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AtkinsRéalis · 15 hours ago

Nuclear Safety Analyst Intern - Summer 2026

US.TN.Oak Ridge.545 Oak Ridge Turnpike

Internship

Onsite

Intern

$25/hr - $31/hr

Start in 2026 Summer

AtkinsRéalis is seeking a Nuclear Safety Analyst intern to join their Isotek Systems, LLC U-233 Disposition Project in Oak Ridge, Tennessee. The role involves reviewing documents for nuclear safety integration, participating in safety critiques, and assisting in safety calculations and compliance checks.

Civil EngineeringConstructionEnergyInfrastructureInnovation ManagementMiningTransportation

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Reviews drafts of Work Packages, Task Orders, procedures, facility modifications, and other documents for integration of nuclear safety into facility activities

Participates in critiques/investigations involving nuclear safety issues, as requested

Participates in Hazards Identification and Analyses activities, as requested

Assists in revisions of the Criticality Accident Alarm System Needs Analysis, as requested

Performs nuclear safety implementation walkdowns and surveillances of fissile material operations, as requested

Reviews operational procedures and other project documents to ensure compliance with nuclear safety requirements

Assists in the preparation of Fissile Material Operation Screening documents, as requested

Assists in the preparation and peer review of nuclear safety calculations (e.g., dispersion analyses, radiation exposure calculations), as requested

Qualification

Nuclear engineeringMicrosoft OfficeNuclear safety softwareAnalytical skillsCommunication skills

Required

Acceptance into a Bachelor's degree program in mechanical, chemical, or nuclear engineering

Must have completed a minimum of 24 hours toward a degree from an ABET accredited program by start of internship (Summer 2026)

Proficient knowledge of Microsoft Office

Strong communication, verbal and written skills

Must be a US citizen (Real ID compliant identification) and able to obtain a DOE “L” Security Clearance

Preferred

Familiarity with nuclear safety software codes (e.g., MCNP, SCALE, HotSpot, MicroShield)

Benefits

Competitive salary

Hands-on experience with industry leaders

Support and mentorship from various professionals throughout the business

Career and educational exploration opportunities such as Client Site Visits, Weekly Lunch & Learns, & various virtual and/or in-person activities

Opportunities to work on various projects of ranging size and scope

Support & structured mentorship from various professionals throughout the global AtkinsRéalis network

Formal business and soft-skills training on topics such as time management, resilience, emotional intelligence, feedback, and communication

Integration into a robust Emerging Professional Network

Additional learning and development programs, training, career opportunities and a highly regarded tuition reimbursement program

Additional 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.