Description: We need an experienced mechanical/product design engineer to design a manufacturing-ready (DFMA) IP67 enclosure and rugged external harness for a compact electronic device operating in dusty/humid environments, 0–50°C, and handled ruggedly. 1. Enclosure: - Target IP67 - Approx internal usable size: 70 x 40 mm - Power LED visible from outside (sealed lens/light pipe/window) - External ON/OFF switch while maintaining IP67 - Robust internal retention for PCB + battery 2. Harness: - 8 wires, approx 4 cm - One side to PCB inside enclosure; other side external with: USB-C charger, DC male power plug, 2 LEDs - Must withstand 10–20 connect/disconnect cycles per day - Provide rugged PCB connector + strain relief + IP67 cable entry (gland/grommet/overmold) 3. Additional requirements: mechanical feedback on PCB design (connector placement, keep-outs, assembly, sealing). 4. Deliverables: CAD (native + STEP), BOM, drawings (as needed), harness pinout/wiring, assembly/sealing notes, DFMA notes, PCB feedback memo. 5. Mandatory with bid: portfolio of similar IP67/IP68 enclosures, 2 references, proposed sealing approach, timeline + fixed price (or hourly + estimated hours).