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CHAOS Industries

Senior Backend Software Engineer (Python / FastAPI)

CHAOS Industries San Francisco, California, United States · $140K–$240K/yr

Defense and Space Manufacturing · 201-500 employees

4 h ago
python Senior (5-10 yrs) Full-time United States
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About the role

You will build and maintain high-performance Python services to ingest, process, and distribute real-time sensor data. Additionally, you will own the streaming, storage, and decision-making layers for a fleet of sensors in a defense tech environment.

What they look for

Python FastAPI Backend development Real-time data systems Streaming data Message queues WebSockets Time-series data Geospatial data 3D visualization Cloud platforms Telemetry Data pipelines System architecture Security Defense systems

Requirements

Candidates must have strong production experience with Python and FastAPI, along with expertise in building real-time or streaming data systems. You must be a U.S. Person capable of obtaining a security clearance and be willing to work on-site in San Francisco.

Benefits

Medical insurance Dental insurance Vision insurance 401k FSA HSA Life insurance Stock options Relocation assistance Unlimited PTO Free daily lunch

Full description

Senior Backend Software Engineer (Python / FastAPI)

San Francisco, CA (On-site) | $140k–$240k base + pre-IPO stock options

Build the real-time backend that turns radar sensor data into decisions people can act on.

CHAOS Industries is a defense tech company founded in 2022 that has raised $1B from investors including 8VC, Accel and Valor Equity Partners. You’ll own the backend services and data pipelines that move sensor data from radars in the field to the operators who depend on it.

What you’ll do

  • Build high-performance Python services that ingest, process and distribute real-time sensor data with low latency, high reliability and security at scale
  • Build high-performance Python (FastAPI) services that ingest, process and distribute real-time data securely at scale
  • Own streaming, storage and replay of detections, tracks and telemetry for live and playback 3D geospatial views
  • Build the decision layer that coordinates a growing fleet of sensors as field conditions change
  • Shape platform architecture for new capabilities, scale and long-term maintainability

You’re a fit if you have

  • Strong production experience building backend services in Python (FastAPI or similar)
  • Built real-time or streaming data systems: message queues, WebSockets, time-series data
  • Owned a production system end to end: designed it, shipped it, fixed it when it broke
  • Real leverage from AI coding tools, with a considered view on what to delegate and what not to
  • Based in, or willing to relocate to, the San Francisco Bay Area (this role is on-site)

Nice to have

  • Geospatial or 3D data visualization in TypeScript and React
  • Edge computing, or moving data reliably over constrained or unreliable networks
  • Azure or another major cloud platform
  • Hardware, sensors, robotics, telemetry or defense systems

What you get

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

Pay range shown is base salary only and excludes equity, bonuses and benefits. Actual offers vary based on experience, skills and business needs.

Please note: Must be a U.S. Person as defined under U.S. export control regulations, as required for access to controlled technology, and able to obtain and maintain a U.S. security clearance.

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