Senior Propulsion Systems Engineer – Fluid Systems Lead

Gravitics Inc; Seattle (WA); On-site; USD 135,000 - 160,000; Full time

Benefits offered by this job

Equity

401(k) plan

Medical insurance

Generous PTO

Employee discounts

Job summary

Gravitics Inc in Seattle, WA is seeking an experienced propulsion systems engineer to own the design, build, and test of fluid propulsion subsystems for in-space propulsion systems. You will lead system-level trade studies, manage interfaces, and drive hardware integration from concept definition to testing.

The role requires 5+ years in mechanical or aerospace engineering, a bachelor’s in aerospace or mechanical engineering, and hands-on experience with propulsion, propellant management, and

Qualifications

• 5+ years of experience in mechanical or aerospace engineering.
• Bachelor’s degree in aerospace or mechanical engineering.
• Working knowledge of propulsion or fluid system components.
• Exposure to propulsion design, propellant management, or fluid handling.
• Familiarity with CAD/FEA tools such as NX and NASTRAN.
• Ability to derive designs from first principles and work cross-functionally.
• Experience in design-through-test of propulsion systems.

Responsibilities

• Design, build, and test propulsion fluid systems including feed systems and tank pressurization.
• Own propulsion subsystem architecture from concept to hardware integration and test.
• Lead system-level trade studies to evaluate performance, weight, power, and cost.
• Plan and execute propulsion integration and test campaigns at component, subsystem, and vehicle levels.
• Generate and maintain requirements, ICDs, test plans, and fluid schematics.
• Collaborate with structures, thermal, avionics, and GNC teams for compatibility.
• Support environmental qualification and acceptance testing (TVAC, vibration, leak tests).

Skills

5+ years experience

Propulsion system design

Fluid systems

CAD/FEA (NX, NASTRAN)

Propellant management

System integration testing

Trade studies

First principles design

Education

Bachelor's degree in aerospace or mechanical engineering

Tools

NX

NASTRAN

Job description

Gravitics Inc in Seattle, WA is seeking an experienced propulsion systems engineer to own the design, build, and test of fluid propulsion subsystems for in-space propulsion systems. You will lead system-level trade studies, manage interfaces, and drive hardware integration from concept definition to testing.

The role requires 5+ years in mechanical or aerospace engineering, a bachelor’s in aerospace or mechanical engineering, and hands-on experience with propulsion, propellant management, and