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Fellow Mechanical Process Design Engineer

Job in Aiken, Aiken County, South Carolina, 29805, USA
Listing for: Geosyntec Consultants
Full Time position
Listed on 2026-07-19
Job specializations:
  • Engineering
    Mechanical Engineer, Environmental Engineer, Process Engineer
Salary/Wage Range or Industry Benchmark: 140000 - 180000 USD Yearly USD 140000.00 180000.00 YEAR
Job Description & How to Apply Below

Fellow Mechanical Process Design Engineer

Primary

Location:

Aiken, South Carolina (US-SC-Aiken)

Overview

Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 30 years. We contribute to DOE's nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated Fellow Mechanical Process Design Engineer to contribute to our mission supporting our work at Savannah River Nuclear Solutions in Aiken, SC.

Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

We invest in our people. Each employee is unique, and your career at Geosyntec will be too. We offer competitive pay and benefits, and well-being programs to support you and your family.

Essential Duties and Responsibilities
  • Provide design engineering staff augmentation support to SRNS.
  • Engineering analysis, design development and generation of design output documents including but not limited to:
    Process Flow;
    Piping and Instrumentation Diagrams;
    System Descriptions;
    Mechanical Equipment Lists;
    Mechanical Equipment Sizing;
    Pipe and Valve Specifications;
    Failure Analysis;
    Accident Analysis;
    Finite Element Analysis; ASME Code Design and Evaluation;
    Pipe Stress Analysis;
    Material Handling Design;
    Fire Protection Design; HVAC Design; and Vendor Document Reviews.
  • Incorporate advanced technical practices to develop solutions for a variety of complex features such as complicated technical requirements, application of new or special materials or processes and difficult coordination or oversight requirements.
  • Engineering services shall be provided using SRNS processes and procedures.
  • Programmatic guidance will be provided by SRNS.
Education and Licensure
  • An advanced degree and experience:
    Ph.D. degree and about 10 years experience; or M.S. degree and 12 years experience; or B.S. degree and approximately 15 years experience.
Skills, Experience and Qualifications

REQUIRED SKILLS,

EXPERIENCE AND QUALIFICATIONS:

  • Due to federal contract security requirements, this position requires U.S. Citizenship.
  • Due to federal contract security requirements, candidates must be able to successfully pass a federal background investigation to secure and maintain DOE Q security clearance.
  • Health & Safety training, medical monitoring, and client-driven drug and background testing.
  • BS Degree in Mechanical or Chemical Engineering or current registration as a Professional Engineer in Mechanical or Chemical Engineering.
  • Minimum of 15 years design experience in the nuclear or process chemical industry.
  • Minimum of 10 years of experience working at one or more DOE facilities.
  • Experience creating and revising documentation in areas such as Process Flow;
    Piping and Instrumentation Diagrams;
    System Descriptions;
    Mechanical Equipment Lists;
    Mechanical Equipment Sizing;
    Pipe and Valve Specifications;
    Failure Analysis;
    Accident Analysis;
    Finite Element Analysis; ASME Code Design and Evaluation;
    Pipe Stress Analysis;
    Material Handling Design;
    Fire Protection Design; HVAC Design; and Vendor Document Reviews.
  • Must be able to perform weekly field walk downs of the job site for the engineering work being performed. These walk downs may involve construction sites with uneven surfaces and work in progress, walking for distances of over half a mile, climbing of ladders to access remote areas, and dressing out in protective clothing.

PREFERRED QUALIFICATIONS & LOCATION DETAILS:

  • Candidates who have possessed an active DOE clearance (L or Q) within the past two (2) years are preferred.
  • Previous SRS Design Engineering experience and working knowledge of SRNS design processes and procedures.
  • Mon
    - Thurs 6:45am-5:15pm EST (Onsite)
  • Local candidates or willing to relocate at the candidate's expense.
  • Duration of the

    Contract:

    1 year with the option to extend for 2 additional 1 year option years.

Please note that federal contractors are required to maintain a drug-free workplace. Regardless of state laws permitting medical or recreational marijuana use, employees working under federal contracts may be subject to federal requirements that prohibit marijuana use.

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Position Requirements
5+ Years work experience
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