Lead Propulsion Engineer

Voyager 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 Technologies

The 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.

Lead Propulsion Engineer

This is a critical leadership position tasked to direct and grow the propulsion team that is driving the development of Voyager’s portfolio of cryogenic propulsion technologies. This position requires team leadership abilities based in significant propulsion system design, analysis, and testing experience. Comprehensive experience with the development of bi-propellant cryogenic propulsion systems is required.

This position is part of the Voyager propulsion team located in Mojave, CA.

Job Responsibilities:

Lead the propulsion team in the development of new rocket propulsion systems

Provide technical direction to propulsion engineers across all elements of the work scope including design, analysis, integration, test, and operations

Assure that technical work of the propulsion team aligns with company and team best practices and processes across all projects

Offer regular and consistent mentoring to propulsion engineers regarding performance, career development, work-life balance, and other individual priorities

Work with the chief engineering office to align strategic technical plans with business development goals, and support proposal creation

Create work scopes, labor and material cost estimates, and risk assessments to support project management

Coordinate with lead engineers of other subsystems to jointly execute to meet project goals

Maintain overarching responsibility for all aspects of the integrated main engine systems, with incorporation into the flight vehicle architectures

Design and analyze cryogenic propulsion systems including combustion devices, valves, propellant feed lines, tanks, turbomachinery, and pressurization systems

Design and analyze combustion device elements including injectors, combustion chambers, nozzles, gas generators, cooling channels, and related technology

Create and review propulsion system fluid-thermal models to guide design and operational decisions

Lead the creation and review of hardware drawings to support manufacturing

Create and review component specifications to guide vendor interactions and support procurement

Develop and review instructions to direct the manufacturing, assembly, and integration of propulsion systems and components

Develop and review test plans, lead technical readiness and safety reviews, and execute tests for component and integrated system testing.

Required Skills & Qualifications:

B.S. in Aerospace, Mechanical, or similar engineering degree

Hold 10+ years of relevant experience in rocket propulsion system development, with 5+ years in cryogenic systems (Methane and LOX preferred)

Demonstrated ability to coordinate a technical team of 3 or more engineers in a multi-year project, driving propulsion system development and test

Demonstrated decision making with informed risk to properly balance quality, cost, and schedule across a project that includes non-propulsion subsystems

Successful experience in a role requiring people leadership skills

Experience in propulsion system design, analysis, manufacture, integration, and test

Ability to take ownership of and prioritize tasks for a team supporting multiple projects

Effective verbal and written communication, including reports and technical presentations

Prefered Skills & Qualifications:

Knowledge of propulsion system cycles and performing system-level engine modeling

Proficient in fluid/thermal software for rocket engine development (e.g. GFSSP, ROCETS, RTE, RPA) and for system level modeling (Amesim or Thermal Desktop)

Experience with CAD (SolidWorks preferred) and lifecycle management tools

Experience with Computational Fluid Dynamics (ANSYS Fluent or CFX preferred)

Experience leveraging additive manufacturing in engine design

Analytical/scientific programming (Python, C/C++, Matlab)

Experience with advanced rocket engine designs and concepts, especially RDRE’s

Experience with rocket turbopumps

Experience in pressure vessel design, fabrication, requirements, and/or qualification testing

Voyager offers a highly competitive total compensation package designed to support the well-being, growth, and success of our employees. Employees benefit from a flexible and comprehensive rewards program that supports both professional and personal well-being.

Flexible Time Off (FTO), empowering employees to take the time they need to recharge and maintain a healthy work-life balance

Comprehensive medical, dental, and vision coverage for employees and their families, with a significant portion of premiums covered by the company and many benefits paid at 100% for employees

Flexible, affordable gym memberships with 12,700+ options nationwide, including 24 Hour Fitness, EoS Fitness, Crunch Fitness, Anytime Fitness, Blink Fitness, Chuze Fitness, and more! No long-term contracts and FREE on-demand workout videos before you enroll

401(k) retirement plan with a 50% company match on contributions up to 8%, supporting long-term financial security

Company wellness programs that support physical and mental well-being

Additional voluntary benefits and employee support resources

The opportunity to work alongside a highly talented team in an innovative, mission-driven environment

Voyager is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status, or other characteristics protected by law.

To conform to U.S. Government export regulations, including the International Traffic in Arms Regulations (ITAR) (22 CFR Parts 120–130) and the Export Administration Regulations (EAR) (15 CFR Parts 730–774), applicants for this position must be a U.S. Person: a US Citizen, a lawful permanent resident of the U.S., or a protected individual as defined by 8 U.S.C. § 1324b(a)(3). Applicants must be eligible to obtain any required export authorizations from the U.S. Department of State or the U.S. Department of Commerce.

Minority/Female/Disabled/Veteran

The statements contained in this job description are intended to describe the general content and requirements for performance of this job. It is not intended to be an exhaustive list of all job duties, responsibilities, and requirements. This job description is not an employment agreement or contract. Management has the exclusive right to alter the scope of work within the framework of this job description at any time without prior notice.

California pay range

$160,000 — $240,000 USD