Propulsion Engineer (will consider all Sr. levels) (Mechanical Engineer)

Where dreams and reality collide and the output is, out of this world. At Redwire Space, we are a team of dreamers and doers. Where the impossible becomes possible, and every day is an opportunity to learn and get one step closer to knowing the unknown. Join us on our mission to expand humanity's presence in space. Summary Redwire Space Missions LLC has an exciting opportunity for a Propulsion Engineer (will consider all senior levels), responsible for the definition, integration, and technical oversight of spacecraft propulsion subsystems supporting maneuvering, station‑keeping, and end‑of‑life disposal across Space Missions programs. This role serves as the Responsible Engineer for propulsion, ensuring the selected propulsion solution meets mission requirements and integrates effectively with spacecraft systems. You will lead propulsion architecture trades, definition of subsystem requirements, selection of propulsion suppliers, and support the technical integration of the propulsion subsystem into the spacecraft. This position is on‑site and based at one of the following locations: Littleton, CO, or Albuquerque, NM. Responsibilities Serve as the Responsible Engineer for spacecraft propulsion subsystems across one or more spacecraft programs. Define propulsion subsystem requirements including thrust capability, delta‑V budgets, propellant capacity, maneuver timelines, and mission lifetime margins. Perform system level trade studies, design optimization, and performance modeling to evaluate propulsion technologies and supplier solutions aligned to mission needs. Lead propulsion supplier evaluation, selection, and technical oversight throughout the program lifecycle. Develop subsystem specifications, interface control documents (ICDs), and verification plans for propulsion systems. Coordinate closely with Mission Analysis and GNC teams to ensure maneuver planning and propulsion capabilities are aligned. Ensure propulsion subsystem interfaces with spacecraft avionics, power systems, structures, thermal, and software components are properly defined and integrated. Develop propulsion test plans and support or execute hot‑fire, pressure, and environmental tests. Support propulsion subsystem integration, system‑level testing, and anomaly resolution during integration and test campaigns. Contribute to hazard analyses, fault management strategies, and safety of operations processes. Participate in subsystem and system‑level design reviews including SRR, PDR, CDR, and test readiness reviews. Support technical interactions with propulsion suppliers including design reviews, performance assessments, and acceptance testing. Contribute to propulsion operations planning including maneuver execution strategies and propellant margin management. Ideal Experience Bachelor's degree in Aerospace Engineering, Mechanical Engineering, or related field, with 6+ years of experience. Experience serving as Responsible Engineer or similar role with technical ownership of spacecraft propulsion system architecture, development, and analysis. Experience developing propulsion subsystem requirements, specifications, and interface definitions. Familiarity with electric and chemical propulsion systems, their differences, and trade‑offs. Experience performing V‑budget development and propellant sizing. U.S. Citizen with the ability to obtain a U.S. Government security clearance. Must be able to travel up to 20%. Desired Skills Master's or Ph.D. in aerospace or mechanical engineering. Experience integrating propulsion subsystems on spacecraft missions in numerous orbital regimes. Expert understanding of electric propulsion systems (e.g., Hall‑effect, ion), chemical propulsion systems (monopropellant, bipropellant), and dual‑mode propulsion solutions. Experience performing mission maneuver analysis, delta‑V budgeting, and propellant mass estimation. Experience with performance modeling (CEA‑equilibrium for chemical, EP thruster curve fits), duty cycles, life models, thermal/structural margins, and fault detection, isolation, and recovery (FDIR) strategies for autonomous operations. Experience using spacecraft industry modeling tools such as STK, GMAT, MATLAB, Python, Ansys Fluent, Monte Carlo mission simulations, or custom propulsion modeling environments. Experience supporting propulsion qualification and acceptance test campaigns. Familiarity with propulsion testing and aerospace safety practices. Experience coordinating propulsion subsystem development with spacecraft GNC and mission operations teams. Experience supporting propulsion supplier down‑select and procurement activities. Excellent analytical, problem‑solving, and technical communication skills. Active U.S. Government Secret Clearance. Benefits Grow with us as we innovate the next generation capabilities for a new era of space exploration! We offer a highly competitive benefits package along with a commitment to our core values of Integrity, Innovation, Impact, Inclusion, and Excellence. Don't meet every single requirement above? No worries. We want people who can grow, collaborate and build a stronger team. We strive to build a diverse and inclusive culture, so if you're excited about this job posting, we encourage you to apply. You may be just the right candidate for this or other roles. Compensation Philosophy Redwire determines pay for positions using local, national, and industry‑specific survey data for our locations in the US. We evaluate external equity and cost of labor/prevailing wage index relative to the marketplace for jobs directly comparable to ours. For new hires, we strive to make competitive offers allowing the employee room for future growth. Salaries are based on the applicant's level of experience, education, and specialized knowledge and skills. We also consider the external market rate, internal budgets, and internal equity for the same position. Candidates with stronger skill sets receive higher pay. Equal Employment Opportunity Statement Redwire is an Equal Opportunity Employer; employment with Redwire is governed on the basis of merit, competence, and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status. Eligibility All offers of employment at Redwire are contingent upon clear results of a thorough background check and your ability to provide proof of eligibility to work in the US. Some positions also require U.S. citizenship or the ability to obtain a security clearance due to classification program requirements. ITAR Compliance 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. Learn more about the ITAR Click Here #J-18808-Ljbffr Redwire Space