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Ivica Bogosavljevic
Verified Expert in Engineering
Embedded Systems Developer
Belgrade, Serbia
Toptal member since July 30, 2021
Bio
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.
Portfolio
Johny's Software Lab
Performance Tuning, Performance
Syrmia
C++, Performance Tuning, Hardware Drivers, Linux, Make (formerly Integromat)
RT-RK
C++, Compilers, Google V8, MIPS
Experience
- Embedded Systems - 7 years
- C - 7 years
- Linux - 7 years
- GCC - 6 years
- C++ - 6 years
- Performance - 5 years
- Clang - 4 years
- Performance Tuning - 2 years
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
Syrmia
- 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 (formerly Integromat)
Senior Software Developer
2015 - 2018
RT-RK
- 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
Experience
Parallelware Analyzer
http://www.appentra.comParallelware 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
http://johnysswlab.comJohny'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.
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.
Education
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
Skills
Tools
GCC, Git, CMake, GNU Make, Make (formerly Integromat)
Languages
C, C++, Embedded C, Embedded C++, C++11, C++17, MIPS
Platforms
Linux, Embedded Linux
Other
Performance Tuning, Performance, Clang, Embedded Systems, Software Development, Hardware Drivers, Compilers, Google V8, Linux Device Driver
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