Jr-Level Mechanical Engineer – (Hybrid/Remote)

Amentum•Oak Ridge, TN

1d•Hybrid

About The Position

As a Jr-level mechanical engineer you will support the design and analysis of building mechanical systems for industrial and government facilities. This role involves assisting senior engineers and project managers with HVAC, ductwork, piping, and plumbing system design, engineering calculations, drawing development, and construction support. The successful candidate will collaborate with multidisciplinary design teams to deliver fully coordinated, high-quality design packages, while adhering to Amentum’s engineering procedures and quality standards.

Requirements

B.S. Mechanical Engineering from an ABET accredited engineering program.
0 to 5 years in industrial/government design of Mechanical, HVAC, Plumbing Systems, and related mechanical building systems.
Able to work in a group of engineers and designers to complete technical portions of projects within established budgets and schedules.
Familiarity with discipline-specific tools such as: Carrier HAP, Trane TRACE, AutoCAD, MicroStation, etc.
Knowledge of applicable codes & standards (International Mechanical Code, NFPA, ASHRAE, etc.).
Strong organizational skills and attention to detail.
U.S. Citizenship required (no dual citizenship)
Valid driver's license is required
Ability to obtain and maintain a security clearance
Ability to pass pre-employment background investigation and drug screening
Willingness to work overtime or outside normal hours as needed
Professional appearance appropriate for a customer‑facing engineering environment
Travel required: less than 10%

Nice To Haves

Engineering-in-Training (EIT), or ability to obtain
Strong analytical, problem-solving, and communication skills
Proficiency with Microsoft Office (Excel, Word, Outlook)
Self-motivated and team-oriented professional with high personal integrity

Responsibilities

Assist senior engineers with the design of HVAC, plumbing, and piping systems, including B31.3 process piping
Perform basic engineering calculations under direct supervision, such as: Heating and cooling load calculations Pipe and duct sizing Equipment selection support
Create and revise engineering drawings using AutoCAD, MicroStation, Revit, SmartPlant, or similar drafting tools.
Apply applicable codes, standards, and procedures (e.g., IMC, ASHRAE, NFPA, ASME)
Attend project meetings and training sessions as required
Maintain organized project files, drawings, and documentation
Follow established quality assurance programs and procedures