Senior Backend & Data Engineer (Python, FastAPI, Snowflake)

Role

Senior Backend & Data Engineer (Python, FastAPI, Snowflake)

Location

Remote

Mandatory Areas

• Python background
• async programming
• FastAPI
• API integrations
• Data engineering & SQL
• Pydantic and testing framework

Must have Skills

• Python
• FastAPI
• Pydantic

Skill 1

• 7Yrs of Exp – Async Programming, Testing Framework

Skill 2

• 7Yrs of Exp – SQL

Skill 3

• 5Yrs of Exp in Telecom Domain

Graph Algorithms & Pattern Processing

• NetworkX
  • Connected components
  • Transitive closure
  • Graph construction
• Alarm correlation logic
• Regex engineering
  • IPv4 / IPv6
  • Network interface extraction
  • CI/entity extraction
• Entity classification patterns

Backend Engineering (FastAPI Stack)

• FastAPI
  • Routing
  • Dependency injection
  • Middleware
  • Streaming responses (SSE)
• Async-first backend design
• Incremental/streaming LLM responses
• Background tasks & concurrency control
• Pydantic request/response models

Frontend (React Agent UI)

• React 18/19
  • Hooks
  • Context API
  • Performance optimization
• TypeScript
• MSAL browser authentication
• JWT handling
• Streaming fetch / incremental rendering
• Real-time agent UI updates

Testing & Code Quality

• pytest
  • Fixtures
  • Parametrize
  • Markers
• unittest.mock (patch, MagicMock)
• Ruff
• pre-commit hooks
• SAST integration

Nice-to-Haves

• Ray (distributed execution)
• Columnar performance tuning
• Network operations domain knowledge
• NOC / alarm correlation familiarity