---
title: Process Engineer III/Senior Process Engineer I
description: Merrick & Company is hiring for the Process Engineer III/Senior Process Engineer
  I role in Oak Ridge, TN. See the full description and apply.
type: job
url: https://www.foundrole.com/jobs/process-engineer-iii-senior-process-engineer-i-at-merrick-and-company-01a0dc98-8ea5-70f2-bfbd-c564951f4f4d
date: 2026-09-27T23:36:47Z
og_description: Join Merrick & Company as Process Engineer III/Senior Process Engineer I in Oak
  Ridge, TN. Full-time, hybrid role.
og_image: https://www.foundrole.com/og/uw9aen.png
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---

| | |
|---|---|
| **Company** | Merrick & Company |
| **Location** | Oak Ridge, TN (Hybrid) |
| **Type** | Full Time |
| **Posted** | Sep 25, 2026 |
## Description

**OVERVIEW**  

**Merrick & Company** is looking for an **experienced/senior Process Engineer** to join our team in **Oak 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

**TOTAL REWARDS & EMPLOYEE PROGRAMS**  

- **Employee Ownership** – All eligible U.S. employees participate in our Employee Stock Ownership Plan (ESOP), sharing in the company’s success.
- **Comprehensive Compensation & Benefits** – Merrick & Company offers a competitive compensation and benefits package including health insurance, dental and vision coverage, and paid time off (PTO).
- **Robust Referral Program** – Earn incentives for referring top talent to join our team.
- **Performance Reviews** – Annual reviews to recognize contributions and support career growth.
- **Professional Development** – Access to ongoing training and development opportunities to build your skills and advance your career.
- **Employee Recognition** – Formal programs to celebrate achievements and outstanding performance.
- **Peer Mentor Program** – Get support and guidance through structured mentorship opportunities.
- **And More** – Additional programs and benefits designed to support your success and well-being.

**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 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.

#LI-Hybrid
## Skills

- Supervision
- Process Design
- Code Review
- Professional Engineer
- Pipe (Fluid Conveyance)
- Planning
- Equipment Sizing
- Quality Engineering
- Mechanical Systems
- AspenTech HYSYS
- Mentoring
- Business Development
- Process Flow Diagrams
- Written Communication
- Communication
- ASPEN
- Peer Review
## Benefits

- Professional Development
- Mentorships
- Health Insurance
- Dental Insurance
- Vision Insurance
- Employee Programs
- Paid Time Off (Pto)
- Employee Stock Options (ESOs)

## How to Apply

[Apply for this position](https://www.foundrole.com/jobs/process-engineer-iii-senior-process-engineer-i-at-merrick-and-company-01a0dc98-8ea5-70f2-bfbd-c564951f4f4d?utm_source=ai_markdown)

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