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Process Engineer III/Senior Process Engineer I

Merrick & Company
paid time off, 401(k)
United States, Tennessee, Oak Ridge
1093 Commerce Park Drive (Show on map)
May 22, 2026
OVERVIEW

Merrick & Companyis looking for an experienced/senior Process Engineerto join our team inOak Ridge, TN. We're seeking candidates who are passionate about nuclear design, enjoy working on a multidisciplinary team, and appreciate the Knoxville, TN area.

In this role, you will primarily focus on innovative nuclear and energy projects. Successful candidates will collaborate with a diverse team of engineers and designers to deliver high-quality design and engineering solutions.

In-office/WFH hybrid schedules are offered.


WHAT YOU'LL DO

  • Independently evaluate and solve complex problems with limited guidance from senior staff.
  • Work with other disciplines to improve accuracy of the deliverables, schedule, and budget commitments.
  • Prepares or oversees process design deliverables including:
    • Process Flow Diagrams
    • Piping and Instrumentation Diagrams
    • Equipment sizing calculations
    • Process line sizing calculations
    • Pressure relief device sizing calculations
    • Mass & energy balances / process simulations
    • Equipment and Instrument datasheets
    • Piping/equipment specifications
  • Interpret customer requirements or code/standard requirements to establish design criteria.
  • Lead or actively contribute to client meetings and technical discussions and develop strong client relationships.
  • Support business development efforts through preparation of technical scopes and proposal estimates.
  • Provide in-depth and comprehensive technical peer reviews on design documents in a timely manner.
  • Technical work/documents are mostly error free and demonstrate self-checking of work before submitting documents for peer review.
  • Be accountable for the technical quality and completeness of process design deliverables.
  • Lead process design efforts on projects and coordinate with multidisciplinary teams.
  • Determines feasibility of designing new plant equipment or modifying existing facilities considering costs, available space, time limitations, company planning and other technical and economic factors.
  • Able to perform almost all process design tasks independently.
  • Leading a team of more junior engineers and designers on projects.
  • Act as a formal supervisor and mentor to more junior engineers.
  • Work effectively in a multidisciplinary design team environment.
  • Stamp design documents as a Professional Engineer (PE), as applicable.

REQUIRED QUALIFICATIONS

  • Bachelor's degree in engineering from A.B.E.T accredited program required.
  • Professional Engineer (P.E.) License required, or ability to obtain it within 12 months of hire.
  • 8+ years of related engineering experience required.
  • Process Lead experience includes supervising, leading, managing and mentoring a team of electrical engineers and designers on concurrent projects.
  • Experience using ChemCad/Aspen/HYSYS (or similar) process simulator and AFT Fathom, AFT Arrow (or similar) for hydraulic pipe flow modeling preferred.
  • Exhibits generally sound technical knowledge to produce design deliverables with minimal guidance from senior engineers.
  • Acquires general knowledge of principles and practices of related fields and ability to function on multi-disciplinary teams.
  • Working knowledge of industry codes and standards.
  • Ability to apply reasoning with minimal supervision.
  • Possesses effective oral and written communication skills with both teammates and clients.
  • Assists with client, vendors or official contacts and communication pertaining to specific assignments or meetings.
  • Display ability to review technical design documents/packages and be able to identify issues/pitfalls and actively propose solutions.
  • Act as peer reviewer to design documents authored by junior engineers and provide quality engineering reviews.
  • Client projects for this position require US Citizenship
  • #LI-Hybrid

PERKS

  • Employee Owned - all eligible U.S. employees have an Employee Stock Ownership Account.
  • Robust Employee Referral Program.
  • Annual performance and compensation reviews.
  • Professional Training and Development.
  • Employee Recognition Awards.
  • Peer Mentor Program
  • And Much More!

ADDITIONAL INFORMATION

  • Apply online only. No e-mail, hard copy or third-party resumes accepted.
  • At Merrick, every resume is carefully reviewed by our team of experienced human recruiters-never by AI. We are committed to a fully human-centered hiring process, ensuring each candidate receives thoughtful, personalized attention at every stage.
  • Merrick & Company offers a competitive compensation and benefits package which includes health insurance, dental and vision coverage, 401(k), and paid time off (PTO).
  • Merrick is an Equal Opportunity Employer, including disability/vets.
  • Employment with Merrick is contingent upon completion of a pre-employment background check, MVR check, and drug screen.
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