Senior Propulsion Engineer, Design (Combustion Devices)

OUR MISSION True Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors — enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground. OUR VALUES Be the offset. We create asymmetric advantages with creativity and ingenuity. What would it take? We challenge assumptions to deliver ambitious results. It’s the people. Our team is our competitive advantage and we are better together. BENEFITS & PERKS Best-in-class healthcare: 100% company-paid medical, dental, and vision coverage for you and your dependents, with HSA/HRA options Generous time off: Flexible Time Off (FTO) for exempt employees, accrued PTO of up to 25 days for non-exempt employees, plus 12 paid holidays; Parental Leave; Sick Leave Fuel for your day: Daily catered lunch and unlimited snacks for in-office employees And more: 401(k) retirement plan, fitness reimbursement, and Dog Fridays Equity participation: Equity is included as part of our total compensation package, giving you an opportunity to share in the company’s success. Do not apply to fixed term and temporary roles YOUR MISSION As a Senior Combustion Devices Design Engineer at True Anomaly, you will own the full lifecycle of combustion device development — from architecture trades through flight delivery. You will serve as the team's subject matter expert on injectors, regeneratively cooled thrust chambers, acoustic stability, and high-temperature materials, bringing hands-on mastery of design tools and modern manufacturing methods including additive manufacturing. This is your opportunity to design and develop the next generation of in-space propulsion systems and directly shape the future of on-orbit capabilities. RESPONSIBILITIES Lead combustion device design: Own the design, analysis, and optimization of combustion chambers, injectors, regen cooling circuits, nozzles, and flow systems for advanced satellite and space vehicle thrusters — from concept through flight qualification. Apply regenerative cooling expertise: Develop and validate regenerative cooling designs for thrust chambers, supporting and/or performing thermal and structural analysis to ensure margin and reliability across the full operating envelope. Drive combustion performance and stability: Use CEA and other combustion analysis tools to predict performance and guide design decisions. Apply knowledge of combustion instability mechanisms to design and validate acoustic cavities and other passive suppression features. Leverage additive manufacturing: Champion the use of AM processes — including designs in Inconel and other high-temperature superalloys — to accelerate development cycles, reduce part count, and enable geometries not achievable through conventional manufacturing. Collaborate with suppliers and partners: Work closely with engine and thruster suppliers to interpret hot-fire and cold-flow test data and translate findings into future design improvements. Lead robust trade studies: Define thruster and engine architecture, select components, and support build campaigns from initial design through integration and test. Build team capability: Mentor junior engineers, develop best practices, analysis tools, checklists, and design release templates that scale with the team. Review and release hardware: Review CAD models and engineering drawings to GD&T standards, providing direct technical feedback and design guidance. Contribute to continuous improvement: Drive initiatives that enhance design efficiency, manufacturability, and system-level performance. QUALIFICATIONS Bachelor's degree in Mechanical or Aerospace Engineering. 8+ years of professional experience in liquid rocket engine or thruster development. Hands-on combustion device design: Demonstrated experience designing injectors, combustion chambers, regen nozzles, valves, and nozzle extensions. Regenerative cooling design: Practical experience sizing and validating regen cooling circuits for thrust chambers, including thermal margin and pressure drop analysis. CEA proficiency: Demonstrated experience running NASA CEA (or equivalent) to predict propellant performance, O/F sensitivity, and nozzle expansion trade studies. Combustion instability expertise: Familiarity with acoustic combustion instability modes and experience designing acoustic cavities or other suppression features. High-temperature alloys: Experience designing and specifying hardware in Inconel, Haynes, or other high-temperature superalloys for propulsion applications. Additive manufacturing: Experience leveraging AM (SLM, DMLS, or equivalent) in the design and development of propulsion hardware. CAD proficiency with engineering drawing generation to GD&T standards. Operational experience in aerospace build, integration, and test environments. Demonstrated ability to lead multidisciplinary engineering teams in a fast-paced environment. Excellent written and verbal communication skills. U.S. Citizen, eligible for DoD Secret or TS/SCI clearance. PREFERRED SKILLS AND EXPERIENCE Master's degree in Mechanical or Aerospace Engineering (advanced degrees count toward years of experience). Experience designing, building, testing, and qualifying thruster or engine components through hot-fire, cold-flow, and leak/checkout campaigns. Direct team leadership and mentorship of junior propulsion engineers. Familiarity with the full vehicle lifecycle from concept through production. Track record of innovative problem-solving in complex mechanical and thermodynamic design challenges. Experience in a startup or similarly resource-constrained, high-tempo environment. COMPENSATION Base Salary: $165,000 to $245,000 Equity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, location, and experience. ADDITIONAL REQUIREMENTS Work Location —Successful candidates will be located near Denver or Long Beach. While we observe a hybrid work environment, some work must be done on site. Remote -For exceptionally qualified candidates who live outside a reasonable commuting distance of our Centennial or Long Beach offices, remote work within the U.S. may be considered on a case-by-case basis, subject to business needs and approval. Remote eligibility is not guaranteed and will be confirmed at the offer stage. Remote employees are expected to travel to a primary office about once a month. Any remote work must be performed from an approved location within the U.S. meeting the Company's security requirements Work environment —the work environment; temperature, noise level, inside or outside, or other factors that will affect the person's working conditions while performing the job. Physical demands —the physical demands of the job, including bending, sitting, lifting and driving. This position will be open until it is successfully filled. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. True Anomaly is committed to equal employment opportunity on any basis protected by applicable state and federal laws. If you have a disability or additional need that requires accommodation, please do not hesitate to let us know. To protect candidates and our company from application fraud and impersonation, we use third-party tools to verify applicant identity and detect fraudulent applications. Learn more in our Privacy Notice . #J-18808-Ljbffr