Senior Fullstack Developer

New
L
Link GroupAI software
Workplace type: remote; Country code: PLContractSenior
Salary110 - 130 PLN per hour
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Job Details

Experience
5+ years of full-stack development experience.
Required Skills
PythonTypeScriptFastAPINext.jsReactLangChain

Requirements

  • Have 5+ years of full-stack development experience.
  • Bring strong React, Next.js, TypeScript, MUI, and TanStack Query skills.
  • Have experience with data visualisation, including charts, dashboards, and 3D.
  • Have production experience building Python APIs with FastAPI or similar.
  • Know event-driven systems, message queues, SSE, and WebSockets.
  • Have experience building GenAI integrations and agentic workflows using Google ADK, LangChain, or similar frameworks.
  • Be familiar with observability, including logging, metrics, tracing, and frontend monitoring.
  • Demonstrate ownership, problem-solving, and communication skills.

Responsibilities

  • Own features end to end, from implementation and testing to production.
  • Work across frontend, backend, event-driven systems, and GCP.
  • Define frontend standards.
  • Integrate GenAI capabilities.
  • Build GenAI integrations and agentic workflows, including streaming results to the UI.
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110 - 130 PLN per hour
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