Junior Mechanical Engineer

Remote, USA
Posted Jun 13, 2026
Full-time

Amentum is seeking a Junior Mechanical Engineer interested in HVAC and building design for their Annapolis Junction location. The role involves performing a variety of fundamental engineering tasks for the design, installation, operations, testing, and maintenance of mechanical equipment and systems.

Responsibilities

  • Prepares design documents based on Client standards for systems or items of equipment of complex and conventional HVAC equipment and systems
  • Conducts research of technical literature and performance tests on the equipment in order to formulate specific requirements for incorporation into the standards or design documents
  • Outlines tests to be performed, test methods to follow, equipment to be used, and performance to be achieved on the system
  • Address engineering and construction personnel requests for technical assistance with problems encountered with technical documentation or construction documents
  • Work with engineers to solve engineering problems and incorporation of engineering changes. Assist engineers with analysis of all known factors to establish methods of approach for a solution. Analysis includes research of specifications and standards, both military and commercial for availability of material and services
  • Checks designs to ensure adherence of required application to drawing standards
  • Participates in creation of models, manufacturing drawings, and complete Issue For Construction (IFC) documents and able to be point of contact for IFC documents development and issues
  • Develops cost estimates, including research of material, and development of man-hour requirements for design and construction
  • May be required to travel to other installations to provide technical analysis and solutions

Skills

  • Degreed Mechanical Engineer from an ABET accredited engineering program
  • Zero to three years of experience in HVAC and building design with understanding of HVAC and heat transfer principles
  • Good working knowledge of MS Office suite of software including Outlook, Word, Excel, PowerPoint, Paint
  • Must be competent with AutoCAD 2D
  • Must be a US Citizen
  • Ability to obtain/maintain a security clearance
  • Full-time in the office. Hybrid and remote work are not practical for this position
  • Working knowledge of Revit

Benefits

  • 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

Company Overview

  • Amentum is a technology and engineering company for security, defense, and energy. It was founded in 2020, and is headquartered in Germantown, Maryland, USA, with a workforce of 10001+ employees. Its website is https://www.amentum.com/.

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