Node.js Engineer

A FinTech payment gateway for the US market. The platform integrates with payment providers and processes transactions for US-based merchants.

What You’ll Be Doing

• Develop and maintain features across the full stack — from task clarification to production release.
• Build and support backend services using Node.js (Express).
• Work with databases, primarily PostgreSQL, and occasionally MongoDB.
• Develop responsive UI components using React and ensure smooth frontend-backend interaction.
• Integrate with external payment providers and maintain stable, well-documented APIs.
• Participate in code reviews and contribute to improving code quality and maintainability.
• Support debugging, issue resolution, and performance improvements in collaboration with senior engineers.

Requirements (Middle Level)

Must-have:

• 2–4 years of commercial development experience (full-stack or backend with React experience as a plus).
• Solid knowledge of Node.js and experience with Express or a similar framework.
• Experience designing and developing REST APIs (validation, status codes, authentication, versioning).
• Practical experience with PostgreSQL (queries, basic indexing, simple query optimization).
• Hands-on experience with React (components, hooks, forms, API integration).
• Good understanding of Git and collaborative workflows (PRs, code reviews, branching strategies).
• Ability to independently handle medium-complexity tasks, clarify requirements, and deliver features to production.

Nice to Have:

• Experience with MongoDB.
• Exposure to FinTech, payment integrations, or understanding of PCI-related constraints.
• Basic experience with unit/integration testing.
• Familiarity with Docker and CI/CD pipelines.

Working Hours

• Availability to work with US stakeholders - approximately 16:00 - 01:00 Kyiv time.