Backend Developer
Summary
Build and maintain the backend for an AI-powered home-services marketplace using NestJS, Node.js, TypeScript, PostgreSQL, and Prisma.
About TRISERS
TRISERS is an AI-powered home-services marketplace (PWA), currently at MVP stage and moving fast toward launch. We're a small, high-ownership team in Warsaw, and we're looking for a backend engineer to help build the product from the ground up.
⚡ Please read before applying
This role requires immediate availability and a valid right to work in Poland already in place (PESEL UKR / EU citizenship / permit already granted). We are not able to sponsor or wait for a new work-permit procedure for this position. On-site in Warsaw is required — this is not a remote or hybrid role.
What you'll do
Design, build and maintain the backend that powers our platform — APIs, data models, and third-party integrations
Own architecture decisions and ship features quickly in a small team
Write clean, tested, maintainable code and take part in code reviews
What we're looking for
Commercial experience with NestJS and Node.js / TypeScript
Strong PostgreSQL and Prisma — relational data modeling, query design, migrations
Solid understanding of REST API design, authentication and clean architecture
Ownership mindset, clear communication, reliable delivery
Comfortable working on-site and in English
Nice to have
Experience integrating payment systems or third-party APIs
Experience building products from an early / MVP stage
What we offer
Full-time umowa o pracę
11 000–12 000 PLN gross/month
On-site work at our Warsaw office (Wola, ul. Erazma Ciołka 13)
A real seat at the table in an early-stage company — your decisions matter here
How to apply
Apply here, or send your CV + GitHub (or a project you're proud of) to [email protected]. In your message, please confirm (1) your current work-authorization status in Poland and (2) your earliest possible start date. We review every application and reply.