Senior Mechanical Engineer

American Innovations helps customers keep their field operations running — our technology and support teams are the front line for the people who rely on our products and services every day. We're looking for people who take ownership, communicate clearly, and enjoy solving problems for others.

As Senior Mechanical Engineer, you'll be the mechanical owner of how our Bullhorn RMUs, Micro Max interrupters, and DVM instruments look, mount, seal, and last in the field. This is a senior individual-contributor role: you'll own new-product mechanical architecture and approve production tooling end-to-end, without a second mechanical engineer in the review. A cracked or leaking housing, a unit that won't fit a rectifier cabinet, or a battery door that fails outdoors is a gap in this role — so you'll balance industrial design, field installability, and long-term reliability so a customer's first physical impression of our hardware matches its quality.

• Own mechanical architecture for next-generation IoT hardware across our Bullhorn rectifier RMUs, test-point/AC coupon RMUs, Micro Max interrupters, and field instruments (DVM)
• Design plastic housings, covers, adapters, battery compartments, antenna windows, and user-facing features that protect electronics in outdoor, rectifier-cabinet, and right-of-way environments (UV, dust, rain, heat, vibration, surge-adjacent installs)
• Create 3D concepts and production-intent models that package PCAs, cellular/satellite radios, GPS, batteries, shunts, relays, and connectors into compact, installable products, including pole/test-station mounts and in-rectifier installs
• Produce complete mechanical design records — CAD models, production prints, GD&T, tolerance stack-ups, BOMs, and revision control — for new products and sustaining changes
• Lead design-for-injection-molding: draft, wall thickness, ribs/bosses, knit lines, gate/ejector strategy, inserts, seals/gaskets, and snap/latch features for industrial, outdoor-rated housings
• Drive tooling from DFM through first-article approval: review mold designs with toolmakers, close dimensional and cosmetic issues, and release production-capable tools as the final mechanical approver on new-product tooling
• Partner with Purchasing, contract manufacturers, and molders to hit cost, lead time, and quality targets, feeding DFM input in early so new products are manufacturable at scale
• Plan and execute mechanical verification and validation for harsh-environment IoT hardware: thermal, humidity, UV, ingress, shock/vibration, drop/abuse, and HALT as needed, including fit/function with PCA, antenna, and battery systems
• Design for measurement integrity and safety — surge-hardened installs, connector strain relief, creepage/clearance keep-outs, and service access that doesn't compromise the seal
• Support UL/TUV/FCC/safety documentation with mechanical evidence: materials, ratings, labels, and enclosure drawings
• Translate field and Technical Support feedback — install pain points, water ingress, cracked housings, battery door issues — into durable design changes, not one-off fixes
• Act as technical owner for new-product mechanical design: review and approve CAD, prints, test plans, and production Zeadiness
• Integrate closely with Electrical, Firmware, Product Management, Operations, and Purchasing so PCA outline, RF keep-outs, thermal paths, and assembly sequence are locked before tooling is cut
• Contribute mechanical deliverables — design records, DFMEA input, prototype plans, and phase-exit evidence — to formal new-product development gates
• Maintain mechanical BOMs, part numbers, and configuration under change control, coordinating with Operations so builds and production transfer aren't blocked by missing…