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November 3, 2026
Senior Full-Stack Developer
Senior • Remote
110 - 130 PLN/yr
Warsaw, Poland
Quick Facts
Role: Senior Full-Stack Engineer (Next.js, Python & GenAI)
Focus: End-to-end feature ownership across frontend, backend, event-driven systems, and GCP
Description
We are looking for a Senior Full-Stack Engineer to own features end to end, from implementation and testing to production. You will work across frontend, backend, event-driven systems, and GCP, while defining frontend standards and integrating GenAI capabilities.
Responsibilities
Own features end to end: implementation, testing, and production
Work across frontend, backend, event-driven systems, and GCP
Define frontend standards and integrate GenAI capabilities
Requirements
5+ years of full-stack development experience
Strong React, Next.js, TypeScript, MUI, and TanStack Query skills
Experience with data visualisation, including charts, dashboards, and 3D
Production experience building Python APIs (FastAPI or similar)
Knowledge of event-driven systems, message queues, SSE, and WebSockets
Experience building GenAI integrations and agentic workflows using Google ADK, LangChain, or similar frameworks, including streaming results to the UI
Familiarity with observability: logging, metrics, tracing, and frontend monitoring
Strong ownership, problem-solving, and communication skills
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