Pay.com | Remote / PolandWe’re building Pay.com — a payments product used in real-world transactional flows.In Poland, we work in two product teams: Backoffice and Dashboard.We’re currently expanding the Backoffice team and looking for a Mid Fullstack Developer (B2B Contractor) who feels comfortable working across the stack.What you’ll be working on Developing and maintaining the Backoffice system supporting core payment operations Building and evolving APIs and business logic (Node.js, GraphQL) Creating and improving user interfaces in React Working with relational databases (Postgres) and basic NoSQL solutions Collaborating closely with product, dashboard, and infrastructure teams Working in a microservices architecture using Docker

Taking ownership of features — from concept to production

Tech stack TypeScript Node.js React GraphQL PostgreSQL NoSQL (basic level) Docker

Multiple microservices

What we expect Commercial experience as a Fullstack Developer (mid-level) Strong knowledge of TypeScript and Node.js Hands-on experience with React Good command of SQL (Postgres) Understanding of microservices architecture Ability to learn new technologies quickly and work independently Responsibility for code quality and production stability Nice to have Experience in fintech / payments Exposure to high-availability or transaction-heavy systems Experience working with growing, complex products What we offer Work on a real payments product A Poland-based team with low bureaucracy and no micromanagement Real influence on how the Backoffice is built and evolved Stable project with meaningful technical challenges B2B contract (contractor role): 11,000–17,000 PLN net / month Remote or hybrid work within Poland