Who we are
Industrial ESP32 hardware & firmware, engineered to ship
A boutique embedded lab
Based in Dhaka, Bangladesh, GizanTech is a tight-knit team of electrical engineers, firmware developers, and IoT architects. We aren't a massive outsourcing farm; we are a boutique lab dedicated to solving complex physical problems — the kind where a sensor sits in a field for three years and simply has to keep reporting.
Our work spans the full embedded stack: the circuit board, the firmware that runs on it, the wireless link, the cloud pipeline, and the dashboard an operator actually reads. Because one team owns all of it, the hard problems that usually fall between a hardware vendor and a software vendor land squarely with us.
What we do
Custom PCB design
Schematic capture, multi-layer layout, signal-integrity and DFM review, and handoff-ready Gerbers/BOM for industrial hardware that survives the field.
Production ESP32 firmware
ESP-IDF / FreeRTOS firmware with Secure Boot v2, flash encryption, OTA, and watchdog-backed fail-safety — not prototype sketches, but firmware built to ship.
Industrial IoT integration
Modbus/RS485 and CAN sensor integration, MQTT-to-cloud pipelines (AWS IoT Core), LoRaWAN and cellular telemetry, and InfluxDB/Grafana dashboards.
How we work
01
Boutique, not a body shop
A tight-knit team of electrical engineers, firmware developers, and IoT architects in Dhaka — you work with the people writing the code, not an account manager.
02
Field-failure first
Every design decision maps to a failure it prevents: brown-out resets, RS485 reflections, OTA bricking, antenna detuning. We design for the deployment, not the demo.
03
Own the whole stack
From the PCB and enclosure to the firmware, the cloud pipeline, and the dashboard — one team accountable end-to-end, so nothing falls between vendors.
Who we serve
We build for teams shipping physical products and deployed sensing systems across:
Curious about the bench behind the work? Visit our engineering lab · Browse real projects we have shipped