Nyx Crew Propulsion Engine Principal

Here at The Exploration Company, we are developing, producing, and operating Nyx, a modular and reusable space orbital vehicle that can eventually be refuelled in orbit and that can carry cargo - and potentially humans in the longer run. We are seeking an experienced and highly motivated Engine Principal to drive the development of next-generation high-thrust hypergolic propulsion systems for crewed spaceflight applications. This individual will be responsible for leading the engine development effort from early concept and architecture definition through qualification and flight readiness, ensuring the successful delivery of safe, reliable, and high-performance propulsion hardware. As a key technical leader within the organization, the Engine Principal will play a central role in shaping propulsion strategy, developing team capabilities, mitigating technical risks, and ensuring propulsion systems meet demanding performance, reliability, schedule, and cost objectives. Key Responsibilities Technical Leadership Lead the end-to-end development of high-thrust hypergolic rocket engines from concept through flight readiness. Lead preparation and execution of major program reviews (SRR, PDR, CDR, TRR, etc.), supporting certification activities and customer reviews. Ensure compliance with industry standards, human-rating requirements, and quality processes throughout the product lifecycle. Engine Architecture Establish engine architecture and drive key design decisions. Conduct trade studies, simulation, and analytical assessments to optimize engine performance, reliability, manufacturability, and cost. Own propulsion technical requirements and contribute to long-term propulsion technology strategy and innovation roadmaps. Program Execution Plan, coordinate, and oversee engine development activities to achieve technical, schedule, and budget objectives. Lead development and qualification, including verification, validation, certification, and flight-readiness activities. Identify and mitigate technical risks, resolve anomalies, and deliver qualified flight hardware aligned with program milestones. Team Leadership & Capability Development Build, lead, and develop a high-performing multidisciplinary propulsion team. Provide technical mentorship to engineers and technicians. Foster a culture of technical excellence, accountability, collaboration, and continuous improvement Stakeholder, Supplier & Cross-Functional Management Lead technical interactions with suppliers, development partners, and external stakeholders, including component selection, procurement, oversight, and acceptance activities. Collaborate closely with systems engineering, avionics, MAIT, and program teams to ensure successful propulsion system integration. Communicate technical status, risks, and recommendations while ensuring alignment between propulsion activities and broader vehicle development objectives. Qualifications B.S. in Aerospace, Mechanical Design, Engineering, Engineering Technology, or similar related discipline 10+ years of relevant engineering experience. Relevant advanced degrees will be considered in lieu of equivalent experience. Demonstrated experience designing, analyzing, integrating, and testing engines for space vehicles. Demonstrated experience in developing human rated systems. Working knowledge of throttleable high thrust hypergolic engines. Knowledge of environmental testing, such as vibration, shock, acoustic, and/or vacuum. Experience working with external customers such as commercial companies and government agencies (NASA, AFRL, DARPA, etc.) and component suppliers. Due to federal regulations (e.g., ITAR/EAR), applicants must be U.S. citizens or lawful permanent residents (e.g., current Green Card holders). Location: Houston, TX. Why you should join us! What makes us special here at The Exploration Company and why we think you will enjoy working here is: We’re Agile - we make decisions fast whilst keeping our goals and systems in mind We’re Open and Collaborative - we are transparent about risks and obstacles, so that we can cooperate to overcome them We have a lot of Fun - we refuel our energy knowing we are democratising space. It’s a wonderful and rare opportunity, are YOU up for the challenge? We'd love to hear from you if you wish to be a part of our journey. Please submit your CV now for immediate consideration and we will be in touch shortly. The Exploration Company is an equal opportunity employer and values diversity. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. Relocation assistance is provided for those willing to relocate including visa sponsorship where applicable. All offers are contingent upon the successful completion of a background check, which will be subject to the country, role, and project you applied for. By submitting your application, you acknowledge and agree that any offer of employment may be conditional upon successful condition of this check. The Exploration Company partners with Zinc Work Limited located in the UK (Zinc), a third-party provider, to ensure this process as efficient and transparent as possible. If applicable, you will receive an email from Zinc upon acceptance of your offer with a link to a secure portal where you can provide the required information to Zinc.