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Mechanical / HVAC Designer

Oak Ridge, TN; Oak Ridge; Tennessee; TN; Oak Ridge, Tennessee; United States
Full Time On-site

Summary

Job Description

As a mid-level Mechanical / HVAC Designer in the Amentum Nuclear Projects and Consulting business unit you will work with Senior level designers to create HVAC equipment, ductwork and piping 3D models. Additional responsibilities will include coordination with other disciplines working in BIM models, working with mechanical engineers, and designers/engineers in other disciplines to deliver a fully coordinated and collaborated project. Designer will be responsible for creating the design deliverables such as orthographic and isometric drawings. Additionally, designers will assist in interference detection and resolution as well as ensuring proper integration with other tools.

  • High School Diploma/GED
  • 5+ years using BIM tools for Plant such as: SmartPlant 3D, Revit, BIM/3D software, etc…
  • Proficiency using design software such as: AutoCAD, and MicroStation
  • Industrial HVAC ductwork and piping layout design experience
  • General understanding of Building Mechanical Systems: HVAC/Piping/Plumbing

Preferred Qualifications:

  • In addition to the Basic Qualifications the ideal candidate might also have:
  • 5 or more years of experience preferred.
  • Trade School or Associates Degree
  • Strong communication skills.
  • Exhibit integrity and the highest quality in all activities
  • Self-motivated, team-focused professional
  • Self-starter with the ability to learn new design software
  • Previous nuclear and industrial design experience
  • Attention to detail

Essential Functions

Work Environment

Office environment. (95%)

Telework is not an option for this role, all work performed from secure office environment.

May be exposed to areas of high noise levels, hazardous propellants, explosives, chemicals and industrial facilities.

Physical Requirements:

Appropriate PPE and training will be provided for all conditions.

Must be able to move and sit for extended periods (100%) as well as and lift up to 35 lbs (25%).Vision correctable to 20/20. Candidate must have the ability to read and use SmartPlant design software unassisted.

Equipment and Machines:

Standard office equipment - PC, telephone, fax, copier, job related software (SmartPlant design) and other related equipment (90%)

Attendance:

Regular attendance mandatory (100%)

Overtime/work outside normal schedule required (as needed)

Travel required (<10%)

OTHER ESSENTIAL FUNCTIONS

U.S. Citizenship required. No dual citizens. Valid driver's license is required. Must be able to work in a team atmosphere. Must put forward a professional behavior that enhances productivity and promotes teamwork and cooperation. Must be familiar with and comfortable working in a team environment. Appropriate grooming and dress code acceptable for a customer environment is necessary. Must be able to obtain and maintain a security clearance as required.Must take and passa pre-employment drug and background check.

#NPC

About Amentum

Amentum

Amentum is one of the largest government services and engineering companies supporting the U.S. military, intelligence community, and federal agencies. Headquartered in Virginia with more than 50,000 employees worldwide, Amentum delivers mission-critical support across defense, cybersecurity, engineering, logistics, intelligence, aviation, nuclear, and space operations. The company plays a major role in helping government agencies solve complex national security and infrastructure challenges.

For job seekers, Amentum offers a wide variety of career opportunities across engineering, cybersecurity, intelligence, logistics, IT, aviation maintenance, program management, and cleared government support roles. The company is especially attractive to veterans, transitioning military personnel, and security-cleared professionals looking to continue supporting national security missions while building long-term career stability. Amentum also has a strong reputation for career mobility, education support, and mission-focused work across hundreds of federal programs.

Unlike many companies focused on a single niche, Amentum supports a broad range of high-impact missions—from military readiness and intelligence operations to NASA programs, cyber modernization, and critical infrastructure support. Employees often work on programs that directly support the Department of Defense, intelligence agencies, and federal civilian missions, creating opportunities to build diverse experience while contributing to meaningful national security outcomes.

As government investment continues to grow in cyber, space, engineering, and mission modernization, Amentum remains one of the strongest employers in the government contracting sector. For professionals seeking a stable, mission-driven career with opportunities for advancement, technical growth, and meaningful impact, Amentum continues to stand out as a top employer in defense and federal services.

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