CareerPlan

Spacecraft Thermal Engineer (Mid to Senior Career) - Millennium Space Systems

USA - El Segundo, CAFull-time$102k–$150k2026-10-27 → 2026-11-10
On-siteNo visa sponsorshipCitizens onlySecurity clearance required

Core

Design, analyze, and test spacecraft thermal systems to maintain component and subsystem environments within operating and survival limits for national security satellites.

Role type

Mid-to-Senior Spacecraft Thermal Engineer

Builds

Spacecraft thermal system configurations, designs, analyses, and flight operations for small satellites

Domain

Aerospace / National Security Space

Required skills

Thermal system design, thermal modeling, thermal analysis tools (Thermal Desktop, SINDA/FLUINT, ANSYS, Thermica), test design and data reduction, proposal support

Preferred skills

Active TS/SCI Security Clearance, MLI blanket design experience

Technologies

Thermal Desktop, SINDA/FLUINT, ANSYS, Thermica

Responsibilities

Perform spacecraft thermal design and analyses at board, component, subsystem, and system levels; Develop thermal models to predict loads and temperature margins; Brief design materials to program managers and customers; Identify materials and processes for qualified thermal design; Support thermal verification testing including test conduct and reporting; Assist in proposal and new business development; Cross-train with MLI team for hands-on support

Seniority

Mid to Senior Career