Senior Fullstack Developer
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Summary
Senior full-stack engineer owning features end to end: building React/Next.js/TypeScript frontends, Python (FastAPI) APIs, and event-driven systems on GCP, plus GenAI/agentic integrations with Google ADK or LangChain streamed to the UI. Remote within Poland.
Role Overview
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.
- 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.
