Senior Mechanisms Systems Engineer

As a Senior Mechanisms Systems Engineer, you will be the technical and programmatic owner for large, cross-discipline mechanism systems such as thrust vector control. Reporting directly to the Mechanisms team, you will lead system-level design and integration, guiding requirements, architecture, and verification across hardware and software interfaces. You will:

Define system concepts of operations (CONOPS), requirements, and verification plans

Lead integrated product activities across mechanical design, actuators, GNC, avionics, and software teams to ensure seamless system performance

Drive development tests, functional verification, and flight readiness by authoring test plans, executing tests, and establishing success criteria

Anticipate technical and logistical risks, develop mitigation strategies, and align priorities across engineering disciplines and schedules

Coordinate the design, manufacturing, integration, and test schedules for complex mechanism systems

Take hands-on ownership of emergent challenges—whether designing test fixtures, specifying sensors, writing test automation, or leading root-cause investigations

This role occasionally requires travel to test and launch sites and may involve shifted or weekend schedules to support critical milestones

About You:

Bachelor’s degree in Mechanical, Aerospace, or related engineering field and 5+ years of relevant experience in design, manufacturing, assembly, or test of complex mechanical or electromechanical systems

Proven ability to lead multi-disciplinary projects and deliver on ambitious schedules

Strong technical judgment and the ability to communicate complex concepts across engineering and leadership audiences

Demonstrated experience balancing requirements, cost, and schedule while driving system integration and verification

Nice to haves but not required:

Background in actuator systems, flight mechanisms, or thrust vector control

Experience with motor-control tuning and model-based design using MATLAB/Simulink

Experience with integrated hardware/software testing and verification

Familiarity with reusability and rapid-iteration development environments

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors. Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Please note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.