Ivica Bogosavljevic, Developer in Belgrade, Serbia
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Ivica Bogosavljevic

Verified Expert  in Engineering

Embedded Systems Developer

Belgrade, Serbia
Toptal Member Since
July 30, 2021

Ivica is a senior software engineer with 10 years of experience in the domain of Linux and bare-metal-based embedded systems. His professional focus is application performance improvement — techniques used to make your C/C++ program run faster by using better algorithms, exploiting the underlying hardware, and using the standard library, programming language, and operating system. Ivica is also a writer for a performance-related tech blog.


Johny's Software Lab
Performance Tuning, Performance
C++, Performance Tuning, Hardware Drivers, Linux, Make
C++, Compilers, Google V8, MIPS




Preferred Environment

Linux, Git, GCC, Clang, CMake, GNU Make

The most amazing...

...thing I've achieved is speeding up an image processing algorithm used for feature extraction in machine learning eight times compared to its original version.

Work Experience

Application Performance Specialist

2020 - PRESENT
Johny's Software Lab
  • Conducted the performance analysis and performance tuning for several different codebases in the domain of scientific computing, video processing, speech recognition, and image processing.
  • Helped set up functionality requirements for Parallelware Analyzer, a tool that helps their users achieve the maximum performance of their C/C++ codebase through parallelization and vectorization.
  • Wrote several blog posts targeted at developers that explain various ways of doing performance optimizations for C and C++ programs.
Technologies: Performance Tuning, Performance

Senior Software Developer

2018 - 2020
  • Served as the engineering manager for a small team of five in charge of the CISCO Silicon One networking chip infrastructure team.
  • Implemented various features related to infrastructure, including low-level development and optimizations of the driver, configuration, and optimization of the Linux environment the driver is running.
  • Performed board bring-up on an FPGA chip simulator for the graphene chip.
  • Implemented a dedicated memory allocator that improved the performance of the driver so the driver could meet the performance requirements about the network route insertion into the routing table.
Technologies: C++, Performance Tuning, Hardware Drivers, Linux, Make

Senior Software Developer

2015 - 2018
  • Served as a developer and manager of a small team of five for Google's V8 JavaScript compiler MIPS port. Google V8 JavaScript compiler is a ubiquitous compiler part of the Chrome browser. MIPS is an HW architecture used in many embedded devices.
  • Oversaw the development of V8 features and performed the port to MIPS architecture.
  • Added support for MIPS revision 6, a new version of MIPS that is not backward compatible with earlier versions and includes many new features.
  • Added MIPS support for WASM. WASM stands for WebAssembly, a new web standard aimed for high-performance web applications.
Technologies: C++, Compilers, Google V8, MIPS

Parallelware Analyzer

Parallelware Analyzer is a static source code analysis tool aimed at developers which helps them speed up the performance of their code. I was working as an application performance specialist, analyzing various source bases, helping write functionality requirements for the tool, and producing blog posts describing various techniques for performance optimizations.

Software Blog — Johny's Software Lab

Johny's Software Lab is a software blog oriented at developers, teaching them techniques for writing fast and efficient code. I am the main maintainer of the site, and I write most of the articles. I run the experiments, perform the tests, and write the articles published on the site.

Cisco Silicon One Networking Chip | Infrastructure and Low-level Driver

Cisco Silicon One is the network routing chip by Cisco. I was the leader of the driver team in charge of the project's infrastructure. This included both management work (2-5 people) and development work in the domain of low-level driver development and optimization, configuration and optimization of the Linux environment the driver is running, and configuration of the testing infrastructure. I also configured parts of the system that are not directly related to the device, such as logging subsystem, task management, and device properties.

Google V8 JavaScript Compiler Port for MIPS Architecture

JavaScript compiler is part of Chrome web browser and maintained by Google. It is written in C++, but the back end of the compiler generates MIPS assembler, so knowledge of both assembler and C++ was needed.

Managed a team of 3-6 developers, including task allocation, communication with customers, external dependencies, SW development, and debugging.

List of patches: https://chromium-review.googlesource.com/q/owner:ibogosavljevic%2540wavecomp.com.


Performance Tuning, Performance, Clang, Embedded Systems, Software Development, Hardware Drivers, Compilers, Google V8, Linux Device Driver


C, C++, Embedded C, Embedded C++, C++11, C++17, MIPS


GCC, Git, CMake, GNU Make, Make


Linux, Embedded Linux

2007 - 2009

Master's Degree in Software System Engineering

RWTH Aachen University - Aachen, Germany

2003 - 2007

Bachelor's Degree in Software Engineering

University of Belgrade - Belgrade, Serbia

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