Przemysław Uznański
Data Structures And Optimization Expert
Wrocław, Lower Silesian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolPrzemysław Uznański is a Data Structures and Optimization expert with seven years of industry experience and a PhD in Computer Science, blending academic rigor with production-grade engineering. He designs scalable algorithms for massive data processing, graphs, text, and bioinformatics, and focuses on massively parallel computing and ML-oriented algorithms. Fluent in C++ and Python, he contributes to notable open-source projects—improving numerical and date/time functions in the widely used HyperFormula engine and optimizing core ETL primitives in the Pathway stream-processing framework. His background spans postdoctoral research at top European institutions and roles building real-time learning systems, reflecting a rare mix of theoretical depth and hands-on distributed-systems delivery. Colleagues rely on him for mathematically grounded optimizations that translate directly into measurable performance gains.
7 years of coding experience
8 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at University of WroclawPhD, Computer Science, PhD, Computer Science at Université de Bordeaux
Github Skills (19)
javascript10
data-pipelines10
python10
statistics10
stat10
statistic10
math-functions10
etl10
data-processing10
stream-processing10
data-pipeline10
datetime-parsing9
datetime9
trigonometry9
date-parsing9
Programming languages (5)
Github contributions (5)
handsontable/hyperformula
Jan 2020 - Oct 2021
HyperFormula is an open-source headless spreadsheet for business web apps. It comes with over 400 formulas, CRUD operations, undo-redo, clipboard support, and sorting.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:289 reviews, 311 commits, 193 PRs in 1 year 9 months
Contributions summary:Przemysław primarily contributed to the development and implementation of mathematical and statistical functions within the HyperFormula project. They added new functions, implemented trigonometric functionality, and addressed aspects of date and time parsing. Their contributions focused on improving and expanding the numerical capabilities of the spreadsheet calculation engine.
reactformulasjavascriptperformancecrud
pathwaycom/pathway
Dec 2022 - Dec 2022
Python ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.
Role in this project:Data Engineer
Data EngineerContributions:1 commit, 1 push, 10 comments in 1 day
Contributions summary:Przemysław primarily contributes to the Pathway framework, focusing on the core functionality of data processing and ETL pipelines. They are involved in enhancing the `iterate` function, which likely involves defining and refining data processing steps. The user is also involved in modifying code related to indexing and sorting, indicating a focus on data manipulation and optimization within the framework. Their work includes refactoring, code cleanup and implementing features related to data transformation and data pipelines.
batch-processingdata-analyticsdata-pipelinesdata-processingdataflow
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