Senior FastAPI Engineer

iFindTech

10d

About The Position

We’re working with a fast-growing AI company looking for a Senior FastAPI / Python Engineer to take ownership of the backend powering its AI products. You’ll build the APIs, data pipelines and orchestration layer connecting the product with LLMs, working across retrieval, tool-calling, response streaming and long-running background jobs. This is far beyond traditional CRUD development — you’ll be solving complex problems around AI reliability, performance, scalability and confidential data, with genuine ownership over architecture and technical decisions.

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

Nice To Haves

• Experience building LLM-powered applications
• RAG / retrieval systems
• Vector search / vector databases
• AI agents and tool-calling
• LangChain or LlamaIndex
• SSE, WebSockets or other streaming technologies
• Document ingestion and embedding pipelines
• Microsoft Graph
• Email integrations
• Experience integrating with external document/storage platforms
• Experience handling confidential data within production AI systems

Responsibilities

• Build the APIs, data pipelines and orchestration layer connecting the product 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 genuine ownership over architecture and technical decisions

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed