Grzegorz Rozdzialik
Senior Staff SDE I at EDB
Lublin Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolGrzegorz Rozdzialik is a Senior Staff frontend engineer with 11 years of experience building highly responsive, interactive web applications, currently leading frontend efforts at EDB. He specializes in React and TypeScript but has broadened his toolkit to include Go and Rust, reflecting a growing interest in systems-level and backend work. Grzegorz has a strong track record in improving developer ergonomics—evidenced by contributions to the high-profile DefinitelyTyped repo where he enhanced react-table type definitions and tests to strengthen type safety and ref handling. His career spans startups and established firms (Splitgraph, CodiLime, Samsung), giving him experience shipping product-facing UI features at scale. Based in Lublin, Poland, he combines formal computer science training from Warsaw University of Technology with a practical, cross-disciplinary curiosity that drives both polished UIs and safer developer tooling.
11 years of coding experience
8 years of employment as a software developer
Matematyka-fizyka-informatyka, Matematyka-fizyka-informatyka at I Liceum Ogólnokształcące im. Stanisława Staszica w LublinieMagister inżynier (Mgr inż.) Informatyka Stosowana, Magister inżynier (Mgr inż.) Informatyka Stosowana at Warsaw University of Technology
Polish, English, German
Stackoverflow
785reputation
22kreached
37answers
2questions
Github Skills (20)
build-definition10
typescript10
react-table10
typescript-definitions10
type-definition10
type-system10
dictionary10
react-table-v710
typescript-types10
typescripts10
react10
html6
fp-ts6
php6
angularjs6
Programming languages (20)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Dec 2017 - Dec 2018
The repository for high quality TypeScript type definitions.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:12 reviews, 11 commits, 3 PRs in 11 months
Contributions summary:Grzegorz focused on enhancing the type definitions for the `react-table` library within the `definitelytyped` repository. They added and modified type definitions for various components and HOCs, including `selectTableHOC` and `treeTableHOC`. The user also implemented tests for these HOCs and addressed issues related to component props and ref usage. This work aimed to improve the type safety and developer experience for projects using `react-table`.
typescript-definitionstype-definitionshigh-qualitydtsdefinitions
Gelio/tslint-import-group-ordering
Aug 2018 - Aug 2021
TSLint rule for ordering import groups
Contributions:3 releases, 94 commits, 10 PRs in 3 years
groupsorderingeslintruletslint
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