The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset.

Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before.

Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Transparency, Responsibility, Unity, Scrappiness, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate.

TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. TNC Services, the services division of The Nuclear Company, supports America's existing nuclear fleet by delivering specialized maintenance, outage execution, technical expertise, and workforce solutions. Built on the 25-year legacy of Powerhouse Resources, TNC Services combines proven operational expertise with The Nuclear Company's vision for the future, helping utilities maximize the reliability of today's nuclear fleet while advancing the next generation of nuclear energy.

About The Role

The Pump Mechanic is responsible for inspecting, maintaining, troubleshooting, and overhauling power generations pumps within nuclear power facilities. This role supports machine shop scheduling ensuring the reliability and performance of critical rotating equipment. The position requires strong mechanical expertise, precision measurement skills, and strict adherence to quality assurance.

ONSITE ROLE: This position is based on site at the Lark facility in Mount Holly, North Carolina. This is not a travel-based position.

Responsibilities

Overhaul safety-related pumps including RHR, CCW, Service Water, Charging, Condensate, and Feedwater systems. Disassemble, inspect, repair, and rebuild vertical and horizontal centrifugal pumps in accordance with OEM specifications. Perform precision measurements of shafts, sleeves, wear rings, and bearing fits to verify tolerances and component condition.

Install, set, and verify mechanical seals during pump rebuild activities. Troubleshoot seal failures and pump performance issues during maintenance. Interpret mechanical drawings and OEM technical manuals to guide repair and maintenance work.

Complete work package records in accordance with shop standards. Maintain strict Foreign Material Exclusion (FME) practices.

Required Qualifications

Journeyman Millwright or Industrial Mechanic certification, or equivalent hands-on mechanical experience. Extensive experience performing maintenance, inspection, and rebuilding rotating equipment and industrial pumps. Demonstrated experience installing and setting mechanical seals during pump overhaul activities.

Strong understanding of pump hydraulics, pump curves, and rotating equipment performance principles. Experience with disassembly/inspection/repair of rotating equipment including vertical, horizontal, multistage pumps, fans, compressors, etc.

Pump Mechanic (Lark/ Mount Holly, NC)