# Mechanical Engineer II at Firefly Aerospace

- Company: Firefly Aerospace
- What the company does: Firefly Aerospace engages in providing economical and convenient access to space for small payloads through the design, manufacture, and operation of reliable launch vehicles. Backed by Space Capital.
- Company website: https://fireflyspace.com
- Type: Startups
- Level: Mid level
- Location: Cedar Park, TX
- Work setup: On-site
- Posted: 2026-10-21
- Apply by: 2026-12-05
- Apply: https://fireflyspace.wd115.myworkdayjobs.com/en-US/Firefly/job/Cedar-Park-TX/Mechanical-Engineer-II_JR100238?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/firefly-aerospace-mechanical-engineer-ii/

## About the role

Firefly Avionics Mechanical Engineers will leverage their creative design and experience to develop electronics enclosures, mechanical components, integration hardware, tooling, and test fixtures for launch vehicles. Qualified candidates will be responsible for design, analysis, hands-on build/integration, and support of environmental testing. You will be part of the avionics team and will work closely and collaborate with all other teams across the company. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Design ruggedized electronics packaging and structural components for PCB assemblies used for launch vehicle and spacecraft applications
- Design electro-mechanical assemblies for thermal and dynamic environments, EMI/EMC compatibility, and radiation resistance
- Perform thermal analyses (steady state thermal and thermal cycling) of electronics in aerospace environments
- Perform modal and vibration analyses of electronic assemblies with mechanical/structural components
- In addition to electronics packaging, candidate will be responsible for design of test fixturing and ground support hardware for launch vehicle and spacecraft electronics
- Support vibration, shock, and thermal test campaigns of products designed


Source: 1752vc Careers, https://www.1752.vc/careers/jobs/firefly-aerospace-mechanical-engineer-ii/