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Mechanical Engineer III
Job Code:2022-P2S-014
Location:Oak Ridge, TN
Division:Engineering - 1.4.4
Duration:Direct Hire

Job Responsibilities:

Position:   Mechanical Engineer III or IV                              

Division:   Engineering

Duration:  Direct Hire

Location:  Oak Ridge, TN


Company Description: 

Professional Project Services Inc. has upcoming opportunity for Piping Mechanical Engineer III or IV (Direct Hire) position at our office in Oak Ridge, TN.  Please submit resumes via the web page link below.  


Professional Project Services, Inc. (Pro2Serve®) is a nationally-recognized technical and engineering services firm dedicated to providing critical infrastructure engineering services in support of our Nation’s security. Pro2Serve provides solutions to improve the effectiveness and efficiency of our government and private clients. We support the defense, energy, and science markets through responsive, cost-effective execution of critical security, facilities and infrastructure, nuclear defense and nonproliferation, and environmental projects.


Job Description

Principle Areas of Responsibility: Piping

  • Developing process flow diagrams, piping and instrumentation diagrams, and sequences of operations; selection and layout of mechanical equipment and associated piping systems; and developing mechanical construction and equipment specifications, test and inspection plans, and system design descriptions.
  • Perform hands-on CAD using Microstation and/or AutoCAD MEP and/or Revit platforms
  • Perform piping calculations with industry software (Arrow, Fathom,  etc.). 
  • Communicate with equipment vendors to determine requirements for applying products. 
  • Perform field verification and take-offs of existing systems for renovation projects. 
  • Coordinate with other disciplines (fire protection, architectural, structural, and Electrical etc) for Piping details. 
  • Understand work planning and manage design process to the available hours and schedule.  
  • Generate calculations, design analyses, construction drawings, and specifications.  

Design experience should include the following:

  • Mechanical wet and dry piping systems (all systems).
  • Heating and chilled water hydronic piping systems, natural gas piping systems, domestic water and waste water piping systems, steam and condensate piping systems, compressed air systems, and mechanical system controls, etc.
  • Piping layout design
  • Facilities Layout
  • Plumbing
  • Knowledge of Federal requirements for life cycle cost analyses of energy consuming systems and building envelope alternatives
  • DOE, DOD and Nuclear experience is a plus

Job Requirements

Must have a Bachelor’s degree in Mechanical Engineering.  A Master’s Degree in Engineering is plus.

Must have a PE. 

Requires progressive experience in Mechanical Engineering (Piping). Minimum 8 years’ experience or higher.  Ability to demonstrate competency in design of common Piping systems and equipment, including both air and hydronic equipment.

Ability to demonstrate extensive knowledge of codes and standards, including ICC, ASHRAE, ASME, IBC, IPC and NFPA + Familiarity with ASME B31.1, B31.3 and B31.9 plus ASME Section VIII

Familiarity of pipe line sizing calculations, sizing of pressure relief valves, sizing of pressure control valves

Must be familiar with plumbing system design including working knowledge of common plumbing codes.

Possess working knowledge of computers and software such as AutoCAD and /or Microstation, Microsoft Office Suite and software used for specific technical applications within the department.

Superior verbal and written communication skills.


Direct Hire


Federal Government Clearance:

This position may require the ability to obtain a government clearance. This position may require reviews and test for absence of any illegal drugs along with a background investigation by the Federal government in order to obtain an access authorization prior to employment, and may require subsequent reinvestigations may be required.


EEO Employer:

Affirmative Action Employer—M/F/Vet/Disab/LGBT



Pro2Serve’s benefits package was carefully designed to meet the needs of our employees and their families.


These benefits include:

  • Major Medical Plan with Prescription Card, Dental Plan, Vision, and Disability Insurance
  • Retirement Plan 401(k)
  • Employee Stock Ownership Program (ESOP)
  • Comprehensive Leave
  • Holidays



Pay Rate:
Please submit salary or hourly rate requirements along with resume or in a cover letter.


Job location:

Oak Ridge, TN area

Please submit resumes via the web page link.


If you meet the above requirements/qualifications, please click the Apply Now button to submit your resume to be considered for this position, as well as added to our national database.  We look forward to talking with candidates who have the requisite skills and experience level.