Senior Nuclear Mechanical Engineer

Requisition Id 15221 

 

Overview:

We are seeking a Nuclear Mechanical Engineer to join the Systems Engineering (SE) Group within the Research Reactors Division (RRD) at Oak Ridge National Lab (ORNL). Our group is responsible for the High Flux Isotope Reactor (HFIR) configuration management program. The SE Group also provides technical support to operations and maintenance and performs systems analysis. In this role, you will perform design engineering and support manufacturing and fabrication of reactor core components, fuel elements, control rods and plates, etc. You will also handle maintaining overall cognizance of assigned HFIR structures, systems, and components (SSCs) and provide systems engineering support for operations and maintenance. 

 

Major Duties/Responsibilities:

Configuration Management

• Prepares engineering designs for new installations and for replacement and upgrade of HFIR structures, systems, and components (SSCs).  
• Performs calculations and analyses to support design basis and requirements. 
• Applies relevant codes and standards, such as ASTM, ASME, AWS, GD&T, QS9000, ISO14001, etc.  
• Supports development of reactor core components replacement plan. 
• Prepares design specifications to define and determine acceptance criteria for component upgrades. 
• Prepares material specifications and provides technical support in procurement of materials. 
• Project leads fabrication, machining, and assembly of reactor core components, experiments, special tooling, etc. in accordance with HFIR specifications. 
• Implements modifications in accordance with RRD configuration control processes. 
• Prepares and maintains as-built documentation for assigned HFIR SSCs, including engineering drawings, specifications, system descriptions, relevant databases, and labeling. 
• Provides project management for installation of mechanical design changes. 

 

Maintenance Support

• Fixes and analyzes system and component failures and develops corrective actions. 
• Provides written work package instructions to perform and document work. 
• Provides field technical support to craft supervisors and craft. 
• Provides input to preventive and predictive maintenance work instructions.

 

Operations Support

• Performs operability assessments to determine equipment impact on HFIR operation.

 

Systems Analysis

• Analyzes and trends results of preventive and predictive maintenance data. 
• Analyzes equipment performance history. 
• Performs overall systems health evaluation in accordance with HFIR Reliability Program, which involves the following: 
  • System Health Indicators 
  • Identification of new and status of existing equipment vulnerabilities 
  • HFIR 3-Year Planning Activities 
  • Identification of Spare Parts deficiencies 
  • Walk-Downs to Assess System Configuration and Material Condition 
  • Assessment of open Modifications, Deviations, and Corrective Work Packages
• 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.

 

Basic Qualifications:

• A BS in mechanical engineering related field and at least 15 years of proven experience. 
• Experience in project management, leading maintenance tasks, procedure development, procurement of materials and equipment analysis. 

 

Preferred Qualifications:

• Experience and thorough understanding of ASME vessel and piping codes. 
• Ability to diagnose mechanical equipment problems and develop formal work package instructions for performance and documentation of repairs. 
•  A strong understanding of reading and interpreting mechanical design drawings as well as understanding of GD&T principles from ASME Y14.5. 
•  Familiarity with mechanical design and maintenance activities in a nuc