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Cryogenics Mechanical Engineer

PAE1,647 open roles

Where
US-TX-Houston
Work mode
On site
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Your applicationOpen nowCryogenics Mechanical EngineerPAE · US-TX-Houston

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The clock on this job

Early applications get read.

8.2% of postings close within 7 days. Measured by our own scanner across the market. PAE postings stay open a median of 3 days.

Share of postings closed within
  1. 1.8%1 day
  2. 3.6%3 days
  3. 8.2%7 days
  4. 15.2%14 days
  5. 34.0%30 days
This job: posted today

PAE median: 3 days open

The posting

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you!

We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States.

We have an exciting opportunity for a Cryogenics Mechanical Engineer to join the team with Bastion, a teammate company!

The Cryogenics Mechanical Engineer will:

  • Perform engineering design and analysis for cryogenic components, vacuum jacketed and warm piping systems, and associated mechanical systems.
  • Develop procurement and fabrication documentation, including Statements of Work, specifications, and engineering drawings.
  • Coordinate with vendors and fabricators, participate in design reviews, and witness key testing activities.
  • Support facility operations for 20 K helium systems, 80 K liquid nitrogen storage, and distribution systems.
  • Provide troubleshooting, maintenance guidance, and technical oversight during equipment assembly, installation, and commissioning.
  • Prepare and participate in safety reviews, hazard analyses, operational procedures, and engineering review boards.
  • Collaborate with multi-disciplined engineering teams and present design and technical findings.
  • This is an on-site role.
  • Perform other duties as assigned.

Requisition Qualifications:

​This position has been posted at multiple levels. Depending on the candidate's experience, requirements, and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

  • Typically requires a bachelor's degree in Engineering and a minimum of 2- 5 years of experience in the field or in a related area.
  • Bachelor’s degree in Mechanical Engineering.
  • Experience with mechanical stress analysis of pressure components, mechanical equipment design, and hands on system development.
  • Knowledge of machining, welding, piping, and pipe fitting practices.
  • Minimum two years of progressively responsible mechanical design experience.
  • Strong written and verbal communication skills; proficiency in MS Office tools.
  • Ability to positively interact with and support contractors, vendors, and procurement professionals.

Requisition Preferences:

  • Cryogenic piping system design, fluid flow and heat transfer analysis, and cryogenic materials knowledge.
  • Experience with cold boxes, phase separators, heat exchangers, pumps, compressors, valves, and other cryogenic plant equipment.
  • Familiarity with ASME BPVC VIII, ASME B31.3, NFPA, and OSHA requirements.
  • Proficiency with 3D CAD and analysis tools (Creo, SolidWorks, Inventor, AutoCAD, ANSYS).
  • Knowledge of high vacuum systems and helium mass spec leak detection.
  • Experience with design and sizing of plant components, such as heat exchangers, pumps, compressors, piping, valves, relief devices
  • Proficient with 3D modeling using Creo, Solid Works and/or AutoCAD Inventor.
  • Familiarity with national building codes, NFPA and OSHA requirements.

Why Join Our Team?

In addition to exciting career opportunities, we also have:

  • Excellent personal and professional career growth
  • 9/80 work schedule (every other Friday off), when applicable
  • Onsite cafeteria (breakfast & lunch)
  • Much, much more!

For more information on our partnership with NASA at Johnson Space Center (JSC), please visit www.wehavespaceforyou.com

  • Proof of U.S. Citizenship or US Permanent Residency may be a requirement for this position.
  • Must be able to complete a U.S. government background investigation.
  • Management has the prerogative to select at any level for which the position is advertised.

Essential Functions

Work Environment

Generally, an office environment, but can involve inside or outside work depending on task.

Physical Requirements

Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).

Equipment and Machines

Standard office equipment (PC, telephone, printer, etc.).

Attendance

Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements.

Other Essential Functions

Professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.

#JETS #JETSII

Compensation Details:

EN2-EN4

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

10/08/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

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