Senior Mechanical Design Engineer

Moonshot; United States; On-site; USD 110,000 - 150,000; Full time

Job summary

Moonshot is seeking a Senior Mechanical Engineer to lead the mechanical design of low-voltage switchgear and switchboard assemblies, including enclosures, frames, barriers, and cable management. You will develop 3D models in SolidWorks, maintain manufacturing packages, and collaborate with Electrical Engineering to ensure safety, code compliance, and high maintainability for 1200A–6000A systems.

The role also includes mentoring engineers, driving ECOs and DFx, supporting prototype builds and UL

Qualifications

• Bachelor's degree in mechanical engineering required; master's preferred.
• 7+ years in mechanical design within engineered-to-order or electrical infrastructure environments.
• 1–2 years hands-on design for low-voltage switchgear (1200A–6000A) preferred.
• Advanced SolidWorks and PDM proficiency.
• Strong sheet metal, machining, structural design, and tolerance control knowledge.
• Experience releasing complete manufacturing packages (drawings, BOMs, ECOs, revision control).
• Ability to mentor engineers and lead execution across projects.
• Ability to read complex blueprints and schematics.

Responsibilities

• Lead mechanical design of low-voltage switchgear assemblies, including enclosures and cable management.
• Develop 3D models and detailed drawings; maintain manufacturing docs and revisions.
• Support large-frame lineup configuration and installation interfaces.
• Collaborate with Electrical Engineering to ensure layouts meet safety and code compliance.
• Lead DFM/ DFA, modularization, and reduction of custom components.
• Generate and manage ECOs, redlines, and deviation requests.
• Support prototype builds, UL documentation, and certification activities.
• Mentor junior and mid-level engineers through design reviews.
• Partner with suppliers on sheet metal, machining, welding, painting, gasketing, and assembly.
• Provide shop-floor support and drive corrective actions for quality issues.
• Support continuous improvement of mechanical design standards and release processes.
• Participate in cross-functional design reviews and risk assessments.
• Support field feedback and product lifecycle improvements.
• Assist with MRB activities and nonconformance disposition.

Skills

Mechanical design

Mentoring

Blueprint reading

Tolerance control

Education

Bachelor's degree in Mechanical Engineering

Master's degree preferred

Tools

SolidWorks

PDM systems

Job description

Core Responsibilities

• Lead mechanical design of low-voltage switchgear and switchboard assemblies, including enclosures, structural frames, barriers, cable management, lifting provisions, ventilation, and service access.
• Develop 3D models, detailed drawings, and assemblies using SolidWorks; maintain complete manufacturing documentation packages including BOMs, fabrication drawings, and revision control.
• Support large-frame lineup configuration, shipping splits, installation interfaces, alignment, and maintainability for high-current systems (1200A-6000A class).
• Collaborate with Electrical Engineering to ensure mechanical layouts support bus, breakers, cable entry, metering, safety, and code compliance.
• Lead DFM and DFA activities, including modularization, standardization, part reuse, and reduction of custom components.
• Generate and manage Engineering Change Orders (ECOs), redlines, and deviation requests.
• Support prototype builds, factory acceptance testing, UL documentation, and certification activities (heat rise, dielectric, functional testing).
• Mentor junior and mid-level mechanical engineers through design reviews, technical guidance, and standard work.
• Partner with suppliers and fabricators on sheet metal, machining, welding, painting, gasketing, and assembly processes.
• Provide shop-floor support, participate in root-cause analysis, and drive corrective actions for build and quality issues.

Additional Responsibilities

• Support continuous improvement of mechanical design standards, documentation practices, and release processes.
• Participate in cross-functional design reviews and risk assessments.
• Support field feedback, serviceability improvements, and product lifecycle enhancements.
• Assist with MRB activities and nonconformance disposition when required.

Requirements:

• Bachelor's degree in Mechanical Engineering; Master's degree preferred.
• 7+ years of experience in mechanical design within engineered-to-order, electrical infrastructure, or industrial product environments.
• Minimum 1-2 years of hands-on mechanical design experience for low-voltage switchgear or switchboards (1200A-6000A class preferred).
• Advanced proficiency in SolidWorks and PDM systems.
• Strong knowledge of sheet metal, machining, structural design, and tolerance control.
• Experience releasing complete manufacturing packages (drawings, BOMs, ECOs, revision control).
• Demonstrated ability to mentor engineers and lead technical execution across projects.
• Ability to read and interpret complex blueprints, schematics, and mechanical assemblies.

Preferred Qualifications

• Experience in data center power infrastructure or mission-critical electrical equipment.
• Background with switchgear OEMs or contract manufacturers.
• Familiarity with UL witness testing and certification documentation.
• Working knowledge of UL1062, UL891, NEC, and related safety and compliance standards.

Why Moonshot?

• Career Growth: Build your career at a company defining the future of critical power infrastructure, with direct access to executive leadership and accelerated professional growth.
• Innovative Culture: Join a high-performance team that values accountability, innovation, and ownership-where your contributions directly shape the trajectory of the business.
• AI Data Center Revolution: Moonshot is at the tip of the spear in the AI data center revolution. You get to be a part of that by joining our team.