Propulsion Engineer

Axiom Space•Houston, TX

About The Position

Axiom Space is guided by the vision to build era-defining space infrastructure that drives exploration and fuels a vibrant space economy for the benefit of every human everywhere. Axiom Space is the leading provider of human spaceflight services and developer of human-rated space Axiom Extravehicular Mobility Unit. Axiom Space operates end-to-end missions to the International Space Station today while developing its successor, Axiom Station – a permanent commercial destination in low-Earth orbit that will sustain human growth off the planet and bring untold benefits back home. Axiom Space fosters a work environment inclusive of all perspectives. We are the pioneers of commercial space, leading the transformation of low-Earth orbit into a global space marketplace. Our mission-driven team is seeking a bold and dynamic Propulsion Engineer who is fueled by high accountability, execution horsepower, and driven to understand our world, science/technology, and life itself, for the benefit of all on Earth and beyond. We are looking for an experienced Propulsion Engineer to lead the design, analysis, and integration of spacecraft propulsion systems. This role involves defining requirements, coordinating with vendors, supporting system modeling, and driving verification through testing. The ideal candidate has a strong background in fluid dynamics, thermodynamics, propulsion components, and system-level integration, with experience in both development and flight certification.

Requirements

Bachelor’s degree from an accredited college or university in engineering or related field, over 4+ years of experience, or an equivalent combination of education and experience.
Strong problem-solving abilities and a proactive approach to address project challenges.
Demonstrated time management and organization skills to meet tight deadlines and quality objectives.
Highly desire experience in spacecraft propulsion system design, analysis principles, tools, and processes.
3D modeling software knowledge, such as SolidWorks is preferred.
Analysis software knowledge, such as ANSYS, Easy5, Fluent, GFSSP, TDK preferred.
Proficiency in programming languages like Python or MATLAB is preferred.
Passion for space and the mission
Entrepreneurial, growth mindset
High EQ and ability to collaborate within teams and cross-functionally
Tech-solutioning in using systems and tools to move smarter and faster
Embody our core values of leadership, innovation, and teamwork.
In addition, to perform the job successfully, an individual should demonstrate the following competencies: Accountability Technical Rigor Execution Discipline Pride of Delivery
Must be able to complete a U.S. government background investigation.
Proof of U.S. Citizenship or US Permanent Residency is a requirement for this position.
Must be willing to work evenings and weekends as needed to meet critical project milestones.

Responsibilities

Lead and support the design, development and maturation of propulsion systems, including engines, regulators, valves, tanks, pressurization systems, etc.
Utilize modeling and simulation tools to evaluate system performance, fluid dynamics, thermal effects, and transient behaviors.
Perform detailed sizing and selection of propulsion system components, ensuring compatibility with performance, thermal, and structural constraints.
Evaluate and select materials with compatibility in oxygen environments, ensuring resistance to ignition, combustion, and degradation under operational conditions.
Drive and support propulsion system and fluid component testing to anchor analytical models, validate simulations, and refine system performance predictions.
Define, coordinate and control the functional and physical interfaces between the propulsion system and the vehicle.
Define, plan, and execute system and component-level tests, including development, qualification, and acceptance tests.
Coordinate and manage technical requirements, design verification activities, and schedules with external vendors.
Lead and participate in internal and external design reviews, ensuring compliance with system requirements and project milestones.
Collaborate with avionics, structures, thermal, and manufacturing teams to ensure successful integration of propulsion fluid systems.
Communicating project progress, status, and potential issues to stakeholders and leadership.
Implementing and maintaining agile project management methodologies throughout the project lifecycle.
Perform additional job duties as assigned.