Senior Systems Engineer

The Senior Systems Engineer works with our growing, multidisciplinary team of designers and engineers responsible for the development of a next‑generation nuclear power plant. This role is intended for experienced engineers capable of independently leading system‑level technical work while collaborating across disciplines in a highly regulated environment. Supporting the design and integration of a wide range of plant components and systems for the SMR‑300, this position works closely with other engineering disciplines and licensing groups as part of a team executing a U.S. Government cost‑shared development program. This role involves hands‑on execution of system integration activities, including developing technical requirements, component and system specifications, and supporting engineering calculations, while working closely with cross‑functional engineering and licensing teams to ensure high standards for quality, safety, and regulatory compliance.

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
• Perform and oversee engineering analyses and calculations, particularly in areas related to thermal‑fluids and plant system performance
• Conduct and support technical trade studies and design evaluations, contributing to high‑impact technical 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 accordance with program milestones and quality standards

Contribute to execution of the SMR‑300 development program, delivering engineering work efficiently while maintaining high standards for quality, safety, and compliance

Requirements:

• Bachelor’s degree in engineering (Mechanical, Nuclear, Electrical, or related discipline); Master’s degree preferred
• 8 to 10 years of progressive engineering experience, with demonstrated progression in technical responsibility
• Candidates with systems engineering experience in aerospace, defense, or other highly regulated industries are encouraged to apply
• Proven experience leading multi‑disciplinary engineering teams and resolving high‑complexity technical issues
• Strong fundamentals in heat transfer and fluid dynamics, with the ability to apply these principles to complex systems
• Experience developing engineering designs, specifications, drawings, and technical requirements in collaboration with engineers and manufacturers
• Experience working in the nuclear energy industry in a design or systems engineering capacity preferred
• 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, interpersonal, and communication 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
• Additional compensation earned through incentive structure

Benefits:

• Medical, dental, and vision insurance
• 401(k) retirement plan with company match
• Paid time off and 11 Paid Holidays
• Company-paid life and AD&D insurance
• Employee Assistance Program
• Wellness resources and voluntary benefits
• Training and educational assistance 

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™.