Senior Backend Software Engineer (Python / FastAPI)

Quick Facts

• Role: Senior Backend Software Engineer (Python / FastAPI)
• Location: San Francisco Bay Area (on-site)
• Focus: Real-time backend for radar sensor data

Description

You will build high-performance Python (FastAPI) backend services that ingest, process, and distribute real-time sensor data with low latency, high reliability, and security at scale. You’ll own streaming, storage, and replay of detections, tracks, and telemetry for live and playback 3D geospatial views, and help coordinate a decision layer for a growing sensor fleet.

Responsibilities

• Build Python services for ingesting, processing, and distributing real-time sensor data
• Develop FastAPI services for secure, scalable real-time data delivery
• Own streaming, storage, and replay for detections, tracks, and telemetry
• Coordinate the decision layer that adapts to changing field conditions
• Shape backend/platform architecture for new capabilities, scalability, and maintainability

Requirements

• Strong production experience building backend services in Python (FastAPI or similar)
• Experience building real-time/streaming data systems (message queues, WebSockets, time-series data)
• Ownership of a production system end to end (design, ship, fix when it breaks)
• U.S. Person status per U.S. export control regulations
• Ability to obtain and maintain a U.S. security clearance
• Based in, or willing to relocate to, the San Francisco Bay Area (on-site)

Benefits

• Medical, dental, and vision (100% paid by the company)
• 401k with 50% company match up to 6% of pay; FSA; HSA; life insurance
• Pre-IPO stock options; relocation assistance; annual bonuses (coming soon)
• Unlimited PTO; casual dress code
• Free daily lunch while on-site; fully stocked kitchen