Mechanical Engineer

Optivolt•San Francisco, CA

20d•$150,000 - $210,000

About The Position

As a Mechanical Engineer at Optivolt, you will design the physical systems that enable its intelligent solar technology to operate reliably outdoors for decades. You will work across module-integrated power electronics and the Hub, owning enclosures, thermal management, mounting, packaging, and electromechanical integration from early prototypes through production. The role is based in San Francisco, California, and includes participation in on-call customer support and extended hours as needed for critical milestones.

Requirements

At least 3 years of hands-on mechanical product development experience.
Strong proficiency in SolidWorks or equivalent CAD software.
Experience designing electronics enclosures and electromechanical assemblies.
Experience with manufacturing processes such as injection molding, machining, sheet metal, or die casting.
Understanding of sealing, materials, thermal management, and mechanical reliability.
Experience with GD&T, tolerance stacks, design for manufacturing and assembly (DFM/DFA), and engineering drawings.
Ability to prototype, test, troubleshoot, and own designs through manufacturing.
Willingness to work extended hours as needed to support critical milestones.
Participation in on-call customer support is required.
Must be based in San Francisco, California.

Nice To Haves

Experience with IP-rated outdoor enclosures and battery systems.
Familiarity with potting, encapsulation, adhesives, and electronics packaging.
Experience with thermal simulation, FEA, and battery thermal management.
Experience in solar, automotive, aerospace, or high-volume electronics.

Responsibilities

Own mechanical design for products, including enclosures, assemblies, mounting systems, and thermal solutions for the Hub and module-integrated hardware.
Develop weatherproof Hub packaging, battery integration, electronics mounting, connectors, cable routing, and service access.
Design compact mechanical assemblies for integration with solar modules.
Create and maintain CAD models, drawings, tolerance analyses, bills of materials, and manufacturing documentation.
Develop designs for outdoor exposure, water ingress, thermal cycling, vibration, and long service life.
Build prototypes and conduct mechanical, environmental, and thermal evaluations to address packaging and thermal challenges.
Integrate PCBs, batteries, connectors, and thermal interfaces in collaboration with electrical engineering, improving installation and serviceability.
Work with suppliers on tooling, materials, assembly methods, and production readiness.
Validate designs in real-world use and improve product cost, assembly time, field installation, and serviceability.
Participate in on-call customer support and work extended hours as needed to support critical milestones.