R&D Mechanical Engineer - Fluid Systems (Spaceflight)

IRPI is pioneering the hardware that sustains life and enables exploration beyond Earth. We bridge the gap between theoretical research and flight-ready hardware, developing systems for CO₂ removal, air revitalization, hydroponics, waste management, and fire safety.

We are looking for an engineer who possesses both high analytical horsepower and the grit to build what they design. This is not a role for engineers who prefer to stay behind a CAD screen. You will unite first-principles physics (thermodynamics, fluids, heat transfer) with mechanical design and fabrication to solve complex, multidisciplinary problems for NASA and commercial space partners.

Why this Role?

• High-Complexity Problems: You won't just be detailing parts. You will also be deriving physics-based models for systems where standard correlations often fail or are too complex. Solutions will require interdisciplinary understanding of physics, materials, chemistry, and biosciences.
• Full Lifecycle Ownership: You will own your hardware from whiteboarding and mathematical modeling to machining, assembly, and rigorous lab validation.
• Meritocratic Impact: We value technical truth over hierarchy. You will work directly on flight hardware that expands the boundaries of human presence in space.

This position requires access to export-controlled technology. Only U.S. citizens or nationals are eligible. Applications will be accepted on an ongoing basis until the requisition is closed.

Key Responsibilities

• First-Principles Engineering: Perform rigorous analysis and trade studies for mechanical, thermal, and fluid systems. You must be able to justify design decisions using fundamental physics, not just "rule of thumb."
• Design for Spaceflight: Create novel SolidWorks parts, assemblies, and detailed drawings that survive launch loads and operate reliably in extreme environments.
• Rapid Prototyping: Operate additive manufacturing equipment and shop tools to fabricate prototypes. If you design it, you should be able to build it.
• Experimental Validation: Design and assemble complex test rigs. Instrument hardware, write test procedures, and execute data collection for fluid-thermal systems.
• Data-Driven Conclusion: Process experimental data using Python or MATLAB to generate clear engineering conclusions. You must be able to troubleshoot anomalies and determine root causes.
• Cross-Disciplinary Collaboration: Work at the intersection of biology, chemistry, and engineering, collaborating with NASA partners to integrate your hardware into larger life-support ecosystems.

Minimum Qualifications

• M.S./Ph.D. in Mechanical Engineering or related field OR B.S. with a distinguished portfolio of built hardware (Formula SAE, Baja, Rocketry, or complex personal projects) and mastery of first-principles analysis.
• Deep Fundamental Knowledge: Demonstrated proficiency of fluid mechanics, heat transfer, and thermodynamics. You will be assessed on your ability to apply these principles to novel scenarios.
• Design & Build Aptitude: Proficiency in 3D CAD (SolidWorks preferred) combined with a track record of building physical hardware (Formula SAE, research test rigs, complex hobbyist projects, etc.).
• Technical Communication: The ability to distill complex technical data into clear, concise written reports and presentations.
• U.S. Citizenship: This position requires access to export-controlled technology.

Preferred Qualifications

• Experience with FEA/CFD and data-analysis scripting (MATLAB/Python).
• A portfolio or thesis demonstrating a deep dive into a technical problem.
• Familiarity with additive manufacturing and traditional machining processes
• Exposure to aerospace qualification standards (NASA-STD-5001, MIL-STD-1540, or similar)

Compensation & Perks

• Salary: $95,000 – $135,000, based on experience and degree
• Health & Wellness: Comprehensive medical and dental insurance for employees and families
• Retirement: Employer contributions to help you build long-term security
• Time Off: Generous paid vacation, sick leave, and holiday schedule
• Family Support: Paid parental leave and flexibility to support work-life balance
• Performance Rewards: Annual bonus opportunities tied to company and individual success
• Professional Growth: Hands-on experience with flight hardware, mentorship from Senior Engineers and Principals, and opportunities to contribute to cutting-edge space programs from day one.
• Mission-Driven Work: Be part of a team developing breakthrough space hardware that directly impacts the future of exploration

How to Apply

We are looking for high-potential individuals who learn fast and work hard.

• Resume: Highlight concrete technical achievements.
• Portfolio/Thesis: If you have an M.S. or Ph.D., please attach your thesis or a technical portfolio. We want to see how you think and the depth of your work.
• Cover Letter: Not required. (In lieu of a cover letter, you will be asked to answer brief technical screening questions in the application form.)

Equal Opportunity Employer

IRPI is an Equal Opportunity Employer. We evaluate qualified applicants without regard to race, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, disability, veteran status, marital status, or any other legally protected category.