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Amentum

Mechanical Process Engineer

Amentum

. Lead and contribute to project teams developing process-system designs for automotive and aerospace research and test facilities .

Posted 9/25/2026full-timeUnited StatesMid-LevelSenior💰 $90,000 - $100,000 per yearWebsite

About the role

Key responsibilities & impact
  • Lead and contribute to project teams developing process-system designs for automotive and aerospace research and test facilities
  • Own technical schedule and budget performance for assigned work
  • Plan, schedule, conduct, and coordinate engineering work under senior-engineer direction
  • Analyze work and apply engineering principles and practices
  • Review assigned results for completeness, correctness, and documentation
  • Develop technical reports and presentations for project management and clients
  • Formally check others’ work
  • Collaborate with structural, machine design, controls and instrumentation, and aerodynamics/fluid dynamics engineers
  • Size and specify piping, ducting, compressors, pumps, fans, valves, flow measurement, and fluid-conditioning equipment
  • Design high-pressure cryogenic and pneumatic piping, high-temperature and steam systems, refrigeration, vacuum and fuel systems, and specialty HVAC systems
  • Support project managers and senior engineers in ongoing design efforts
  • Participate in internal and external meetings and design reviews
  • Gather information, interview stakeholders, perform studies and calculations, and prepare layouts and sketches
  • Support and supervise installation activities with suppliers, subcontractors, and trades
  • Create engineering calculations and specifications and oversee engineering drawings
  • Travel for design reviews, factory acceptance testing, construction support, and startup/commissioning
  • Participate in proposal development and marketing activities
  • Perform field work around machinery and on test stands
  • Work independently and as part of a multidisciplinary team to meet budgets and schedules

Requirements

What you’ll need
  • B.S. Mechanical or Aerospace Engineering from an accredited engineering school
  • Minimum 5 years engineering experience, or 2–3 years engineering experience and a master’s degree from an accredited engineering school
  • Prior design experience with process systems is preferred
  • Self-motivated with ability to work collaboratively and independently
  • Ability to work in a multi-discipline team environment
  • Proficiency in Microsoft Office Word, PowerPoint, and Excel
  • Knowledge and experience with common process piping systems
  • Strong mechanical and process engineering analytical skills
  • Excellent oral and written communication, technical problem-solving, and organizational skills
  • US citizenship required due to federal requirements
  • Experience managing scope, schedule, and budget of individual projects
  • Design experience including process drawing layouts and specifications
  • Knowledge of ASME B31.1, ASME B31.3, and ASME B&PV Code
  • Knowledge of thermodynamics, compressible and incompressible fluid flow, thermal sciences, and process systems
  • Software experience preferred: AutoCAD, AutoPipe, Caesar II, Mathcad, Creo, and AFT
  • FE/EIT certification preferred
  • Must be able to lift 50 lbs
  • Regular day-shift attendance is mandatory
  • Ability to work in office, with occasional field work, travel, site visits, and construction/project-site access

Benefits

Comp & perks
  • 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
  • Hybrid work arrangement possible for proven performers and depending on project responsibilities