Remote Nuclear Process Engineer — Energy Systems

GeoWorld; Oak Ridge, Northern (TN, KY); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical coverage

Life insurance

Disability benefits

401(k) with vesting

Employee stock purchase plan

Paid time off

Flexible work options

Job summary

AtkinsRéalis US Nuclear in Oak Ridge, TN seeks a Process/Chemical Engineer for remote work. The role develops system architecture, P&IDs, and safety‑critical designs for nuclear facilities, ensuring compliance with NRC/DOE standards. You’ll size equipment, perform mass/energy balances, and deliver high‑quality engineering documentation. Two years of post‑Bachelors experience preferred.

Qualifications

• Bachelor's degree in Chemical Engineering or related field.
• Minimum of two years post‑baccalaureate experience.
• Knowledge of NRC regulations, design codes and standards for nuclear facilities.

Responsibilities

• Develops system architecture, P&IDs for nuclear facilities and fuel cycle models.
• Prepares mass, energy and flow balance calculations and equipment sizing.
• Ensures designs comply with NRC/DOE regulations and high safety standards.
• Selects components and vessels for demanding, hazardous environments.
• Produces design deliverables such as P&IDs and Process Flow Diagrams.
• Reviews and improves test data to enhance facility efficiency.

Skills

Strong communication

Organizational skills

NRC regulations knowledge

Process simulation software

Education

Bachelor's degree in Chemical Engineering

Tools

Design software

Job description

We are seekinga Process/Chemical Engineer Energy - Remote. This remote position is based out of our Oak Ridge, TN office.

Your role

• AtkinsRéalis US Nuclear is the subsidiary of AtkinsRéalis focused on serving government and commercial clients within the Nuclear sector in the United States.
• We are focused on being recognized as a premier nuclear solutions company in the United States, delivering engineering, operations, and project management services.
• Serves both legacy and new build nuclear clients who are designing, building, upgrading, operating and maintaining nuclear power generation and fuel cycle assets.
• We are a growing business, building on the foundation of our US government fuel cycle business, our international position as an Original Equipment Manufactor (OEM) and nuclear reactor technology provider, and our world‑wide nuclear new build and legacy nuclear fleet maintenance experience.
• Executes Small Modular Reactor and nuclear fuel cycle facility projects.
• Develops and conceptualizes system architecture, flow diagrams, and piping/instrumentation diagrams (P&IDs) for nuclear facilities, auxiliary systems, or fuel cycle models.
• Performs rigorous evaluations to ensure that systems, structures and components maintain chemical safety, criticality controls, radiation shielding, and defense‑in‑depth principles under normal and off‑normal conditions, including accident scenarios.
• Ensures that all engineering designs align with local, state, and federal standards, including DOE or NRC regulations.
• Selects, tests, and specifies mechanical components, valves, and vessels to ensure they withstand highly regulated and hazardous environments.
• Evaluates test or validation data to improve the efficiency of existing nuclear facilities.
• Develops key design deliverables such as Process drawings, Process Flow Diagrams and Process & Instrumentation Diagrams/Engineering Flow Diagrams.
• Prepares, checks and/or approves calculations including mass, energy and flow balances, and pipe and equipment sizing.
• Prepares engineering documents such as specifications for process equipment.
• Ensures that design deliverables are of a high standard and compliant with relevant standards, regulations and customer specific standards, including nuclear quality assurance standards.
• Ensures that design consultants and sub‑contractors deploy suitably qualified and experienced personnel.
• Produces documentation that is technically accurate, grammatically correct, correctly formatted and professionally presented.
• Develops resolutions to technical issues and ensure necessary change control is implemented.
• Performs other duties as assigned.

About you

• Bachelor's degree in Chemical Engineering or related field.
• Minimum of two (2) years post‑baccalaureate experience.
• Previous experience providing engineering support to nuclear facility design, construction or operations.
• Strong communication skills in a challenging, multi‑tiered environment.
• Strong organizational skills.
• Knowledge of key NRC regulations, design codes and standards for commercial nuclear facilities required.
• Knowledge in the use of related design software codes, including process simulation software.
• Design of Commercial and Department of Energy nuclear reactor projects.
• Design of Commercial and Department of Energy nuclear fuel cycle facilities.
• Nuclear Steam Supply System (NSSS) Original Equipment Manufacturer (OEM) experience.
• Must be a U.S. citizen in order to be considered.

Wherever you are in your career – and whoever you are – AtkinsRéalis is for you. Here, support and collaboration are a vibrant part of a culture that lets you choose where – and how far – your career can go. Take on projects that push boundaries and drive sustainable impact, surrounded by colleagues who believe there's no limit to how brilliant you can be. It's time to join a like‑minded team where you'll be rewarded, supported, and free to be your kind of brilliant.

At AtkinsRéalis, our values—Safety, Integrity, Collaboration, Innovation, and Excellence—are more than just words. They are the foundation of who we are and how we work. These principles shape our culture, guide our decisions, and inspire us to create an environment where every team member feels empowered to grow, succeed, and make a meaningful impact.Depending on your employment status, AtkinsRéalis benefits may include medical, dental, vision, company‑paid life and short- and long‑term disability benefits, employer‑matched 401(k) with 100% vesting, employee stock purchase plan, Paid Time Off, leaves of absences options, flexible work options, recognition and employee satisfaction programs, employee assistance program, and voluntary benefits.