Holtec International Tech Stack

Nuclear equipment design and manufacturing, focused on small modular reactors

Engineering Services Jupiter, Florida 501–1,000 employees Founded 1986 Privately Held

Holtec designs and manufactures specialized equipment for nuclear power plants, with heavy emphasis on spent fuel storage, heat transfer systems, and site services. The company is deeply invested in SMR-300 development—a small modular reactor program that dominates their active project list and hiring pipeline. Engineering roles (105 open positions) far outnumber all other departments, and the tech stack reflects capital-intensive, simulation-driven work: ANSYS, LS-DYNA, ABAQUS, and RELAP5 dominate, paired with traditional CAD/CAM tools (SolidWorks, Revit, AutoCAD) and nuclear-specific simulation codes.

Tech Stack 93 technologies

Core StackAWS AutoCAD SolidWorks Revit Python CMMS PLC ANSYS LS-DYNA STAAD.Pro GTAW GMAW ASME Fanuc Micrometer SCADA Microsoft Office Word Excel PowerPoint Oracle Primavera SAP2000 ETABS Abaqus Plaxis 3D Tekla HyperMesh Microsoft Project RELAP5 FORTRAN+63 more

What Holtec International Is Building

◆Challenges

Restarting nuclear plant after decommissioning
Ensuring compliance with industry codes
Ensuring safety compliance
Maintaining regulatory training compliance
Ensuring compliance with milestone 8 requirements
Minimizing plant downtime
Reducing equipment downtime
Troubleshooting non-conformances
Engineering issues
Cost-saving opportunities across enterprise

▲Active Projects

Smr-300 design
Sat implementation
Smr-300 small modular reactor
Code verification and validation
Smr-300 safety and licensing analyses
Refueling outages
Designing smr-300 nuclear power plant
Smr-300 program
Nuclear plant restart
Smr-300 project

Hiring Activity

Steady190 roles · 60 in 30d

Department

Engineering

105

Manufacturing

Ops

Maintenance

Finance

Security

Procurement

Seniority

Mid

Senior

Junior

Manager

Lead

Principal

Staff

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About Holtec International

Holtec International, headquartered in Jupiter, Florida, is a turnkey supplier of equipment and services for nuclear, solar, geothermal, and fossil power generation. The company operates as a fully integrated supplier with in-house design, engineering, analysis, construction, and deployment capabilities. Core product lines include dry and wet spent fuel storage systems, heat transfer equipment for commercial power plants, and site services/construction. Over 70% of output serves the U.S. domestic market, with remaining revenue from operations across Europe, Asia, Africa, South America, and Australia. The organization maintains approximately 500–1,000 employees and is actively scaling engineering and manufacturing capacity.

HeadquartersJupiter, Florida

Company Size501–1,000 employees

Founded1986

Hiring MarketsUnited States, Spain, India, United Kingdom, Brazil

Frequently Asked Questions

What is Holtec's current focus in SMR development?

Holtec is actively developing the SMR-300, a small modular reactor for distributed, carbon-free baseload energy. SMR-300 design, safety analyses, licensing, and code verification dominate their current project list.

What software does Holtec use for engineering and design?

Core tools include ANSYS, LS-DYNA, ABAQUS, SolidWorks, Revit, AutoCAD, RELAP5, and STAAD.Pro. CMMS, PLC, SCADA, and Oracle Primavera support manufacturing, operations, and project management.