Sr. Staff Mechanical Design Engineer

Amperesand • Reno, NV

9h • Onsite

About The Position

Amperesand is disrupting industrial power with the first commercialized Solid State Transformer systems. Solid State Transformers systems are much more than a transformer replacement, enabling numerous advanced features to unlock solutions for data centers, EV charging, renewables, microgrids, and industrial installations. We are looking for mission driven team members passionate about making amazing products for worldwide electrification at maximum acceleration. Amperesand is building a global company and looking for talent across our geographies.

Requirements

• 8+ years of experience in mechanical design for power electronics, automotive, industrial, or energy products
• Bachelor’s or Master’s degree in Mechanical Engineering or a related field
• Expertise in CAD modeling using 3DEXPERIENCE (CATIA V6/V5), SolidWorks, NX, or Creo
• Deep understanding of statics, dynamics, heat transfer, and materials
• Proficiency in GD&T, tolerance analysis, and DFM/DFA principles
• Experience designing enclosures for IP-rated or outdoor-rated power equipment
• Experience with injection molding, die casting, extrusion, and sheet metal forming
• Working knowledge of metals (aluminum, steel), plastics, ceramics, gaskets, and potting compounds
• Hands-on experience taking designs from prototype through production deployment
• Familiarity with PLM systems (3DEXPERIENCE, Windchill, etc.) and engineering change workflows
• Comfortable with root-cause analysis, failure mode resolution, and mechanical reliability testing
• Strong communication skills and ability to lead cross-functional design reviews and technical deep-dives
• Prior experience collaborating with suppliers on tooling development, DFM feedback, and tolerance negotiations
• Familiarity with PCBAs, connectors, and mechanical integration of high-density electronic assemblies
• Experience with design and test documentation for regulatory standards (UL, IEC, NEC)
• Ability to drive concurrent engineering initiatives across product timelines
• Passion for product innovation, sustainability, and electrification
• Willingness and ability to travel 15%–20%, including internationally

Nice To Haves

• Experience working in Agile development environments using Scrum methodologies and tools like Jira
• Strong background in structural, thermal, and vibration analysis using Ansys Mechanical, Fluent, and Maxwell
• Familiarity with electronics packaging and PCB interface considerations
• Experience with medium- to high-voltage systems and insulation coordination (creepage, clearance, potting, sealing)

Responsibilities

• Utilize CAD software (3D EXPERIENCE (3DX), CATIA, NX, SolidWorks, Creo) to create detailed mechanical designs
• Lead the mechanical architecture and design of medium-voltage power electronics converter assemblies and complex electro-mechanical parts including plastics, sheet metal, insulators, magnetic components, and high-voltage connectors
• Perform structural FEA, thermal CFD, vibration, and fatigue assessments
• Solve packaging challenges involving electrical isolation, sealing, thermal dissipation, EMI/EMC shielding, and mechanical shock/vibration
• Define and execute structural, thermal, and environmental validation test plans
• Create 2D drawings with GD&T, engineering documentation, tolerance stacks, BOMs, and release packages through PLM systems
• Collaborate with electrical, thermal, Firmware and controls, manufacturing, test, industrial design, and suppliers to optimize DFM, DFA, and tooling strategies for high-volume production
• Lead prototype development, fabrication, assembly, and mechanical testing of new designs
• Support root-cause analysis of pilot or production issues and lead iterative improvements
• Drive trade studies on design architecture, materials, and manufacturing processes
• Guide selection for structural, thermal, and electrical compatibility in high-voltage environments
• Contribute to cooling system layouts including cold plates, thermal interfaces, and airflow paths
• Develop assembly procedures and manufacturing instructions to support scalable production
• Participate in mechanical FMEA and DVP&R activities
• Work with quality and reliability teams to meet performance, lifecycle, and safety targets
• Mentor junior engineers and provide technical leadership across product programs
• Contribute to technology development for future-generation SST products and enclosures

Benefits

• Competitive Salary + Incentive Stock Options
• Medical, vision, and dental benefits for employees and their dependents, effective from the start of hire
• Company paid Basic Life, AD&D, short-term and long-term disability insurance
• Employees receive paid time off (PTO), paid sick days, and paid company holidays so they can rest, recharge, and take care of their health and personal needs.
• Commuter Benefits
• 6-12 weeks 100% paid parental leave

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level