✦ Luna Orbit — Engineering (Non-Software)

Mechanical Systems Engineer

at Constellation Energy

📍 Marseilles, Illinois, United States Unknown 💰 $92K – $114K USD / year Posted March 13, 2026
Salary $92K – $114K USD / year
Type Full-Time
Experience mid
Exp. Years Not specified
Education Bachelor's in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear)
Category Engineering (Non-Software)

A Mechanical Systems Engineer supporting nuclear plant operations, safety, and compliance at Constellation Energy's Marseilles facility.

  • Perform engineering and technical tasks
  • Ensure safety and regulatory compliance
  • Support nuclear plant operations
  • Develop safety analyses
  • Maintain industry standards

Focus on mechanical engineering, safety analyses, regulatory compliance, and nuclear plant support.

The ideal candidate is a mid-level Mechanical Systems Engineer with a background in nuclear plant operations, safety analyses, and compliance with industry codes and regulations. They should have a B.S. in Engineering and experience supporting nuclear or energy facilities.

B.S in Engineering (ChemicalCivil/StructuralElectricalIndustrialMechanical or Nuclear)
Mechanical EngineeringSafety AnalysesIndustry CodesRegulatory RequirementsEngineering TasksNuclear Plant Operations
Mechanical EngineeringSafety AnalysesIndustry CodesRegulatory RequirementsEngineering TasksNuclear Plant Operations
TeamworkCommunicationProblem-solvingAdaptabilityAttention to detail
Industry Energy
Job Function Support nuclear plant operations through mechanical engineering and safety compliance
Mechanical EngineerSafety AnalysesIndustry CodesRegulatory RequirementsNuclear Plant OperationsEngineering TasksMechanicalNuclearSafetyEngineeringPlant Operations

Lack of B.S. in Engineering, No experience with nuclear plant operations, Failure to meet access or medical requirements

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