Senior FastAPI Engineer at iFindTech | BE, DE | Rezi

Senior FastAPI Engineer at iFindTech

Senior FastAPI Engineer

iFindTech · BE, DE

1 weeks ago

Senior FastAPI Engineer

iFindTech · BE, DE

13 days ago
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About the Role

Take ownership of the backend powering AI products, building APIs, data pipelines, and orchestration layers connecting products with LLMs. Solve complex problems around AI reliability, performance, scalability, and confidential data with architectural ownership.

Responsibilities

  • Build APIs, data pipelines, and orchestration layers connecting products with LLMs.
  • Work across retrieval, tool-calling, response streaming, and long-running background jobs.
  • Solve complex problems around AI reliability, performance, scalability, and confidential data.
  • Take end-to-end ownership of backend systems.

Requirements

  • 7+ years building backend systems in production
  • 6+ years Python
  • 3+ years FastAPI
  • Strong PostgreSQL / SQL
  • 2+ years Redis
  • Strong experience designing and building production APIs
  • Experience with async / distributed systems and background processing
  • Strong understanding of reliability, scalability and production performance
  • Comfortable taking end-to-end ownership of backend systems
  • Experience using AI coding tools such as Claude Code, Cursor or Copilot
  • Comfortable working in a fast-moving startup environment

Skills

  • Python
  • FastAPI
  • PostgreSQL
  • SQL
  • Redis
  • API design and development
  • Async systems
  • Distributed systems
  • Background processing
  • Reliability
  • Scalability
  • Production performance
  • AI coding tools
  • LLM-powered applications
  • RAG / retrieval systems
  • Vector search / vector databases
  • AI agents and tool-calling
  • LangChain
  • LlamaIndex
  • SSE
  • WebSockets
  • Streaming technologies
  • Document ingestion and embedding pipelines
  • Microsoft Graph
  • Email integrations
  • External document/storage platform integration
  • Confidential data handling in AI systems

Experience Level

  • Senior

About the Company

  • Fast-growing AI company