blockchain technologies such as EVM chains and on-chain integrations
• Proficiency in Solidity for writing, deploying, and testing smart contracts
• Experience maintaining and securing smart contract systems post-deployment
• Knowledge of various state management solutions in production React apps
• Experience in security products or other high-sensitivity domains

Culture & Benefits

• Flexible working hours and home office options
• 5 weeks of annual holiday and 5 sick days
• Multisport Card and meal allowance
• Internal trainings, workshops, seminars, and paid certifications
• Opportunities to participate in international conferences
• Loyalty and referral bonus programs
• Corporate events including team building and health weeks