Expert JavaScript Engineer (Web3)

Location: Must be based in Slovakia (Remote/Hybrid)

Salary: from €3,900 gross

Company

hirify.global is a custom product engineering company that supports multinational organizations and scaling startups to solve complex business challenges.

What you will do

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

Requirements

• 3–5 years of experience building and shipping production-grade full-stack web applications.
• Experience building backend systems and APIs using Node.js and frameworks like Express.
• Comfort working across frontend and backend systems in complex, evolving codebases.
• Strong commitment to clean, maintainable code and system performance.
• Must be based in Slovakia.
• Interest in fintech and Web3 infrastructure at global scale.

Nice to have

• Experience with blockchain technologies (EVM chains, wallets, on-chain integrations).
• Solidity experience in writing, deploying, and testing smart contracts.
• Experience with various state management solutions in production React applications.
• Experience with security products or high-sensitivity domains.

Culture & Benefits

• Work in a friendly, open-door culture that values initiative and professional growth.
• Fast-paced, agile environment championing efficiency and innovation.
• Collaboration with international, cross-functional teams on large-scale initiatives.
• Learning opportunities including Udemy access, internal meetups, and company-paid certifications.
• Flexible work arrangement allowing a balance between office and remote work.
• Extensive benefits package aligned with market standards.