Constellation Energy is seeking a Mechanical Design Engineer to develop and optimize mechanical systems for power generation and energy infrastructure. In this role, you will design components and assemblies, create detailed CAD models and drawings, and perform calculations and analyses to ensure safety, reliability, and efficiency. You will collaborate with electrical, civil, and project teams to support new builds, upgrades, and sustainable energy initiatives. This position offers the opportunity to work on impactful projects that reduce carbon footprints while advancing your career in a collaborative, innovation-driven culture. Responsibilities Design and develop mechanical systems and components for energy generation and distribution projects. Create and maintain detailed 3 D CAD models, drawings, and bills of materials. Perform engineering calculations and analyses (stress, thermal, fluids) to validate designs. Ensure designs comply with relevant codes, standards, and safety requirements (ASME, ANSI, ASTM). Collaborate with cross-functional teams to support project planning, installation, and commissioning. Support troubleshooting, root cause analysis, and design improvements for existing assets. Prepare technical documentation, specifications, and reports for internal and external stakeholders. Contribute to sustainability-focused initiatives to improve efficiency and reduce emissions. Required Skills Mechanical system design3 D CAD (Solid Works/Inventor/CREO) Auto CADFinite Element Analysis (FEA) Thermal/fluids analysis Equipment specification and sizing Piping and pressure vessel design

ASME/ANSI/ASTM

standards Project documentation and drafting Data analysis and performance modeling