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Warning Engineering

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Sofia, Bulgaria
Electronics, firmware, mechanical design and production for hardware products, from Sofia, Bulgaria.
Warning Engineering is a hardware product development company in Sofia, Bulgaria. We take electronic products from an idea to a production run: electronics design (schematic, PCB layout, DFM review, BOM sourcing), embedded firmware, industrial and mechanical design in Fusion 360, and prototyping by CNC machining and 3D printing. For production we cover PCB fabrication, PCB assembly (PCBA), injection moulding and CNC, plus companion mobile apps and EMC testing. What we build: smart wearable devices, IoT devices, car sensors, industrial automation electronics, e-bikes, sensor systems and small consumer electronics. Our firmware work runs bare-metal and RTOS (FreeRTOS) on ARM, STM32, ESP32 and AVR, with BLE/WiFi/LoRa stacks, bootloaders, OTA updates and Linux BSP bring-up. How we work: one team and one point of contact from the first sketch to the delivered batch, so the seams between electronics, firmware, mechanics and manufacturing are our problem, not the client's. Firmware starts in parallel with the board, not after it. We treat certification as a design input rather than a final step, and we would rather hear the problem than a finished spec. Clients include Scania and Karcher alongside startups building their first product. Bring us the problem, and we will tell you honestly what it takes to ship it.
11 people in their team
Speaks English, Bulgarian
Sortlist member since 2026
Founded in 2022
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4 services offered by Warning Engineering

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  • Description
    Hardware product development from idea to production: electronics (schematic, PCB layout, DFM review, BOM sourcing), mechanical design in Fusion 360, prototyping by CNC and 3D printing, then PCB fabrication, PCBA, injection moulding and CNC for the production run. Smart wearables, IoT devices, car sensors, industrial automation electronics, e-bikes, small consumer devices. One team, one point of contact.

    Learn more about Innovation


  • Description
    Industrial and mechanical design in Fusion 360: enclosures, IP-rated housings, design for injection moulding, extrusion and sheet metal. Print to learn, machine to prove: FDM/SLA models in hours, CNC-machined functional parts in aluminium, steel, brass, PEEK or Delrin, often within 72 hours.

    Learn more about 3D


  • Description
    Companion apps for connected hardware: BLE and WiFi pairing, device provisioning, telemetry dashboards, OTA firmware delivery. Built by the same team that writes the firmware, so the app and the device are designed together.

    Learn more about Mobile App


  • Description
    Embedded firmware for hardware products: bare-metal and RTOS (FreeRTOS) on ARM, STM32, ESP32 and AVR. Bootloaders, drivers, BLE/WiFi/LoRa stacks, OTA update systems, Linux BSP bring-up. We start firmware in parallel with the board design, not after it, so the first prototype already runs real code.

    Learn more about Software Development

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11 members in Warning Engineering's team

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  • Headquarterул. „20-ти април“ 13, София, Bulgaria