Senior Propulsion Engineer — Space Systems (Equity & PTO)

Gravitics; Florida; On-site; USD 135,000 - 160,000; Full time

Benefits offered by this job

Company equity

Medical benefits

401(k) retirement plan

Generous PTO policy

Job summary

Gravitics in Marysville, WA is seeking a propulsion systems engineer to own major fluid subsystems for an in-space propulsion platform. You will design, test, and integrate propulsion fluid components from concept through hardware validation.

The role emphasizes cross-disciplinary collaboration, rigorous documentation, and ownership of critical tests to ensure system-level performance and reliability.

Qualifications

• 5+ years of experience in mechanical or aerospace engineering.
• Bachelor’s degree in aerospace or mechanical engineering or related field.
• Working knowledge of propulsion or fluid system components.
• Familiar with CAD/FEA tools such as NX and NASTRAN.
• Ability to understand structural, fluid, and thermal designs from first principles.

Responsibilities

• Design, build, and test propulsion fluid systems, including feed systems, tank pressurization, propellant management, and related components.
• Take ownership of propulsion subsystem architecture elements from concept to hardware integration and test.
• Lead system-level trade studies evaluating performance, weight, power, and cost.
• Plan and execute propulsion integration and test campaigns for component, subsystem, and full vehicle tests.
• Generate and maintain engineering documentation: requirements, ICDs, test plans, and fluid schematics.
• Collaborate with structures, thermal, avionics, and GNC teams for vehicle-level compatibility.
• Support environmental qualification and acceptance testing (thermal-vacuum, vibration, leak testing).

Skills

Propulsion systems

CAD/FEA NX NASTRAN

First principles design

GD&T ASME Y14.5

Education

Bachelor’s degree in aerospace or mechanical engineering

Tools

NX

NASTRAN

MATLAB/Simulink

Job description

Gravitics in Marysville, WA is seeking a propulsion systems engineer to own major fluid subsystems for an in-space propulsion platform. You will design, test, and integrate propulsion fluid components from concept through hardware validation.

The role emphasizes cross-disciplinary collaboration, rigorous documentation, and ownership of critical tests to ensure system-level performance and reliability.