Mechanical Engineer II - Nuclear
$100k - $120kHoltec International Inc
The Mechanical Engineer II – Nuclear Systems will support the analysis, design, and structural integrity assessment of mechanical components (heat exchangers, condensers, tanks, etc.) and reactor internals for advanced reactors including SMRs. This role combines technical expertise in stress analysis, fracture mechanics, fatigue evaluation, and regulatory compliance with a proven background in multidisciplinary project execution.
Location: Camden, NJ (On‑site)
Primary Responsibilities:
- Perform mechanical design and stress analysis for ASME Section III Class 1, 2, and 3 components and supports
- Conduct detailed stress analysis using industry tools (ANSYS, LS-DYNA, MATLAB, Mathcad)
- Perform fracture mechanics and fatigue life evaluations of metal structures
- Ensure compliance with nuclear codes and standards (ASME BPVC II/III/XI, ANSI/AISC N690, ANSI N14.6)
- Develop and review engineering deliverables including stress reports, design calculations, and fitness-for-service evaluations
- Review vendor reports for technical acceptance and regulatory/contract compliance
- Support fabrication, construction, and field issue resolution
- Respond to regulator requests for information in support of licensing activities
- Mentor engineers and provide technical leadership to other team members
Requirements:
- Bachelor’s degree in Mechanical, Structural, or Aerospace Engineering (MSE preferred)
- 5-7 years of experience in mechanical design analysis and component integrity
- Knowledge of material degradation mechanisms including brittle fracture and fatigue
- Experience with numerical modeling and simulation tools such as ANSYS, LS-DYNA, Solidworks
- Strong technical writing, communication, and collaboration skills
Preferred Qualifications:
- Professional Engineer (P.Eng. or PE) license
- Experience with PWR or SMR reactor systems
- Familiarity with ASME Section III Class 1, 2, 3 component design and analysis
- Familiarity with nuclear regulatory requirements (10CFR50, NUREG-0800)
- Experience with seismic design and analysis of equipment
- Eligibility to work under 10 CFR Part 810
A Generation Ahead by Design™
Investing in people who power the future.
We believe great work deserves great rewards. Our benefits go beyond the basics, reflecting our commitment to supporting your whole self…your health, your future, and your career growth. This includes:
Compensation:
- Annual compensation based on skills and experience ranging from $100,000 to $120,000
Benefits:
- Industry‑leading medical, dental, and vision coverage with a generous employer premium contribution and Day 1 eligibility!
- FLEX Program – Hybrid work opportunities available for eligible roles, where business needs and role requirements allow
- 401(k) retirement plan with up to a 5% company match and immediate vesting to support long‑term financial security
- Paid time off and 11 paid holidays to support rest, balance, and recharge
- Wellness program offering rewards for participation in company‑supported health initiatives
- Commuter benefits supporting mass transit and commuter parking options
- Company‑paid life and AD&D insurance for added peace of mind
- Education assistance to support continued education and professional growth
- Employee support and voluntary benefits, including an Employee Assistance Program and optional coverage such as disability, legal, identity theft, and insurance programs
- Benefits eligibility and offerings may vary based on role, location, and employment status
If you’re driven to solve meaningful challenges and make a lasting impact, we invite you to build your career at Holtec— a generation ahead by design™ .
- The Naval Nuclear Laboratory (NNL) New Fuel and Exams unit is seeking a mechanical engineer to join our team. The newest team member will formulate design solutions to complex problems, may complete finite element analyses (FEA), and will conduct analytical assessments...Suggested
- Navarro Research in West Mifflin, PA, is seeking a Mechanical Engineer with a strong background in materials engineering and design. Candidates should possess a relevant BS/MS degree and have proven experience in leading test programs. This role involves innovative repair...Suggested
- ENTRUST Solutions Group is seeking a dynamic Design Engineer II to join our team. In this role, you will engage in a variety of engineering... ...lifecycle.REQUIRED QUALIFICATIONS:Bachelor’s degree in mechanical engineering from accredited institution Minimum 1 year of work...SuggestedFull timeWork experience placementFlexible hours
- Naval Nuclear Laboratory (FMP) is seeking a Principal Engineer to provide technical oversight and leadership for the manufacture of nuclear reactor core components across multiple naval programs. You will resolve complex technical issues, drive process improvements, and...Suggested
- ...Mechanical Engineer - NuclearHatch is currently seeking a highly motivated Senior Mechanical Engineer – Nuclear to join our team in the United States. In the nuclear sector, we are busier than ever. Our teams are developing first-of-a-kind programs in fusion energy development...SuggestedTemporary workLocal areaFlexible hours
- The Naval Nuclear Laboratory (NNL) invites engineers to join the Fleet Reactor Mechanical organization to support FORD/NIMITZ-class aircraft carriers and submarines. You’ll work on reactor core analysis, heavy equipment, and fuel lifecycle challenges across construction...
- ...passion towards our work. We warmly welcome individuals of similar mindset to join our ranks. What You'll Be Doing As a Mechanical Engineer, you will be collaborating with an interdisciplinary team focusing on developing reliable robotic and automation systems for...Work at office
$86.1k - $134.6k
Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values... ...career? Apply today!Job DescriptionYou will work on an agile engineering team to develop and maintain radiation analysis methods and associated...For contractorsLocal areaFlexible hours$110k - $120k
...apply.Job SummaryBattelle is seeking a Principal Quality Engineer to serve as a technical authority for nuclear Quality Assurance (QA) across advanced reactor... ...software quality processes in accordance with NQA-1 Part II, Subpart 2.7.Procurement, Supplier, and Supply Chain...Work experience placementWork at officeLocal areaRemote workRelocationFlexible hours- APTIM is seeking Engineers of Radiological Work to support D&D projects at Bettis Atomic Laboratory in West Mifflin, PA. You will join a multi-discipline team, developing technical work documents, sampling plans, and waste characterizations for safe demolition and waste...
$110k - $135k
...The Pipe Stress Engineer is responsible for performing detailed... ...tools such as AutoPIPE or CAESAR II. Develop stress design... ...~ Bachelor's degree in Mechanical Engineering. ~5+ years of experience... ...Experience in nuclear or power plant projects. Knowledge...Full timeImmediate startFlexible hours- Job Title HVAC Technician Job Description General Overview: Primarily performs tasks within HVAC trade. Tasks are primarily related to the operation, repair and inspection of facilities equipment and systems within HVAC activities. Performs general maintenance...For contractorsWork experience placementLocal areaShift work
$79.1k - $112.8k
Wabtec Corporation is seeking an Engineer in Duquesne, PA, responsible for reviewing engineering drawings, code calculations, and BOM duties. Candidates should have a Bachelor’s degree in engineering, with 4-10 years of experience preferred. The salary for this role ranges...Relocation package- Naval Nuclear Laboratory is seeking a highly motivated engineer to join the fleet support team to resolve operating fleet and shipyard technical issues. Join our team for an excellent opportunity to develop and demonstrate leadership skills in the power plant engineering...Flexible hours
$86.1k - $134.6k
Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core values... ...Laboratory (NNL) New Fuel and Exams unit is seeking a mechanical engineer to join our team. The newest team member will formulate design...For contractorsLocal area$95.7k - $149.6k
Working at the Naval Nuclear Laboratory we foster pride in belonging to an organization whose culture is made up of these core... ...design work across multiple disciplines, including plant engineers in the mechanical, electrical, I&C areas, reactor design and protection...For contractorsLocal area- ...Job Description Job Description Job Summary The Structural/Mechanical Engineer II is responsible for performing design and analysis work for liquid storage structures, specialty vessels, and foundations using sound engineering principles. Typical applications include...Full timeTemporary work
$102.9k - $150k
...experienced, high-energy, HVAC Designer to join our Building Mechanical team and help deliver innovative HVAC design solutions for our... ...heavy industrial clients. You will work alongside our team of engineers and designers performing field investigations, interfacing with...Full timeWork at officeRemote work- ...Job Description Job Description Job Summary The Mechanical Senior Engineer I is responsible for performing expert level design and analysis work... ...using standard computer programs for design such as CAESAR II, AutoPipe, AutoCAD, , etc., is preferred. ~ Cooperates...Full timeFor contractors
- ...Job Description Job Description Navarro Research and Engineering is recruiting a Mechanical Engineer in West Mifflin, PA. A DOE L Clearance (or... ...deliver effective solutions for complex challenges in the nuclear and environmental fields. Joining Navarro means being a...Full timeContract workTemporary workFor contractorsLocal area
- ...Job Description Job Description Job Summary The Mechanical Engineer III is responsible for performing advanced design and analysis work... ...specialty components is required. ~ Working knowledge of CAESAR II, AutoPipe, etc. is preferred. ~ Design experience in NFPA 5...Full time
- Job Description Job ID#: 5527 Job Category: ENGINEERS Position Type: Permanent Full Time Duration: DirectTechnical Solutions Inc... ...site investigation to document the existing condition of mechanical systems within the project area.Perform heating and cooling load...Permanent employmentFull timeWork at office
- ...Job Description Job Description Kurt J. Lesker Company (KJLC) is seeking an experienced Mechanical Engineer to drive the design and development of advanced mechanical systems , including vacuum chambers and subassemblies. In this high-impact role, you’ll take...Full time
- Naval Nuclear Laboratory seeks a Thermal Hydraulic Test Engineer to advance state-of-the-art thermal hydraulic testing capabilities and hands-on lab work solving complex engineering problems. The role requires instrumentation, test specification, data processing, and collaboration...
$135k - $145k
...Mechanical Engineer Markon is building a talent pool of Mechanical Engineers to join our team as part of the Propulsion Plant Team Trainer (PPTT) project. Responsibilities include: Collaborate with multidisciplinary engineering teams across multiple locations...Temporary workWork experience placementWork at officeRemote workFlexible hours- ...Sr. Mechanical EngineerElevate your engineering career as a Sr. Mechanical Engineer. Are you a seasoned engineer passionate about designing innovative solutions... ...Experience with pipe stress analysis, including Caesar II softwareAbility to perform and review hydronic, heat,...
$120k - $127k
Markon is seeking a Mechanical Engineer to support repair technology development efforts for Navy-related engineering programs. This role involves leading test programs in laboratory environments and through commercial subcontractors, supporting the development, demonstration...Temporary workFor subcontractorRemote workFlexible hours- Naval Nuclear Laboratory is seeking a Thermal Hydraulic Test Engineer to help advance state-of-the-art testing in a high-temperature, high-pressure environment. You will implement test instrumentation, specify tests, process data, and collaborate with multiple groups to...
$155k - $185k
...Senior Nuclear Radiation Shielding Engineer The Senior Nuclear Radiation Shielding Engineer to support the design, analysis, and licensing of the SMR-300, an integral pressurized water reactor small modular reactor. The selected candidate will join an established and...Local areaImmediate startFlexible hours- ...Job Description Job Description Senior Mechanical Engineer – Robotics | 3-Month Contract Prequel Solutions is supporting an established robotics company seeking an experienced Mechanical Engineer for an immediate contract engagement supporting development of a next...Full timeContract workImmediate startRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Mechanical Engineer II - Nuclear. Be the first to apply!
- nuclear engineer West Mifflin, PA
- mechanical design West Mifflin, PA
- entry level mechanical design West Mifflin, PA
- mechanical installation West Mifflin, PA
- nuclear West Mifflin, PA
- nuclear plant West Mifflin, PA
- nuclear science West Mifflin, PA
- nuclear project manager West Mifflin, PA
- entry level nuclear West Mifflin, PA
- nuclear licensing engineer


