6813 backend developer English-speaking jobs in Poland

You are comfortable moving from technical backend logic to user-facing mobile experiences. 5+ years

Design, develop, unit test, optimize, scale, maintain and improve highly scalable and secure distributed backend

The Opportunity We are looking for a GCP developer who can design, develop, test and deploy ETL/SQL pipelines

DevSecOpsExperience designing and maintaining end-to-end CI/CD pipelines.Hands-on experience with pipelines for backend

Tasks You will analyze business requirements and technical specifications for both web interfaces and backend

standalone SPA), donor, organization, and partner portals, admin tools, and several internal apps.Our backend

Requirements Strong software engineering skills with experience in distributed systems and backend development

part of the team, you will contribute to projects that span the full development life cycle - from backend

Delivery leadership: Leading large, complex technology development programs (mobile / web / backend

ML-based solutions to customers streamlining model operationalization and developing model inference backend

LLM-driven products experience working in regulated environments (insurance, finance) understanding of backend

ML-based solutions to customers streamlining model operationalization and developing model inference backend

LLM-driven products experience working in regulated environments (insurance, finance) understanding of backend

Experience in backend technologies like Kafka, Microservices.

Our backend is powered by Node.js (Koa, NestJS) and MongoDB.

Knowledge of frontend performance optimization and best practices Familiarity with backend technologies

product management experience in fintech, crypto, or financial infrastructureA solid understanding of backend

scalable, reliable, and highly-available services4+ years designing and implementing production code for backend

Tech Stack Backend: Python 3.13, FastAPI, Flask, SQLAlchemy, Pydantic, Celery Frontend: React 19, TypeScript

Then there are Backend, Frontend, or Fullstack developers, and a QA Engineer.