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sylwester sitkowski

@sylwestersitkowski

Embedded developer at Svitla Systems and across industrial projects; developed firmware for a safe-lock event-log module.

Poland

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At Svitla Systems, Inc, I developed firmware for a safe lock and implemented a module to store event logs for an audit trail. I also tested the software with Python tests that simulated a mobile application using a token.

At Fideltronik Poland Sp. z o.o, I worked on embedded software for STM32, ESP8266/32, and Azure Sphere devices. My projects included boiler control software communicating with the Azure Sphere cloud and a fiscal cash register communication module that stored sales invoices and sent copies to servers.

At „Bright Coders Factory”, I refactored and redesigned software for displays, including displays used on maritime defense ships, to support structural testing. I also selected processors for a VideoScaler based on client requirements.

In my current self-employment, I develop software for ESP32 devices under Free RTOS and create structural tests. I also design PCBs in KiCad and mechanical components in Blender.

Experience

Work history, roles, and key accomplishments

Current

Senior Embedded Developer/Electronics Designer

Current

Self-employment

Oct 2024 - Present (2 years)

Developed software for ESP32 in C++ under Free RTOS, designed PCBs in KiCad, and created mechanical components in Blender. Built projects including a spectral clock and a remote-controlled vehicle.

C++FreeRTOS ESP32 KiCad Blender Python PySide6 Google Test (Gtest)Gmock Git Linux

Python Automation Test Developer

Merops Automation LLC

Oct 2025 - Mar 2026 (5 months)

Created automation scripts in Python for EOL testing of radio boxes, mast rotators, operator boxes, and antenna boxes used in drone control for Ukraine. Also created technical documentation.

Python Git Gitlab Linux Ubuntu NixOS Testing Automation Technical Documentation

Senior Firmware Developer

Svitla Systems, Inc

Apr 2024 - Sep 2024 (5 months)

Developed firmware for NRF52840dk in C under Zephyr RTOS, created black-box tests in Python, and implemented a module for storing event logs for audit trail in a safe lock control system.

C Zephyr RTOS NRF52840 Python Black Box Testing Protobuf BLE Docker Git Gerrit

Embedded Programmer

Bright Coders Factory

Mar 2023 - Mar 2024 (1 year)

Developed software for LPCXpresso54S018 in C++ under Free RTOS, created structured tests using GTest and GMock, and refactored software for displays used on maritime defense ships.

C++FreeRTOS LPCXpresso MCU Expresso Google Test (Gtest)Gmock Git

Embedded Programmer

SolveQ

Feb 2022 - Jan 2023 (11 months)

Developed software for NRF52/STM32 modules in C under Free RTOS, created white-box tests using GTest, and refactored software for animal tracking and retractable step control for high-speed trains.

C FreeRTOS NRF 52x STM32 Eclipse Atollic Google Test (Gtest)Git

Embedded System Developer

Polish e-Payment S.A

Oct 2021 - Jan 2022 (3 months)

Developed software for STM32 microcontrollers in C under Free RTOS, created structured tests using GTest, and developed applications for Ingenico payment terminals including key upload and vending machine management.

C FreeRTOS STM32 Keil Google Test (Gtest)Git Ingenico

Embedded System Developer

Fideltronik Poland Sp. z o.o

Mar 2018 - Sep 2021 (3 years 6 months)

Developed software for STM32, ESP8266/32, and Azure Sphere MT3620 in C/C++ under Free RTOS, created structural tests using GMock/GTest, and worked on projects including building lighting, fiscal cash register communication, boiler control, and welding machine data collection.

C C++FreeRTOS STM32 ESP8266 ESP32 Azure Sphere Keil Eclipse Atollic SVN Git Google Test (Gtest)Gmock UART I2C WiFi Ethernet

System Engineer

Comarch S.A

Jun 2015 - Nov 2017 (2 years 5 months)

Developed software in C++ using Qt, developed for STM32 microcontrollers, performed troubleshooting and debugging, and created white-box tests using GMock and GTest. Worked on three tokens for secure bank transfers.

C++Qt Framework STM32 Eclipse SVN Git Jira Jenkins Gmock Google Test (Gtest)

Embedded Test Development Engineer

Jabil Circuit

Sep 2014 - May 2015 (8 months)

Developed software for MC9S12DP512 processors in C, created drivers for A/D converters, and ran peripherals such as GPIO, ADC, CAN, LIN, UART for automotive airbag control units and camera boards.

C Codewarrior LabWindows TestStand GPIO ADC CAN LIN Bus UART

Electronics Designer / Embedded System Programmer

WN Sp. z o.o

Nov 2013 - Jun 2014 (7 months)

Created electrical and PCB diagrams in Eagle, programmed BeagleBone Black in C++ using cross compilation, and worked on a device collecting power measurements for consumption analysis.

Eagle PCB Design BeagleBone Black C++Cross Compilation Aptana Studio

Test Engineer

SII Sp. z o.o

Mar 2012 - Oct 2013 (1 year 7 months)

Proofread, automated, and developed test scripts using TCL, prepared server platforms and test environments, performed functional, load, and regression tests, and debugged hardware issues for server boards.

Tcl Git ClearCase ClearQuest Testing Debugging Windows Linux

Education

Degrees, certifications, and relevant coursework

Gdańsk University of Technology

M.A., Electrical Engineering

2005 - 2011

Full-time M.A. studies in Electrical Engineering with a specialty in Power Electronics and Electric Drive. Thesis on a laboratory station with a parallel low-power active filter for reduced mains voltage.