Robotics Software Engineer

Theseus is a defence and military technology company that designed, 3D-printed, and built a drone for GPS coordinates without a signal—using only a camera and Google Maps. DIY drones are effective but heavily reliant on…

Location: San Francisco, CA, US
Company size: 5–10
Posted: Today
Via: Yc

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Job listing · Updated 15 SEP 2026

Robotics Software Engineer

Theseus· San Francisco, CA, USView company profile

Job title: Robotics Software Engineer
Job location: San Francisco, CA, US
Job listing URL: https://www.ycombinator.com/companies/theseus/jobs/yUlD33Z-robotics-software-engineer
Job description: **Who we are** Theseus is a defense technology company building positioning to solve navigation for the next 10 million drones. Our products are already being used in real operational environments today. We’re a small team with high ownership and accountability, and we’re looking for engineers who want to move fast, build against real-world constraints, and see their work deployed in the field. **The role** We’re seeking a Robotics Software Engineer to help build the core of our autonomy stack. You’ll work on visual positioning systems that improve the accuracy, robustness, and reliability of Theseus’ products across sensors, onboard compute, and drone platforms. You will: * Design and iterate on visual localization and positioning algorithms * Build tooling and data pipelines that accelerate model and algorithm development * Contribute to architecture decisions across the sensor fusion stack * Test, debug, and iterate on your work in real-world conditions **You should have the following** * Experience with SLAM, VIO, factor graphs, EKFs, state estimation or other relevant robotics skills through work or in depth personal projects * Strong track record of ownership: you’ve built real systems, deployed them, tested them in the real world, and can clearly explain the technical tradeoffs you made * Strong robotics fundamentals, including frames, poses, calibration, estimation, and uncertainty * Strong Python/C++ skills **Nice to have** * Experience taking research software to production on edge hardware * Experience deploying software onto robots, drones, or other real-world hardware systems

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