Kiran K.

Embedded systems engineer with 12+ years shipping production hardware — from BLE wearables to industrial IoT to payment-integrated vending machines. 243 jobs delivered on Upwork at 100% success, backed by a small in-house team and a fully equipped PCB lab in India. I take hardware products from concept to production: firmware, PCB design, mechanical integration, and companion mobile/desktop apps — end-to-end, not just one slice. A few projects I've delivered: Smart Golf Ball — nRF52840, 9-axis IMU, custom circular PCB, BLE telemetry to iOS app. Full stack from silicon selection to app store. BudKoin Vending Machine (Jersey Airport) — ESP32-based controller with payment integration, remote monitoring, and stock management. Deployed and running in a live commercial environment. Silo Management System — multi-sensor industrial IoT for grain silo monitoring, LoRa backhaul, dashboards for operators. What clients tend to notice working with me: — In-house inventory of microcontrollers, sensors, and dev hardware means I start the day you hire me, not two weeks later once components arrive. — A dedicated bench and PCB lab for real hardware bring-up, not just simulation. — A small team I lead for firmware, PCB, and app work — so timelines don't stretch when a project needs parallel effort. — Clear, honest scoping upfront. If a project isn't a fit, I say so before you spend money. Tech I work with daily: nRF52/nRF53, ESP32/ESP-IDF, STM32, Raspberry Pi, FreeRTOS, Zephyr, BLE, MQTT, LoRa, Embedded C, KiCad, Altium. If you're building a hardware product — prototype, MVP, or production run — send an invite with a short description of what you're trying to make, and I'll tell you honestly whether I can help.