Engineer jobs in United States

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Amentum

Senior Mechanical Process Engineer

Amentum

Posted: 10/21/2026
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Amentum

Senior Mechanical Process Engineer

Amentum
Posted 10/21/2026full-timeUnited StatesSenior💰 $120,000 - $155,000 per yearWebsite
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Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in designing and analyzing process systems, including piping and thermal conditioning systems, while effectively managing project scope, schedule, and budget. Proficient in leading multidisciplinary engineering teams and providing technical guidance to junior engineers.

Highest-signal resume keywords
Process Systems DesignProject ManagementMechanical Engineering AnalysisPiping Systems KnowledgeProfessional Engineer (PE) License

About the role

Key responsibilities & impact
  • Lead project teams developing designs for process systems supporting research and test facilities
  • Own technical schedule and budget performance for assigned work
  • Plan, schedule, conduct, and coordinate engineering activities
  • Analyze project features and scope using sound engineering principles and best practices
  • Review assigned tasks and junior engineers’ work for completeness, accuracy, and documentation
  • Develop technical reports and presentations for project management teams and clients
  • Perform formal quality checks of others’ work
  • Lead, mentor, and provide technical guidance to junior engineers
  • 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, fuel, and specialty HVAC systems
  • Support the Project Manager in design and engineering efforts
  • Participate in internal and external meetings and design reviews
  • Gather information, interview stakeholders, conduct studies, perform calculations, and prepare layouts and sketches
  • Provide installation support and supervision with suppliers, subcontractors, and other trades remotely and at project sites
  • Create engineering calculations and specifications and oversee engineering drawings
  • Perform field work, travel for design reviews, factory acceptance testing, construction activities, startup, and commissioning as required

Requirements

What you’ll need
  • US citizenship is required
  • Bachelor of Science in Mechanical, Aerospace, or a related engineering field from an ABET-accredited program
  • Minimum 10 years engineering experience, or 12 years engineering experience and a master’s degree from an accredited engineering school
  • Prior experience designing process systems, including piping and thermal conditioning systems
  • Ability to work independently and collaboratively within a team environment
  • Ability to lead and contribute effectively within a multidisciplinary engineering team
  • Knowledge and experience with standard and specialized process piping systems
  • Strong mechanical and process engineering analytical and problem-solving skills
  • Excellent verbal and written communication skills and strong organizational abilities
  • Experience managing project scope, schedule, and budget for individual engineering projects
  • Working knowledge of pumps, valves, heat exchangers, chillers, and rotating equipment
  • Experience developing process system layouts, engineering drawings, and technical specifications
  • Site and field installation experience, including troubleshooting and resolving process system issues
  • Knowledge of ASME B31.1, ASME B31.3, and ASME Boiler & Pressure Vessel Code requirements
  • Knowledge of thermodynamics, fluid mechanics, thermal sciences, and process systems
  • Professional Engineer (PE) license or ability to obtain licensure preferred
  • Experience with AutoCAD, 3D modeling software, AutoPIPE, CAESAR II, Mathcad, Creo, and AFT preferred
  • Prior design experience supporting DOE, DoD, NASA, nuclear, or test facility projects preferred
  • Experience with NQA-1 quality assurance programs preferred
  • Current or previous U.S. Security Clearance, including a Q Clearance, preferred

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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Process Systems EngineeringThermal Conditioning SystemsEngineering CalculationsTechnical Specifications DevelopmentFluid MechanicsThermodynamicsPiping DesignQuality AssuranceField Installation ExperienceProject Scope Management
Soft Skills
LeadershipCollaborationCommunicationOrganizational SkillsProblem-Solving
Tools & Technologies
AutoCAD3D Modeling SoftwareAutoPIPECAESAR IIMathcadCreoAFT
Certifications & Qualifications
Professional Engineer (PE) LicenseU.S. Security Clearance
Industry Keywords
ASME B31.1ASME B31.3ASME Boiler & Pressure Vessel CodeDOE ProjectsDoD ProjectsNASA ProjectsNQA-1 Quality Assurance