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.
About the project: this project focuses on building a robust payment processing platform tailored for high-risk and high-volume businesses. The platform supports over 500 integrations with major e-commerce and CRM systems. Designed with scalability and performance in mind, it ensures secure, seamless payment experiences for both merchants and their customers. The team also delivers personalized support and custom solutions for complex business needs.
