Ondrej Polanecky
Software Engineer
focused on performance and distributed systems
Experience
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Quantitative Developer - AVP
July 2025 - PresentBarclays
C++ developer working on securitized products.
C++ HPC SIMD -
Software Engineer
September 2021 - May 2025CDN77
Research and management of Ceph clusters and distributed storage solutions. Developed a logging tool that sniffs the cephfs journal in C++. Worked on an NGINX fork in C and Lua. Development of new NGINX modules and profiling/debugging.
C/C++ Lua NGINX Ceph Distributed Systems -
Junior C++ embedded developer
July 2021 - September 2021Netio products a.s.
Developed and debugged new features for smart power sockets using the ESP32 platform. Implemented features such as device network health check or logging of runtime statistics.
C++ Embedded Systems ESP32 -
Junior Python backend developer
July 2020 - July 2021Netio products a.s.
Designed and developed internal management tools in Flask. Wrote SQL queries for graphical data visualization and presented insights via web-based dashboards.
Python Flask SQL Web Development
Education
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Computer Systems and Networks
Sep. 2024 - Presentmaster's degree
Faculty of Informatics Czech Technical University in Prague
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Software Engineering
Sep. 2021 - Jun. 2024bachelor's degree
Faculty of Informatics Czech Technical University in Prague
Projects
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Sharing of HTTP cache between webservers
My bachelor's thesis focused on improving cache performance of web servers in a multilayer setup.
LinkC Bloom Filters Lua Web Servers Distributed Cache -
Chess engine
Graduation project from high school. Bitmaps, Transposition tables, Alpha-Beta pruning. Created custom GUI and key-value file database of moves.
GitHubC++ Engine Databases AI High School Project