Senior Process/Chemical Engineer

AtkinsRéalis

Senior Process/Chemical Engineer focusing on energy and nuclear facilities design. Responsible for architecture development, evaluations and compliance with safety regulations.

Posted 6/10/2026full-timeRemote • Tennessee • 🇺🇸 United StatesSenior💰 $90,000 - $150,000 per yearWebsite

About the role

Key responsibilities & impact

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
You select, test, and specify 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 complex problems or technical issues and ensure necessary change control is implemented
Works independently receiving only minimal guidance
May act as a resource for other colleagues with less experience
Performs other duties as assigned.

Requirements

What you’ll need

Bachelor's degree in Chemical Engineering or related field
Minimum of five (5) 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
Professional Engineering (PE) License preferred
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.

Benefits

Comp & perks

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
voluntary benefits

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

system architectureflow diagramspiping/instrumentation diagramschemical safetycriticality controlsradiation shieldingengineering calculationsprocess simulation softwaredesign codesnuclear quality assurance

Soft Skills

strong communication skillsstrong organizational skillsproblem-solvingindependent workmentoring

Certifications

Bachelor's degree in Chemical EngineeringProfessional Engineering (PE) License