Fluid Mechanics

Impulse Space

Redondo Beach

You will design and analyze spacecraft propulsion fluid systems from the ground up, leading technical development for critical propulsion components. This role suits engineers with deep expertise in fluid mechanics and spacecraft systems who want to own complex hardware designs.

Listed on Impulse Space’s careers site · Apply there ↗

Boeing

Full-time · North Charleston, SC · $112,200 – $185,150

This role combines engineering analysis, systems integration, and hands-on support for Boeing's 787 aircraft propulsion and fuel systems, based at the Charleston facility. It suits mid-to-senior engineers with aerospace systems experience who want to own complex technical problems and lead supplier relationships while supporting production and delivery.

Listed on Boeing’s careers site · Apply there ↗

Arianespace / ArianeGroup

Full-time · Vernon

This role supports rocket engine testing operations for Ariane 6 and future launch vehicles at a specialized European test facility. It suits someone with a technical background in fluid systems or maintenance who is comfortable coordinating real-time operations and managing procedures in a demanding operational environment.

Listed on Arianespace / ArianeGroup’s careers site · Apply there ↗

Axiom Space

Full-time · Houston, TX

This role develops and delivers thermal control systems for commercial space stations, managing the complete lifecycle from design through on-orbit operation. It suits experienced thermal engineers with deep knowledge of heat transfer, fluid mechanics, and spacecraft environments who want to own critical hardware for a crewed orbital facility.

Listed on Axiom Space’s careers site · Apply there ↗

Relativity Space

Long Beach, CA · $104,000 – $156,000

This role involves designing and managing composite pressure vessels (COPVs) for a commercial rocket engine program, working across the full lifecycle from design through flight operations. It's suited to engineers with pressure vessel fundamentals who want deep ownership of critical hardware in a fast-paced aerospace environment.

Listed on Relativity Space’s careers site · Apply there ↗

Shield AI

Full-time · Dallas, TX · $250,000 – $370,000

Shield AI seeks an experienced fluid and thermal systems engineer to lead the design and optimization of cooling and propulsion systems for autonomous aircraft and ground robots used in defense operations. This role suits someone who combines deep technical expertise in thermal and fluid mechanics with the leadership skills to guide cross-functional teams through complex engineering challenges.

Listed on Shield AI’s careers site · Apply there ↗

Arianespace / ArianeGroup

Full-time · Vernon

This role involves designing and implementing fluid systems for rocket engine test facilities and assembly lines at ArianeGroup, serving as the technical lead from requirements analysis through delivery and lessons learned. It suits an experienced engineer with strong fluid mechanics expertise who can manage complex projects with both supplier coordination and client engagement.

Listed on Arianespace / ArianeGroup’s careers site · Apply there ↗

Relativity Space

Full-time · Cape Canaveral, FL · $124,000 – $170,500

This role involves designing and managing the propellant and fluid systems for a commercial rocket's launch pad and ground support infrastructure. You'll work on everything from system design and stress analysis through construction, activation, and operational support at Cape Canaveral—ideal for an engineer who wants hands-on responsibility for critical launch hardware.

Listed on Relativity Space’s careers site · Apply there ↗

Arianespace / ArianeGroup

Full-time · Vernon

This role involves designing and commissioning fluid systems for rocket engine test facilities and assembly lines at ArianeGroup's Vernon site. It suits engineers with fluid mechanics expertise who can manage technical projects from requirements analysis through delivery, working across supplier interfaces and internal teams in the aerospace sector.

Listed on Arianespace / ArianeGroup’s careers site · Apply there ↗

Relativity Space

Full-time · Long Beach, CA · $132,000 – $198,000

Lead a manufacturing test engineering team at a rocket company, designing test systems and procedures for complex pneumatic and electrical assemblies while managing engineers and technicians. This role suits experienced test engineers ready to move into leadership while staying hands-on with production challenges in a fast-growing aerospace manufacturer.

Listed on Relativity Space’s careers site · Apply there ↗