CareerPlan

Principal Mechanical Engineer

San FranciscoFull-time$235k2026-11-12 → 2026-11-13
On-site · United StatesNo visa sponsorship

Core

Senior mechanical engineering leadership for autonomous, field-deployed directed energy systems, guiding hardware from architecture through production readiness and field use.

Role type

Principal Mechanical Engineer (Senior IC)

Builds

Autonomous directed energy systems for field deployment

Domain

Defense technology / Directed energy / Hardware systems

Required skills

Mechanical architecture, full-system integration, CAD, structures, mechanisms, packaging, ruggedized hardware design, FEA, manufacturing scale-up, thermal management, military-grade qualification

Preferred skills

Electrical/power electronics/embedded systems judgment, beam-directing mechanisms, high-power thermal management

Technologies

CAD, FEA

Responsibilities

Own mechanical architecture and lead integration with electrical, power, embedded, and optics disciplines; Make technical decisions on complex hardware problems from concept through production readiness; Guide hardware release and production processes in partnership with manufacturing; Review designs, analysis, and documentation to identify risks early and maintain strong engineering standards; Perform hands-on engineering work to resolve challenging problems; Make design and manufacturing tradeoffs across cost, mass, reliability, schedule, and field performance; Share technical expertise through hands-on mentorship and design collaboration

Seniority

Principal, hands-on IC with mentorship