Archimedes Propulsion Lead — Senior/Principal Engineer

Rocket Lab; Picayune (MS); On-site; USD 120,000 - 190,000; Full time

Job summary

Rocket Lab is seeking a Senior/Principal Propulsion Engineer for the Neutron program in the United States. You will own subsystems and engine operation, driving design, testing, and readiness across Archimedes engines and related systems.

You will execute campaigns, analyze data, refine designs for reliability, and align teams to program goals. Senior/Principal levels offer escalating responsibilities and cross-functional impact.

Qualifications

• Bachelor’s degree in mechanical or aerospace engineering.
• Experience ranges: 5+ years for Senior Propulsion Engineer I, 8+ for II, 12+ for Principal.
• Strong knowledge of fluid dynamics, thermodynamics, cryogenic systems, and rocket engine architecture.

Responsibilities

• Design, analyze, test, fly, and refly propulsion hardware to ensure readiness and flight success.
• Develop and execute test plans, including qualification and acceptance testing.
• Collaborate across engineering disciplines to optimize engine performance and manufacturability.
• Generate high-level plans and prioritize tasks across teams.
• Mentor and guide engineers to foster technical growth.
• Support engine needs with manufacturing, testing and vehicle operation teams.

Skills

Fluid dynamics

Thermodynamics

Cryogenic systems

Rocket engine architecture

Data analysis

Education

Bachelor’s degree in mechanical or aerospace engineering

Tools

engine P&IDs

fluid system routing

hotfire data reviews

Job description

Rocket Lab is seeking a Senior/Principal Propulsion Engineer for the Neutron program in the United States. You will own subsystems and engine operation, driving design, testing, and readiness across Archimedes engines and related systems.

You will execute campaigns, analyze data, refine designs for reliability, and align teams to program goals. Senior/Principal levels offer escalating responsibilities and cross-functional impact.