Specialized Multi-Mode Switch Design

I need an electronics specialist to design a compact switch that lets the user select between several operating modes on a new consumer-grade device. Besides the regular mode-select function, the switch must actively monitor continuity: if the current path opens or a lead fails, an audible alarm should sound immediately.

Key points to keep in mind
• Device category: small consumer electronic, so footprint, cost and aesthetics matter.
• Operation: discrete positions for each mode (rotary or tact design is fine) with clear tactile feedback.
• Safety layer: realtime current-sense or line-monitor circuit that drives a buzzer whenever the line breaks, powered from the same low-voltage rail. No false positives.
• Deliverables: schematics (Altium, KiCad or equivalent), PCB layout, BOM with off-the-shelf components, and a short test procedure I can follow to verify alarm behaviour. A 3-D switch cap model (STEP) would be a plus for enclosure integration.

I will handle enclosure fabrication and final assembly; I only need the fully engineered switch module ready for prototype manufacture and assembly files. If you have relevant consumer-device experience and are comfortable balancing size, cost and reliability, I’d love to see how you would approach this.