Senior Propulsion Engineer

We Love AI Jobs; Northern (KY); Hybrid; USD 130,000 - 160,000; Full time

Job summary

Voyager Technologies in Mojave, CA is seeking a Senior Propulsion Engineer to design, analyze, and test cryogenic rocket propulsion systems for sub-orbital VTVL vehicles. You will size components, build fluid-thermal models, and perform trade studies in collaboration with the Pittsburgh and Mojave teams, reporting to the Propulsion Lead.

Requirements include a BS in Mechanical or Aerospace Engineering and 6+ years in rocket propulsion.

Qualifications

• BS in Mechanical or Aerospace Engineering required; MS preferred
• Experience with cryogenic propellants (LOX/LCH4) and high-pressure systems
• Ability to develop conceptual designs, perform trade studies, and down select to a baseline design

Responsibilities

• Design, analyze, and test cryogenic rocket propulsion systems and components
• Build fluid-thermal models and conduct trade studies to guide design decisions
• Develop test plans, execute tests, and post-process results for propulsion components
• Lead creation of hardware drawings to support manufacturing
• Create component specifications for vendor interactions and procurement
• Develop test plans and participate in safety reviews for testing activities
• Perform risk assessment and mitigation planning
• Write and present technical reports

Skills

Cryogenic propulsion systems

Cryogenic propellants

Fluid-thermal modeling

Combustion device design

High-pressure fluid systems

Education

Bachelor's Degree in Mechanical or Aerospace Engineering

Tools

ANSYS Fluent

GFSSP

SolidWorks

Job description

# Senior Propulsion EngineerPittsburgh Robotics NetworkMojave, CAFull-time$130,000 – $160,000 / yearUpload your resume once and Scout applies for youApply with ScoutShare this job:LinkedInXSave imageThis engineer develops cryogenic propulsion systems for Voyager's sub-orbital VTVL vehicles, covering component sizing, design, analysis, fabrication, and testing. The role works with a propulsion team across Mojave and Pittsburgh and includes hands-on test and hardware responsibilities.* Permanent* On-site* 6+ years* Bachelor's Degree### Skills and expertiseRocket propulsion systemsCryogenic propellantsFluid-thermal modelingCombustion device designHigh-pressure fluid systemsANSYS FluentGFSSPSolidWorks### Key responsibilities* Design, analyze, and test cryogenic rocket propulsion systems and their components.* Build fluid-thermal models and conduct trade studies to guide design decisions.* Develop test plans, execute tests, and analyze component and system results.## How this job comparesCompared with 1,635 open senior engineering jobs on October 10, 2026.Pay: This job pays $130K to $160K a year. The 719 open senior engineering jobs that publish US pay start at $164K on average, so this job starts about 21% lower.Similar open jobs: We Love AI Jobs lists 1,635 open senior engineering jobs at 344 companies.Remote work: This job is on site. 271 of the 1,635 senior engineering jobs (17%) are remote.AI in this role: Low. The company works with AI, but AI is a small part of this role's daily work. The work centers on rocket propulsion engineering, hardware design, modeling, and testing. No AI models, tools, or products are mentioned.## Full descriptionVoyager is an innovative space, defense, and national security technology company committed to advancing and delivering transformative, mission-critical solutions. We tackle the most complex challenges to unlock new frontiers for human progress, fortify national security, and protect critical assets to lead in the race for technological and operational superiority from ground to space.Forge the Future: Join Voyager TechnologiesThe future belongs to those who build it. At Voyager Technologies, we’re building technologies that protect lives, expand frontiers and prepare us for what’s next. And we’re doing that with people who are wired to solve, build, adapt and lead. These roles are not for the faint of heart.You’ll help lay the foundation for humanity's future. Join a culture where innovation thrives, curiosity is rewarded, and impact is real. We’re a company of doers, thinkers and builders, united by purpose and grounded in reality.If you want to put your skills to work where the stakes are real and the mission is bigger than any one person, forge the future with Voyager.Job SummaryVoyager wants you to be a critical contributor in the Mojave, CA office to advance the development of propulsion systems for Voyager’s sub-orbital VTVL vehicles. You will be responsible for working directly on all aspects of the propulsion systems, from initial component and system sizing through design, analysis, fabrication, and test. You will regularly report to the Propulsion Lead on progress, as part of a joint propulsion team collaborating with the Pittsburgh, PA office.Job Responsibilities:• Support the engineering team in the design and test of rocket propulsion systems using cryogenic propellants• Size components of propulsion systems including combustion devices, valves, propellant feed lines, turbomachinery, tanks, and pressurization systems• Design and analyze combustion device elements including injectors, combustion chambers, nozzles, gas generators, cooling channels, and related technology• Build and run propulsion system fluid-thermal models to predict component and system behavior• Perform trade studies to guide design and operational decisions• Lead the creation of hardware drawings to support manufacturing• Create component specifications to guide vendor interactions and support procurement• Develop test plans, execute tests, and post-process results for component and system testing• Contribute to and participate in technical readiness and safety reviews for testing activities• Perform risk assessment and mitigation planning• Write and present technical reportsRequired Skills & Qualifications:• B.S. in Mechanical or Aerospace Engineering• 6+ years of relevant experience in rocket propulsion system development• Experience with cryogenic propellants (liquid methane and liquid oxygen preferred)• Experience in designing and analyzing high-pressure fluid and/or pneumatic systems• Proven capability to develop conceptual designs, perform trade studies, and down select to a design baselineDesired Skills & Qualifications:• M.S. in Mechanical or Aerospace Engineering• Experience with a variety of cryogenic propulsion systems and various engine cycles• Experience with Computational Fluid Dynamics (ANSYS Fluent or CFX preferred)• Experience leveraging additive manufacturing in engine design• Proficient in fluid/thermal software for rocket engine development (GFSSP, RTE, RPA) and for system level modeling (Amesim or Thermal Desktop)• Familiar with CAD (SolidWorks preferred) and lifecycle management tools• Ability to take ownership of and prioritize tasks in a fast-paced environment with changing needs and requirements• Experience with advanced rocket engine designs and concepts, especially RDRE’s