Senior Software Engineer ($160K - $220K + Equity) at Theseus

Job Title Senior Software Engineer Salary $160K - $220K + Equity Company Description Theseus - YC S24 drone autonomy startup Job Description You will build the critical operator-facing software layer for visual positioning systems that allow drones to navigate without GPS. Working across React, TypeScript, and Python, you will develop mission planning tools and data workflows used in contested environments. This role bridges the gap between advanced autonomy and real-world operational mission execution. Location San Francisco, USA Why this role is remarkable Work on mission‑critical technology already deployed by the DoD, SOCOM, and NATO to solve GPS‑jamming challenges in global conflict zones. Join a high‑velocity YC S24 team that raised $4.3M from First Round Capital and moved from hackathon to military exercises in under a year. Exceptional autonomy in a lean 6‑person team where your code directly impacts autonomous aircraft performance in the most demanding environments on Earth. What you will do Design and ship production‑grade frontend applications and backend services for mission planning, map generation, and real‑time telemetry analysis. Build and maintain robust internal APIs that interface between edge‑deployed autonomous systems and cloud‑based operational infrastructure. Partner directly with field and autonomy teams to translate ambiguous operator needs into reliable, user‑facing product features for the Vozilla platform. The ideal candidate 3‑6 years of experience shipping production software at high‑caliber startups or engineering organizations with a focus on reliability. Full‑stack proficiency in TypeScript, React, and Python, with a strong background in designing data‑intensive applications and database schemas. A pragmatic builder who thrives in high‑stakes environments; experience in robotics, defense, or geospatial systems is a significant advantage. #J-18808-Ljbffr Jack & Jill/External ATS