Core Components & Fabrication Engineer

Design engineering solutions for new installations and upgrades of HFIR structures, systems, and components (SSCs). 

Conduct calculations and analyses to support design specifications and requirements. 

Ensure compliance with relevant codes and standards, including ASTM, ASME, AWS, GD&T, QS9000, and ISO14001. 

Assist in developing the reactor core component replacement plan. 

Create design specifications and establish acceptance criteria for component upgrades. 

Prepare material specifications and provide technical support for material procurement. 

Lead the fabrication, machining, and assembly of reactor core components and related tooling in accordance with HFIR specifications. 

Implement modifications following RRD configuration control processes. 

Prepare and maintain as-built documentation, including engineering drawings, specifications, and system descriptions for assigned SSCs. 

Manage projects for the installation of mechanical design changes. 

Troubleshoot and analyze system and component failures, developing corrective actions as needed. 

Write work package instructions for documentation and task execution. 

Provide technical support to craft supervisors and field crews. 

Contribute to preventive and predictive maintenance work instructions. 

Perform operability assessments to evaluate equipment impacts on HFIR operations. 

Analyze and trend preventive and predictive maintenance data and equipment performance history. 

Conduct overall systems health evaluations in line with the HFIR Reliability Program, focusing on system health indicators and identifying equipment vulnerabilities. 

Follow environmental, safety, health, and quality program requirements to promote a safe working environment. 

Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace – in how we treat one another, work together, and measure success. 

A BS degree in an engineering related field. 

A minimum of 5 years of experience in mechanical/manufacturing engineering. 

Experience in project management, leading maintenance tasks, procedure development, procurement of materials and equipment analysis. 

Strong understanding of ASME codes and standards, along with machining, fabrication practices, welding, and machine design. 

Ability to diagnose mechanical equipment issues, create formal work package instructions, and interpret mechanical design drawings, including GD&T principles (ASME Y14.5). 

Experience with CNC lathes, precision OD grinding, forging, welding, and heat treatment processes in a nuclear reactor environment. 

Familiarity with regulatory programs guiding the HFIR work environment, including DOE Orders and OSHA requirements. 

Work involves various physical requirements and working conditions. As such, a pre-hire physical will be required after offer. 

This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.