Project: in a medical / health domain, an intelligent and advanced teeth care (refer to company page)

? Implemented different firmware functionalities

? Secure boot and secure firmware update, MCUboot and TFM in STM32, Trust Zone functionalities, multiple MCUs firmware update orchestration, over different interfaces (CAN, USB), custom loader over CAN, web server and application to perform firmware update

? Porting applications to TFM, secure and non-secure application split

? Time synchronization over CAN / Cyphal, timers, motor control, ADC, I2C, PWM, WDT, CAN communication, bare metal implementation, Azure RTOS ThreadX

? Test environment based on Raspberry Pi, python, CI/CD, docker container

? Used C, STM32CubeIDE, STM32U5xx, Cortex M33, Trust Zone, TFM, MCUboot library, custom board, STM32 HAL library, Cyphal, yakut, GNU toolchain, docker, python, fask, flask-socketio, STM link, Peak CAN tool, Agile, Scrum, git, Jira, Confluence

Project: Dialock ? Terminal firmware

? Access systems ? door and cabinet locks, RFID cards / tags based access terminals

? Worked on different project parts, migration to new libraries

? Used Nordic Semi nRF52840 (32-bit ARM Cortex-M4 SoC), custom board

? Implemented BLE communication using nimBLE library as an alternative to nRF BLE SoftDevice, drivers BLE, I2C, SPI, UART, RTC, PWM, RFID, ADC; OpenThread, firmware upgrade from bare metal nRF5 SDK to RTOS / Zephyr; current consumption measurements, unit tests, documentation. All implementations reflecting low power consumption aspects

? Used C, python, nRF5 SDK, Nordic Connect SDK, Zephyr, FreeRTOS, Visual Studio Code, Keil uVision, git, cmake, Segger Embedded Studio, GNU toolchain, python, git, J-link, nRF toolbox, Segger tools, Agile, Scrum, Jira, Confluence

Project: Hydrostasis hydration sensor (IoT, refer to the company page)

? An IoT device measuring human body hydration

? Designed and implemented firmware, communication with mobile app and cloud, reviewed hardware design

? Used Nordic Semi nRF52832 (32-bit ARM Cortex-M4 SoC), u-blox BMD-350, custom board

? Implemented communication with mobile app over BLE, OTA DFU, secure bootloader, Maxim 86171 (Optical pulse oximeter and heart-rate sensor AFE for wearable health) measurements, I2C, SPI, RTC synchronization, battery charging, power management, tests. Documentation. All implementations reflecting low power consumption aspects.

? Used C, python, nRF SDK, git, Segger Embedded Studio, GNU toolchain, python, git, Ubuntu, J-link, nRF toolbox, Segger tools, Agile, Scrum, Jira, Confluence, FDA regulation IEC 60601, functional safety, UML, CMMI

? Two devices driven by nRF MCUs, measuring pressure and temperature, voltages, WPC (Wireless Power Charging) modules, communicating via BLE, setting up TX power, measuring RSSI, indicating pressure values via LED modules. Third device used for testing, monitoring and OTA DFU.

? Designed and implemented firmware, communication with other modules, reviewed hardware design

? Used Nordic Semi nRF52833 (32-bit ARM Cortex-M4 SoC), u-blox NINA-B406, custom boards

? Defined device tree for the boards and devices

? Implemented communication with other modules over BLE long range, OTA DFU, secure bootloader, drivers, RTOS, I2C and SPI devices, Renesas WPC, pressure sensing, power management, tests, documentation. All implementations reflecting low power consumption aspects.

? Used C, Zephyr, nRF Connect SDK, Visual Studio Code, Google protocol buffer, Cmake, Ubuntu, VMWare, python, git, GNU toolchain, J-link, nRF toolbox, Segger tools, Agile, Scrum, Jira, Confluence, UML, CMMI

? Multi SIM card reader ? one board solution

? Realized a complete hardware design, schema, PCB layout (Eagle), production and assembly

? Used Microchip SAME53N20A (32-bit ARM Cortex-M4 MCU), custom board

? Designed and implemented firmware, integrated communication with server (PCSC library, Ubuntu)

? Implemented USB (Smart card, CDC, DFU interfaces / functions) and ethernet interfaces, I2C, bootloader; DFU, threads, SIM communication logging on the server (USB console), functions of ISO7816 standard, TCP/IP, tests, documentation

? Used C, FreeRTOS, python, git, MPLAB-X, GNU toolchain, J-link, MISRA C,, Ubuntu, Segger tools, Wireshark, Eagle, KiCAD, Agile, Scrum, CMMI

? Successfully deployed at customer ? used as part of a larger system (eNodeB simulator)

? Maintained a unit for control of drone special use (staying in a fixed position in space, with communication RF antenna mounted, military use)

? Used STM32, STM32CubeMX, ADC/DAC, CAN, UART, USB, python, git

? Realized complete production preparation ? PCB, BOM, special parts, production details, logistics, packaging

? Negotiated unit price and production cost with customer and production unit

? Kegg, an IoT device ? woman fertility tracker

? Designed and implemented firmware, communication with mobile app and cloud, with test jig

? Used Nordic Semi nRF52832 (32-bit ARM Cortex-M4 SoC), custom board

? Implemented communication with mobile app over BLE, DFU OTA, secure bootloader, UART, PWM, ADC measurements, battery charging, power management, tests, documentation. All implementations reflecting low power consumption aspects.

? Used C, nRF SDK, python, Google protocol buffer, git, Eclipse, GNU toolchain, python, Ubuntu, J-link, nRF toolbox, Segger tools, Agile, Scrum. FDA regulation IEC 60601, functional safety, UML, CMMI

? 40.000+ women using the tracker around the world

? Analysed CPRI C&M channels of Huawei and Alcatel Lucent vendors

? Advised in FPGA IP core implementation, communicated with Xilinx support team support cases

? Managed eNodeB simulator requirements collection, design, implementation, deployment and acceptance.

? Negotiated with customers details and progress of the projects

? Started as a software engineer implementing telecom protocols

? Received 6 months on site training at GN Nettest, A/S, Copenhagen, Denmark

? With company growing worked as a team leader, then project manager and finally as a director

? Built up company from size of 5 up to 95 employees

? Realized projects in Telecoms and Embedded Systems domains

? Worked for renowned customers like Vodafone, Orange, Alcatel-Lucent, BT, Lufthansa, Braun, Frequentis, 2N, Kobil, Anritsu, ?