Mojmír Vinkler
Data Engineer
Brno Metropolitan Area Czechia
Summary
🤩
Rockstar🎓
Top SchoolMojmír Vinkler is a data engineer with 12 years of experience building ML-driven products, ETL pipelines and analytics platforms across startups and scale-ups, currently shaping data infrastructure at Our World in Data from Brno. He blends academic rigor—a PhD-level background in probability and statistics—with hands-on engineering, having led data science teams at Kiwi.com and served as an AI engineering director at IQVIA. Mojmír is comfortable across the stack, contributing to high-profile open-source projects like owid-grapher (admin and backend enhancements) and algorithmic finance tooling (universal-portfolios), where he improved robustness and added transaction-cost-aware optimizations. He’s equally adept at productionizing models and improving data workflows, and often focuses on practical fixes that increase long-term usability of codebases.
13 years of coding experience
10 years of employment as a software developer
MBA, Prague, MBA, Prague at University of SeattleDoctor of Philosophy (PhD), Probability, Statistics and Mathematical Modelling, Doctor of Philosophy (PhD), Probability, Statistics and Mathematical Modelling at Masaryk University Brno
English
Github Skills (34)
algorithm10
algorithms10
back-end-development10
python10
pandas10
typescript10
machine-learning10
mathematical10
data-structure10
optimisation10
typescript-types10
data-structures10
typescripts10
react10
modeling10
Programming languages (11)
Github contributions (5)
Marigold/universal-portfolios
Feb 2014 - Oct 2022
Collection of algorithms for online portfolio selection
Role in this project:
Backend Developer
Backend DeveloperContributions:21 reviews, 57 commits, 28 PRs in 8 years 9 months
Contributions summary:Mojmír made several commits focused on refining and enhancing the functionality of the universal-portfolios library. The commits included adding new metrics, fixing bugs related to empty lists and zero values, and implementing methods for saving and loading results objects. A notable contribution was the integration of a transaction costs optimization (TCO) algorithm and python3 compatibility fixes, which indicate a focus on improving the core algorithms and ensuring the library's usability and longevity.
owid/owid-grapher
Jun 2022 - Jan 2023
A platform for creating interactive data visualizations
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:83 reviews, 16 commits, 265 PRs in 7 months
Contributions summary:Mojmír's commits primarily focused on enhancing the admin interface and backend data handling for the `owid-grapher` project, which is a platform for interactive data visualizations. They made significant contributions to the admin panel by adding new features, such as a fast-track redirect, and modifying existing functionalities, including the exclusion of archived datasets. Furthermore, the user added database migrations to extend the data model and support new functionality. These changes, along with modifications to API endpoints and data reading processes, indicate a broad involvement in both frontend and backend development.
data-visualizationdata-visualizationsreacttypescript
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