MEPF Engineer (Electrical & Plumbing Focus)

About the company

Aro Homes is a thriving, purpose-driven company on a mission to redefine residential construction. We create well-designed, precision-engineered homes that are beautiful, livable, and durable, built multiple times faster than traditional construction and with a positive impact on the environment. We're a diverse, experienced team of designers, builders, engineers, product developers, and businesspeople. We've shown there's a massive opportunity to reduce waste and improve sustainability while building homes in a fraction of the usual time. Our repeatable, multi-disciplinary, product-driven approach is unique in the industry. We're backed by world-class investors who care about transforming industries for the better, including Eric Schmidt's Innovation Endeavors. If you want to leave a lasting positive impact and join a culture of intelligent, passionate people, let's start a conversation.

About the role

We're hiring an experienced MEPF engineer with deep electrical and plumbing expertise to join our integrated architecture and engineering team. You'll work on volumetric prefabricated offsite construction and onsite assembly of single-family homes. You'll own the electrical and plumbing systems of our core house product and lead the full mechanical, electrical, plumbing, and fire protection (MEPF) scope. That ownership runs from the design and documentation in our models to the Title 24 energy compliance package filed for every home we build. The role spans both sides of our business: Product: You'll innovate, develop, and maintain MEPF design, details, and specifications as the product evolves, with electrical distribution and plumbing systems as your primary focus. Project: You'll produce permit documentation, including Title 24 energy documentation, collate HERS documentation, and respond to jurisdiction comments so every home permits cleanly and on schedule. At Aro, our engineers take a product version from ideation through NTA approvals, then work closely with the plant and the field until it builds cleanly. The role requires regular visits to our Sacramento, CA plant and to active job sites in the South Bay.

Responsibilities

• Electrical design and documentation: develop and maintain the electrical system for the core house product. This includes load calculations, service and panel sizing, panel schedules, circuiting, lighting and device layouts, and single-line diagrams in Revit, coordinated with the corresponding Onshape documentation.
• Plumbing design and documentation: develop and maintain domestic water, drain-waste-vent, and water heating systems, including fixture unit calculations, pipe sizing, riser diagrams, and module-to-module connection details built for factory installation and field assembly.
• Mechanical and fire protection design: maintain HVAC, ventilation, and residential fire protection design, calculations, drawings, schedules, and specifications across the product.
• Energy compliance, per home: produce and manage Title 24 compliance documentation for each home, coordinate HERS rater verification, and manage submissions through state and