Senior Backend Software Engineer (Python / FastAPI)

Location: San Francisco, California, United States; on-site. Must be based in or willing to relocate to the San Francisco Bay Area.

Salary: $140,000–$240,000 base salary per year, excluding equity, bonuses, and benefits.

Company

hirify.global is a defense technology company founded in 2022 that develops systems turning radar sensor data into actionable decisions.

What you will do

• Build high-performance Python and FastAPI backend services that ingest, process, and distribute real-time sensor 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 coordinating a growing fleet of sensors as field conditions change.
• Shape platform architecture for new capabilities, scalability, and long-term maintainability.
• Own production systems end to end, from design and delivery to incident resolution.

Requirements

• Strong production experience building backend services in Python, using FastAPI or a similar framework.
• Experience building real-time or streaming data systems, including message queues, WebSockets, or time-series data.
• Experience owning a production system end to end: designing, shipping, and fixing it when it breaks.
• Effective use of AI coding tools, with a considered approach to what should and should not be delegated.
• Must be a U.S. Person under U.S. export control regulations and able to obtain and maintain a U.S. security clearance.

Nice to have

• Geospatial or 3D data visualization with TypeScript and React.
• Edge computing or reliable data transfer over constrained or unreliable networks.
• Azure or another major cloud platform.
• Experience with hardware, sensors, robotics, telemetry, or defense systems.

Culture & Benefits

• Medical, dental, and vision insurance fully paid by the company.
• 401(k) with a 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 and a fully stocked kitchen while working on-site.

Hiring process

• Apply through the posting; the application takes approximately two minutes.