Tomislav Radanović
Verified Expert in Engineering
Embedded Systems Developer
Solin, Croatia
Toptal member since February 11, 2020
Tomislav is a skilled professional with eight years of expertise in designing, implementing, documenting, and maintaining complex embedded systems from conception to production. His approach combines deep technical proficiency with a keen focus on optimizing system performance and reliability, delivering solutions that meet stringent requirements. Tomislav excels in technical problem-solving and collaboration, ensuring projects are delivered on time and within budget.
Portfolio
Experience
- C - 9 years
- Embedded Systems - 8 years
- Embedded Hardware - 7 years
- Microcontrollers - 7 years
- Embedded Software - 7 years
- Internet of Things (IoT) - 6 years
- Linux - 6 years
- Real-time Operating System (RTOS) - 5 years
Availability
Preferred Environment
Agile, Git, Slack, Visual Studio Code (VS Code), Linux
The most amazing...
...product I've worked on is a radio interface control system used in 4G (LTE) and 5G (NR) network providers to monitor connections for billions of mobile devices.
Work Experience
Senior Software Engineer
Cruise
- Wrote early development firmware versions of autonomous delivery devices with three other senior engineers. This version implemented MVP functionality enough for early evaluation board testing.
- Scaled up autonomous delivery project code infrastructure, onboarded several software engineers, and communicated with product teams to refine project requirements. This resulted in record time-to-market from zero code to production in eight months.
- Introduced Zephyr real-time operating system (RTOS) to the organization and acted as a go-to person for technical questions. It allowed other teams and projects to use the open source RTOS instead of paid solutions.
- Wrote several generic Linux and Zephyr RTOS drivers for use in existing and future projects.
- Rewrote legacy bare-metal applications using modern build and static/dynamic analysis tools. The application was stable, without any functional or safety incidents until its retirement 1.5 years later.
Senior Firmware Engineer
Fjorden
- Developed Fjorden Grip firmware and bootloader using Zephyr RTOS.
- Exposed device functionality over Bluetooth Low Energy (BLE) interface.
- Implemented secure over-the-air (OTA) device firmware upgrade (DFU) to allow customers to update their firmware.
- Expanded device battery life to approximately six months on standard coin cell battery by utilizing nRF52 SoC low power features.
Senior Firmware Engineer
Sense
- Developed and tested nRF52 firmware using Zephyr RTOS in C programming language.
- Optimized the firmware for low power operation resulting in battery-powered mode to last for approximately eight months of continuous operation.
- Implemented BLE mesh networking between peer devices, allowing simpler on-site installation with minimal use of data and power cables.
- Used oscilloscope, logic analyzer, and multimeter to trace and debug board-level issues, thus shortening the time between board iterations.
Embedded Software Engineer
Ericsson
- Collaborated on the development, testing, integration, and delivery of essential features that impacted WCDMA, LTE, and NR networking modes of the radio interface control software.
- Pioneered multiple product-wide codebase refactoring, improving testability and reducing complexity, which contributed to a 70% drop in bug reports over a period of three months.
- Designed and implemented a custom containerization engine used for efficient virtualized component testing of critical software modules.
- Transferred knowledge and experience by performing extensive code reviews.
- Held multiple department lectures to educate coworkers about best practices.
- Performed technical screening for hundreds of job candidates.
Software Engineer
Trovicor
- Improved deep packet inspection engine capabilities by designing and implementing multiple classification and extraction algorithms.
- Expanded the organization's internal knowledge base by reverse engineering over 20 application-level network protocols.
- Performed targeted network traffic interception in a controlled environment.
Experience
Path Processor
https://github.com/TommyRadan/PathProcessorHydrocontest
https://www.hydrocontest-x.ch/Education
Master's Degree in Computer Science
University of Split - Split, Croatia
Bachelor's Degree in Computer Science
University of Split - Split, Croatia
Technician's Diploma in Electronic Engineering
Electrical Engineering School in Split - Split, Croatia
Skills
Libraries/APIs
POSIX
Tools
Zephyr, CMake, GNU Toolchain, MQTT, AutoTools
Languages
Embedded C++, C, C++, Embedded C
Platforms
Arduino, Bluetooth Low Energy (LE), Linux, Raspberry Pi, Docker, Embedded Linux
Frameworks
Google Test
Paradigms
Test-driven Development (TDD), Object-oriented Design (OOD)
Industry Expertise
Telecommunications
Other
Real-time Embedded Systems, Embedded Hardware, Embedded Systems, Internet of Things (IoT), Microcontrollers, Real-time Operating System (RTOS), Embedded Software, Firmware, Software, Bluetooth, ARM, ESP32, Nordic nRF52, ARM Embedded, Multithreading, TCP/IP, Robotics, GNU, Protocol Buffers, Wireless Protocols, CNC, Reverse Engineering, Embedded Controllers, Hardware, Electronics
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