Senior Node.js Engineer

We’re expanding our engineering team and looking for a Senior Full-Stack Engineer who can take ownership of complex product areas, drive technical decisions, and contribute directly to the development of a high-performance payment platform.

If you’re experienced with Node.js, React, — and ready to work closely with a US-based team — we’d be glad to meet you.

What You’ll Be Doing:

• Drive end-to-end feature development across the stack — from technical design to production delivery.
• Design, develop, and maintain backend services using Node.js, Express, and databases (PostgreSQL, MongoDB).
• Build high-quality, responsive UI components in React and ensure smooth interaction between frontend and backend.
• Participate in architectural decisions, contribute to system design, and improve overall platform scalability, performance, and reliability.
• Lead complex tasks, provide technical guidance to the team, and help shape coding standards.
• Take ownership of integrations with external services and ensure stable, well-documented APIs.

What We Are Looking for:

• 6+ years of professional experience with Node.js and React.
• Strong knowledge of JavaScript/TypeScript and modern web development practices.
• Experience designing and developing REST APIs, backend services, and database integrations (PostgreSQL, MongoDB).
• Hands-on experience with performance optimization, debugging, security best practices, and scalable architecture.
• Solid understanding of Git and collaborative version-control workflows.
• Ability to lead technical decisions and drive engineering best practices.
• Strong ownership mindset — from requirements clarification to production delivery.
• Availability to work until 12:00–1:00 a.m. Kyiv time (alignment with US clients).

Our Hiring Process:

• Intro Interview — appr. 30 min;
• Technical Interview — 60 min;
• Final Interview — 60 min;
• Project Fit Interview — up to 60 min (optional).