Jakiša Tomić, Developer in Berlin, Germany
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Jakiša Tomić

Verified Expert  in Engineering

Full-stack Developer

Berlin, Germany
Toptal Member Since
November 13, 2019

Jakiša has over 15 years of experience developing various types of apps for a range of operating systems. Most of his technical expertise is in C++ development, but he’s also comfortable working with JavaScript, C#, and Java. As for environments, he knows the ins and outs of working with the Windows API, embedded programming, and distributed systems and has a working knowledge of Linux/Unix systems, macOS, and mobile platforms (Android and iOS).


Toptal Client
Windows, Python, Networks, Back-end
Toptal Client
Documentation, Python, HTML, JavaScript, Docker, Back-end, Azure...
C++, C++20, Python 3, JavaScript, Back-end, TypeScript, Front-end, Mobile...




Preferred Environment

Git, Xcode, Visual Studio, MacOS, Linux, Windows

The most amazing...

...component I've worked on is the multi-language support for a GPS turn-by-turn navigation system.

Work Experience

Windows Developer

2023 - 2023
Toptal Client
  • Tested and diagnosed the issue with the existing software installation related to the Microsoft Access database connection.
  • Wrote the script that installs an appropriate driver based on the existing operating system and Microsoft Access database version.
  • Improved the error reporting to provide better diagnostics for possible future errors.
Technologies: Windows, Python, Networks, Back-end

Full-stack Engineer

2022 - 2023
Toptal Client
  • Wrote a Python test that prevents errors of orphaned documentation pages (which cannot be accessed from the documentation tree). In case of such errors, they would be spotted immediately instead of after deployment.
  • Maintained and improved existing Python extensions for the Sphynx documentation platform.
  • Worked on Python and shell scripts for documentation localization, including pre-processing and post-processing of localized HTML files.
  • Worked on integration of React-based API documentation into existing, static documentation tree.
Technologies: Documentation, Python, HTML, JavaScript, Docker, Back-end, Azure, Web Applications

Senior Full-stack Developer

2021 - 2022
  • Developed a platform-independent driver for Apple screen mirroring using C++.
  • Built a platform-independent driver for Google screencast in C++.
  • Created a JavaScript library for video annotations.
Technologies: C++, C++20, Python 3, JavaScript, Back-end, TypeScript, Front-end, Mobile, Web Audio, Videos

C++ Developer

2021 - 2021
Toptal Client
  • Developed a Windows Kernel driver for net filtering using C#.
  • Wrote critical filtering code in C++ using native Windows API.
  • Created the code that can be run both in the user space and kernel space to provide the client with a convenient testing environment.
Technologies: C++, Windows Kernel Drivers, Networks, C#, Back-end

C++ Developer

2020 - 2021
Toptal Client
  • Wrote wrappers for connectors to various database engines in C++.
  • Wrote functional tests in Python to catch the most common database errors in advance.
  • Solved various multi-threading issues with existing database connectors.
Technologies: C++, Python, Back-end

Go, React, and Android Developer

2020 - 2020
Toptal Client
  • Wrote back end for the fleet management software in Go.
  • Developed innovative heuristic algorithms for traveling salesman problem with multiple simultaneous routes.
  • Managed development of fleet management software in Go, Android, iOS, and React.
Technologies: Java, React Native, Android, React, HTML, CSS, Go, Docker, Back-end, Internet of Things (IoT), Cloud, Serverless, Architecture, Minimum Viable Product (MVP), Mobile Development, Front-end, Mobile, Web Applications, PostgreSQL, Figma

C++ Developer

2020 - 2020
Toptal Client
  • Improved the telemetry component, written in C++, by adding information needed for more useful results.
  • Found and fixed various bugs in the existing C++ software.
  • Wrote unit tests using Google Test framework for automated testing of the back-end components.
Technologies: C++, C++11, C++14, Subversion (SVN), Google Test, CMake, Jenkins, Back-end

Software Developer

2019 - 2019
  • Developed a PowerPoint plugin for chart representation, using C++.
  • Fixed issues related to Windows API messages using C++.
  • Solved portability issues caused by discrepancies between Windows and macOS versions of Microsoft Office.
Technologies: Windows, Git, Functional Programming, Front-end Development, C++17, C++, Office Add-ins, Front-end

Software Engineer II

2017 - 2018
  • Created Windows Mixed Reality scene hierarchy visualizations in various data formats, using C++.
  • Refactored an existing C++ class hierarchy for the infrastructural components in Windows Mixed Reality.
  • Worked on the component that transforms a design-time scene to a runtime scene (baking) using C++.
  • Developed partial baking: the concept that allows only changed scene parts to be transformed into the runtime.
  • Wrote a lightweight and maintainable XML creator in C++.
Technologies: Windows, Git, Concurrent Programming, C++17, Back-end Development, Mixed Reality (MR), C++, Qt, APIs, Back-end

Software Developer

2016 - 2017
Arista Networks
  • Participated in the creation of diagnostics components of network switches, using C++.
  • Wrote unit tests for network switches using Python.
  • Worked as a member of the DevOps team and monitored and maintained a continuous integration system.
  • Found and fixed various bugs in existing unit tests.
  • Enabled the Linux environment to use a visual code editor instead of traditional Vi/Emacs editors.
Technologies: Linux, Python 2, Embedded Software, Concurrent Programming, Embedded Systems, Back-end Development, Python, C++, Firmware, Embedded C, Embedded C++, System Integration, Embedded Development, Debian, Back-end

Senior Software Developer | Project Manager | Co-owner

2011 - 2016
Vorbion d.o.o.
  • Created the server-side part of the monitoring software for electronics production, using C#.
  • Built an internet-of-things server in C# and Microsoft SQL.
  • Wrote the specifications for a multi-purpose monitoring device.
  • Adapted Raspberry Pi to be used as a bridge between server and Bluetooth LE devices (used C++).
  • Developed a C++ back end for Nginx for the purpose of faster REST-full processing.
  • Created my own object-based scripting language in C++ as a portable language for front-end mobile development.
  • Wrote various smaller applications for third parties.
Technologies: Linux, Windows, HTML5, jQuery, Python 2, Python 3, AngularJS, Knockout (Knockout.js), Embedded Software, Microsoft SQL Server, iOS, Android, SQLite, Git, Parsers, Concurrent Programming, HTML, REST, Embedded Systems, Back-end Development, Full-stack, JavaScript, C++, C#, C, CSS, Node.js, Firmware, Embedded C, Embedded C++, OpenCV, GStreamer, Angular, TypeScript, .NET, OpenGL, Entity Framework, REST APIs, APIs, App Integration, Embedded Development, Debian, PHP, Embedded Hardware, Back-end, Internet of Things (IoT), Raspberry Pi, .NET Core, Cloud, Serverless, Architecture, Minimum Viable Product (MVP), Social Networks, Mobile Development, Front-end, Mobile, Web Applications, MySQL, Figma

Senior Software Developer

2004 - 2010
Mireo d.d.
  • Created the component that gave the correct directions for a turn-by-turn navigation system, using C++.
  • Built the component which matches GPS data with the road network, using C++.
  • Created a localization system for both spoken and written turn-by-turn navigation directions in C++ and an own scripting language.
  • Constructed a portable controls library, using C++.
  • Developed a server-client system that enables remote calling of C# methods from the client-side Javascript.
  • Implemented the correct grammar structure of spoken turn-by-turn directions in more than 30 spoken languages.
  • Implemented a driver for GPS tracking device in Java.
  • Developed the front-end part of four different turn-by-turn navigation software products.
  • Wrote various utilities to speed-up development in the company.
  • Led a four-member team for a year that developed a web-based fleet management system.
Technologies: Windows, Full-stack, Windows CE, jQuery, Embedded Software, Microsoft SQL Server, Xcode, Parsers, Concurrent Programming, HTML, Front-end Development, Embedded Systems, Back-end Development, Windows API, SQL, Java, JavaScript, C#, C++, CSS, .NET, App Integration, System Integration, APIs, Embedded Hardware, Back-end, Excel Add-ins, Visual Studio Tools for Office (VSTO), Web Scraping, Architecture, Minimum Viable Product (MVP), Mobile Development, Front-end, Mobile, Web Applications

Mireo via GPS

This is a type of navigation software, written in C++. The navigation sentences were assembled in a scripting language that I developed. I also created a matcher (the part that matches GPS location with road grid), advisor (the part that decides which advice will be given on each crossing), portable control library, and various other parts.

Mireo Fleet

Mireo Fleet is a type of fleet management software, written in C++ and C#. We also developed a later web-based version in JavaScript. I wrote drivers for particular tracking devices in C++, parts of dedicated client software in C#, and also led a team of junior web developers for the JavaScript part.

Mireo GElin

I created a showcase traffic map of Croatia, similar to Google Maps. I developed it in JavaScript and C# along with implementing my own API for remote function calling. I also developed both the server side and web application.

Universal Data Monitoring

I built a full internet-of-things solution for Vorbion. I developed the server-side in C#, the device software in C++ and Python, and the client application in C#. I also developed the server and device software.

Donkey Programming language

This is a programming language that I developed in my spare time. It is a general-purpose object-oriented scripting language but its usage has been limited so far. It is feature-complete and has all main object-oriented features implemented.

Windows Mixed Reality

I worked on the virtual reality engine infrastructure team in Microsoft Dublin's office. I mostly focused on baking (conversion from the design-time scene to the runtime scene). It was entirely developed in C++.

Latency Analyzer (LANZ)

Arista LANZ is a type of software that analyzes latency in network switches. I worked on the protocol port on the newly developed hardware version. It was written in C++ and Python. The work was performed exclusively in Linux terminal.


Python, Go, C++, C++17, JavaScript, C#, HTML5, HTML, Python 2, Python 3, Objective-C, C, CSS, Embedded C, Embedded C++, TypeScript, Java, SQL, PHP, Excel VBA, C++11, C++14


.NET, .NET Core, AngularJS, Knockout (Knockout.js), GStreamer, Qt, Angular, Google Test, React Native


Windows API, Node.js, OpenGL, Entity Framework, REST APIs, React, jQuery, Web Audio, OpenCV


Visual Studio, Xcode, Git, Logic Pro, Visual Studio Tools for Office (VSTO), Subversion (SVN), CMake, Jenkins, Figma


Concurrent Programming, REST, Mobile Development, Functional Programming


Windows, Debian, Raspberry Pi, Mobile, Linux, MacOS, Windows CE, Docker, Android, iOS, Azure


MySQL, Microsoft SQL Server, SQLite, PostgreSQL


Embedded Systems, Parsers, Front-end Development, Back-end Development, Full-stack, Embedded Software, Firmware, Data Engineering, Scripting, Reports, Office Add-ins, APIs, App Integration, Embedded Development, Back-end, Internet of Things (IoT), Cloud, Serverless, Web Scraping, Architecture, Minimum Viable Product (MVP), Social Networks, Front-end, Web Applications, System Integration, Excel Add-ins, Videos, Mixed Reality (MR), Mathematics, Computer Science, Electrical Engineering, Documentation, Windows Kernel Drivers, Networks, C++20, Embedded Hardware

2000 - 2006

Master's Degree in Mathematics and Computer Science

University of Zagreb - Zagreb, Croatia

1995 - 2000

Technician's Diploma in Electrical Engineering

Ivan Mestrovic High School - Drnis, Croatia