Top 4790 Nuclear Systems Engineer Jobs

Senior Nuclear Systems Engineer
Holtec —Camden, NJ
- $140,000 - $165,000 a year
- Hybrid work
- Microsoft Excel
- Engineering
- Master's degree
- Wellness program
- Commuter assistance
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Senior Nuclear Surety Systems Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- Engineering
- Travel
- Disability insurance
- Health insurance
Junior I & C Design Engineer
System One —Bellevue, WA
- $115 - $190 an hour
- Contract
- Office
- Continuous improvement
- Travel
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Radiological Engineer
System One —Corvallis, OR
- Full-time
- Remote
- Bachelor of Science
- Analysis skills
- Mentoring
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14d
Safeguards Enforcement Analyst, Radiological & Nuclear Harms
Anthropic —Remote
- $245,000 - $285,000 a year
- On call
- Hybrid work
- Writing skills
- Research
- Office
- Parental leave
- Flexible schedule
10d
Nuclear Engineer
Realta Fusion Inc. —Madison, WI
- Bachelor of Science
- Data analysis skills
- Mid-level
- Health insurance
- Dental insurance
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Junior Test Engineer – Energy and Space Division
Information Systems Laboratories —Remote
- Email
- Remote
- Computer Science
- Bachelor's degree
- Experience equivalent to degree accepted
Intermediate Systems Design Engineer, Nuclear
ATS Automation Tooling Systems Inc. —Lewis Center, OH
- Microsoft Excel
- 11+ years
- Mid-level
- Disability insurance
- Health insurance
12d
Nuclear Engineer
Standard Nuclear, Inc. —Oak Ridge, TN
- System design
- Continuous improvement
- Travel
- Health savings account
- Paid holidays
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Nuclear Analysis Technician
Westinghouse Electric - USA —Cranberry Township, PA
- $41,000 - $67,000 a year
- Mid-level
- Analysis skills
- Associate's degree
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Nuclear Criticality Safety Engineer
Edgewater Technical Associates —Wilmington, NC
- Full-time
- Master's degree
- Bachelor's degree
- Doctor of Philosophy
- Disability insurance
- Health insurance
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Flight Systems Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Bachelor of Science
- Math
- Bachelor's degree
- Disability insurance
- Health insurance
Instrumentation Systems Engineer
Thea Energy —Kearny, NJ
- $110,000 - $150,000 a year
- Weekends as needed
- 5 years
- System design
- Ability to lift 50 pounds
- Health insurance
- Dental insurance
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Experienced Reentry Systems Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Bachelor of Science
- Engineering
- System design
- Disability insurance
- Health insurance
Nuclear Criticality Safety Engineer
Boston Government Services, LLC —Oak Ridge, TN
- Part-time
- 5 years
- High school diploma or GED
- Analysis skills
- Disability insurance
- Health insurance
2026 Graduate - Missile, Reentry, and Hypersonics Systems Performance
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $85,000 - $165,000 a year
- Full-time
- Master's degree
- Python
- Entry level
- Disability insurance
- Health insurance
Nuclear Safety Engineer
Edgewater Technical Associates —Oak Ridge, TN
- 5 years
- Engineering
- Research
- Disability insurance
- Health insurance
Quick Apply
Control Systems Engineer
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- 5 years
- System design
- Analysis skills
- Disability insurance
- Health insurance
Senior Systems Engineer - Nuclear Safety / Surety
General Dynamics Mission Systems, Inc —Pittsfield, MA
- $124,397 - $138,003 a year
- Full-time
- System design
- Office
- 3 years
Plant Utilities Engineer 1
Sunmount DDSOO —Tupper Lake, NY
- $56,506 - $68,630 a year
- Full-time
- Maintenance
- Mid-level
- Residential
- Paid parental leave
- Health savings account
Quick Apply

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Senior Nuclear Systems Engineer

Holtec -
Camden, NJ

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Job Details

$140,000 - $165,000 a year

Benefits

Wellness program
Commuter assistance
AD&D insurance
Paid holidays
Relocation assistance
Health insurance
Dental insurance
Paid time off
Employee assistance program
Vision insurance

Qualifications

Thermal analysis
Fluid dynamics
Communication with suppliers
Stakeholder engagement
Microsoft Excel
Content creation for technical audiences
Requirements specification
Engineering phase involvement
Requirements design
Word embeddings
Thermal hydraulics
System design for system development
Team development
Mechanical drawings
Collaboration with product development teams
Bachelor's degree in engineering
Managing engineering teams
Professional development support
Requirements analysis
Mentoring
Design engineering
Requirements management
Collaboration with manufacturing teams
Productivity software
Design of mechanical systems
Technical writing experience within technology
Product design documentation
Stakeholder relationship building
Stakeholder management

Full Job Description

The Senior Nuclear Systems Engineer supports the development of a next‑generation nuclear power plant as part of a multidisciplinary engineering team responsible for Nuclear Island (NI) systems‑level design. This role is intended for experienced engineers who can act as a technical authority for assigned NI systems, independently leading system‑level design, integration, and licensing activities while mentoring junior engineers in a highly regulated environment. Supporting the SMR‑300, this position works closely with engineering, manufacturing, and licensing teams as part of a U.S. Government cost‑shared development program, developing system requirements, specifications, analyses, and design documentation to support safe, compliant, and executable plant designs.

Location: Camden, NJ or North Pittsburgh, PA (Relocation assistance available!)

Primary Responsibilities:

Lead multi‑disciplinary system engineering and integration activities across major SMR‑300 plant systems, ensuring technical consistency and alignment across engineering disciplines
Develop and manage system requirements, interface definitions, and component specifications to support detailed design, analysis, and licensing activities
Serve as a technical mentor to early‑career and mid‑level systems engineers, providing design guidance and reviewing calculations, specifications, and technical deliverables
Perform and oversee engineering analyses and calculations, particularly in areas related to thermal‑fluids and overall plant system performance
Conduct and support technical trade studies and design evaluations that inform high‑impact decisions affecting plant architecture, safety, and performance
Coordinate closely with licensing, safety, and regulatory teams to ensure system designs support safety case development and meet applicable codes and regulatory expectations
Collaborate with internal engineering teams, suppliers, and manufacturing partners to ensure system designs are technically sound, manufacturable, and executable
Support technical reviews, design documentation development, and internal design approval processes in alignment with program milestones and quality standards
Serve as a technical lead for assigned Nuclear Island systems, owning system integration, requirements, and cross‑discipline alignment.
Execute assigned system‑level engineering scope for the SMR‑300 development program, delivering work with a high standard of quality, safety, and regulatory rigor

Requirements:

Bachelor’s degree in Engineering (Mechanical, Nuclear, Electrical, or related discipline); Master’s degree preferred
8+ years of progressive engineering experience, with demonstrated growth in technical responsibility and scope
Prior experience serving as a system owner or lead engineer for safety‑related Nuclear Island (NI) systems on an operating or new‑build nuclear power plant strongly preferred
Demonstrated experience mentoring and technically developing junior engineers, including review of designs, calculations, and system‑level deliverables
Proven ability to lead multidisciplinary engineering teams, resolve highly complex technical issues, and drive system‑level decisions
Strong fundamentals in heat transfer and fluid dynamics, with demonstrated application to complex plant systems
Experience developing engineering designs, specifications, drawings, and technical requirements in collaboration with engineers, suppliers, and manufacturers
Experience working in the nuclear energy industry in a system design or systems engineering capacity preferred; candidates with aerospace, defense, or other regulated‑industry systems experience also encouraged
Familiarity with engineering and design tools such as SmartPlant, Mathcad, AutoCAD, Pipe Flo, HTRI, Engineering Lifecycle Management (ELM), and requirements management tools (e.g., DOORS NG) preferred
Excellent technical writing, communication, and stakeholder engagement skills
Proficiency in Microsoft Office applications, particularly Word and Excel
EIT and/or PE certification preferred

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 $140,000 to $165,000

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™.

Quick Apply

Refine Your Search

Nuclear Systems Engineer jobs

Senior Nuclear Systems Engineer

Senior Nuclear Surety Systems Engineer

Junior I & C Design Engineer

Radiological Engineer

Safeguards Enforcement Analyst, Radiological & Nuclear Harms

Nuclear Engineer

Junior Test Engineer – Energy and Space Division

Intermediate Systems Design Engineer, Nuclear

Nuclear Engineer

Nuclear Analysis Technician

Nuclear Criticality Safety Engineer

Flight Systems Engineer

Instrumentation Systems Engineer

Experienced Reentry Systems Engineer

Nuclear Criticality Safety Engineer

2026 Graduate - Missile, Reentry, and Hypersonics Systems Performance

Nuclear Safety Engineer

Control Systems Engineer

Senior Systems Engineer - Nuclear Safety / Surety

Plant Utilities Engineer 1

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