Nuclear Mechanical Systems Engineer

Mechanical Engineer – Nuclear Design (100% Remote)Design the Future of Energy—From AnywhereWe’re seeking a Mechanical Engineer – Nuclear Design to deliver high‑impact engineering solutions that support the safety, reliability, and long‑term performance of nuclear and power generation facilities. In this role, you’ll solve complex mechanical challenges, guide projects from investigation through implementation, and collaborate with top technical experts across the energy sector—all while working 100% remotely.This is an opportunity to apply deep mechanical engineering expertise to some of the most critical energy infrastructure in the country, in an environment that values quality, technical excellence, and continuous growth.What You’ll Do

• Lead mechanical engineering projects by analyzing complex technical challenges and delivering practical, compliant solutions
• Provide expert guidance on mechanical design and construction methods for nuclear and power generation systems
• Perform and review complex engineering calculations and technical design deliverables
• Lead investigations, modeling efforts, prototype studies, and system‑level analyses
• Ensure designs meet all applicable codes, standards, regulatory requirements, and Quality Assurance expectations
• Define performance specifications for mechanical components, equipment, systems, and processes
• Apply principles of mechanics, thermodynamics, hydraulics, heat transfer, and materials science
• Collaborate with multidisciplinary engineering teams to manage interfaces and understand design impacts
• Support engineering schedules and resource planning
• Apply and support engineering change control processes
• Build trusted relationships with utility and station customers through clear, technically sound communication

What You Bring

• Bachelor of Science in Mechanical Engineering from an ABET‑accredited program
• 4–12 years of relevant mechanical engineering experience
• Nuclear industry experience OR experience supporting related power generation facilities (e.g., fossil, thermal, or combined‑cycle power plants)
• Working knowledge of mechanical design codes, standards, and regulations applicable to nuclear or large‑scale power generation facilities
• Experience working within Quality Assurance–driven environments (nuclear QA preferred)
• Proficiency with AutoCAD and mechanical engineering design tools
• Proven ability to perform and review complex calculations and design documentation
• Strong time management skills and ability to juggle multiple priorities
• Ability to interface confidently with utility and plant stakeholders
• Strong written, verbal, and interpersonal communication skills

Nice to Have

• Direct nuclear plant design or modification experience
• Experience supporting power plant lifecycle projects, upgrades, or system modifications
• Familiarity with Engineering Change Control processes
• Project engineering or technical leadership experience
• Interest in long‑term growth in nuclear and power generation engineering
• Thrives in a fast‑paced, technically rigorous environment

Why This Role

• 100% Remote (Eastern or Central Time zones)
• Work on critical energy infrastructure projects with long‑term industry relevance
• Exposure to complex, meaningful engineering challenges
• Culture that values technical excellence, mentorship, and career growth
• Opportunity to advance along technical and leadership paths

Job Type & Location This is a Contract to Hire position based out of Naperville, IL. Pay And Benefits The pay range for this position is $40.00 - $90.00/hr. Requirements Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type This is a fully remote position. Application Deadline This position is anticipated to close on May 31, 2026. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options. San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records. Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.