CareerPlan

Principal Mechanical Engineer

San FranciscoFull-time$235k–$305k2026-10-21 → 2026-10-22
On-siteNo visa sponsorship

Core

Lead system-level mechanical architecture for autonomous, field-deployed directed energy systems, integrating with electrical, power, embedded, and optics disciplines.

Role type

Principal Mechanical Engineer (System Architecture)

Builds

Autonomous directed energy hardware systems

Domain

Defense technology / Directed energy systems

Required skills

Mechanical design, System architecture, CAD, Engineering analysis, FEA, Ruggedized system design, Thermal management, Power electronics, Embedded systems, Manufacturing integration

Preferred skills

Lasers, High-power systems, Gimbals, Beam directors, Military qualification standards, Production line development

Responsibilities

Lead mechanical architecture across the system, Make technical decisions on challenging engineering problems, Guide hardware release and production processes, Identify technical risks early and review designs, Perform hands-on design and analysis, Balance cost, mass, reliability, schedule, and field performance, Share technical judgment and mentor engineers

Seniority

Principal, hands-on IC & mentorship