# Propulsion Engineer II (Spacecraft Engine Team) 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: 2026-10-22
- Apply by: 2026-12-06
- Apply: https://fireflyspace.wd115.myworkdayjobs.com/en-US/Firefly/job/Cedar-Park-TX/Propulsion-Engineer-II--Spacecraft-Engine-Team-_JR100217-1?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/firefly-aerospace-propulsion-engineer-ii-spacecraft-engine-team-2/

## About the role

The position of Propulsion Engineer II within the Spectre Engine team at Firefly involves leveraging creativity, ingenuity, and experience to develop hypergol engines for our Blue Ghost program. Engineers tackle complex challenges throughout the project life cycle, from design and analysis to manufacturing, testing, and operational support. Collaborating closely with other product groups, such as structures, fluid systems, and avionics, Propulsion Engineers take ownership of projects and make critical decisions. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Serve as Responsible Engineer for in-space propulsion hardware including main and attitude control engines, valves, and propellant tanks
- Develop new and innovative design concepts for propulsion integration and operations that reduce complexity and maximize reliability within budget
- Assist in the development of manufacturing, integration, and test processes, including work instructions, test procedures, development testing, and initial build support
- Act as the primary point of contact for design, analysis, and operations of spacecraft fluid systems
- Perform flight operations as a primary operator for fluids and propulsion systems
- Own and execute development, qualification, and acceptance testing of flight hardware


Source: 1752vc Careers, https://www.1752.vc/careers/jobs/firefly-aerospace-propulsion-engineer-ii-spacecraft-engine-team-2/