← All roles

Mechanical Cognizant System Engineer

Aalo· Engineering
Apply on company site
Idaho Falls, IDfull-timePosted 1w ago

About the role

Mechanical Cognizant System Engineer (CSE) responsible for lifecycle technical ownership of assigned mechanical systems at the CAF on the Aalo-X site, with initial focus on the Critical Assembly Vessel (CAV) and Reactivity Control System (RCS). Collaborates with Operations, Maintenance, Nuclear Safety, QA, vendors, project engineers, and the Design Authority to ensure safety, reliability, configuration control, and defensible engineering.

Responsibilities

  • Maintain detailed technical knowledge of assigned system functions, design requirements, performance criteria, interfaces, operating limits, and current configuration; ensure traceability among requirements and controlled documentation.
  • Serve as the principal engineering point of contact for assigned systems.
  • Maintain System Design Descriptions, drawings, calculations, specifications, vendor information, technical evaluations, and applicable engineering inputs to procedures.
  • Maintain awareness of system interfaces with electrical, I&C, structural, facility, and reactor systems.
  • Monitor system health using surveillance results, inspection data, operating history, maintenance history, equipment condition, and field observations; review test results against design requirements.
  • Trend parameters to identify degradation; perform or support walkdowns and material-condition assessments.
  • Identify recurring equipment issues and develop corrective actions; escalate adverse trends.
  • Provide engineering support for operation, troubleshooting, maintenance, testing, and emergent issues; contribute to maintenance planning and acceptance criteria.
  • Evaluate degraded/nonconforming conditions; support investigations, root-cause analyses, and corrective actions.
  • Review completed work and test results to verify restoration of configuration and performance.
  • Participate in change reviews; evaluate impacts to requirements, interfaces, performance, safety functions, documentation, testing, and qualification.
  • Support USQ screening/evaluations with accurate technical information.
  • Support configuration walkdowns and reconcile field conditions with documentation; assist with Engineering Change Requests/Notices.
  • Monitor replacement-part availability and obsolescence; develop or review technical requirements for replacement equipment.
  • Support design, installation, testing, turnover of modifications; participate in future reactor design reviews focusing on operability, maintainability, reliability, testability, and configuration control.
  • Support commissioning and turnover of new systems.

Qualifications

  • Bachelor's degree in Mechanical Engineering or closely related engineering discipline
  • 5+ years of relevant engineering experience in nuclear power, DOE facilities, power generation, high-hazard industry, aerospace, petrochemical facilities, or other regulated environment
  • Strong mechanical system-engineering fundamentals
  • Experience supporting and troubleshooting operating mechanical equipment
  • Ability to interpret mechanical drawings, P&IDs, system descriptions, calculations, specifications, and vendor documentation
  • Experience with mechanical equipment such as pressure boundaries, actuators, mechanical drives, valves, structures, or similar high-reliability equipment
  • Strong written and verbal technical communication skills
  • Ability to independently drive technical issues through resolution

Skills

Required:Technical ownership of mechanical systemsSystem design and documentation managementSystem health monitoringChange management and configuration controlInterdisciplinary collaboration

Benefits

  • Competitive salary based on technical level
  • Health, Dental, Vision Insurance
  • Paid Time Off
  • Corporate Gym Membership
Last updated Oct 15, 2026. Interested? Apply on the company site.

About Aalo

Welcome to the dawn of a Second Atomic Age

Creating abundant and dependable clean energy to power humanity for generations.

nuclearclean energyreactorspower plants
Company profileWebsite

More open roles at Aalo