About Lumysi
Lumysi is a US-based wearable technology startup developing a jewelry-inspired health and fitness bracelet.
Our screenless wearable continuously tracks health, activity, sleep, recovery, and women’s health metrics while maintaining the appearance and comfort of a premium accessory.
The product combines embedded electronics, biometric sensors, Bluetooth connectivity, mechanical components, interchangeable straps, and a mobile application that transforms health data into personalized insights.
We are preparing the Lumysi wearable for scalable manufacturing and are looking for an experienced Hardware & Manufacturing Engineer to lead product validation, supplier coordination, hardware debugging, and new-product introduction activities.

The Role
As a Hardware & Manufacturing Engineer, you will help take Lumysi from advanced prototypes through engineering validation, pilot production, and mass manufacturing.
This is not a firmware development position. Your primary focus will be electronic hardware, validation, manufacturing readiness, supplier coordination,



production testing, quality, and issue resolution.
You will work directly with PCB manufacturers, component suppliers, assembly partners, testing laboratories, industrial designers, and contract manufacturers.
The role requires hands-on technical work and direct involvement during prototype and production builds. You must be willing and able to travel internationally to supplier and contract-manufacturer facilities when required.
The idóneo candidate has previously helped bring a connected electronic product from prototype into mass production and understands the technical and operational discipline required during EVT, DVT, PVT, pilot builds, and production ramp-up.

Responsabilities
Review electronic schematics, PCB designs, bills of materials, component specifications, and technical datasheets.
Support PCB bring-up, prototype assembly, and hardware debugging.
Identify and resolve electrical, mechanical

📌 Hardware & Manufacturing Engineer, NPI (México)
🏢 Lumysi
📍 México