Miklos Vajna

Budapest, Central Hungary

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Summary

🤩

Rockstar

Miklos Vajna is a consultant software engineer with 14 years of experience specializing in LibreOffice and Collabora Online backend and DevOps engineering. Based in Budapest, he has deep expertise in server-side performance, automated build tooling, and document-format handling, contributing significant fixes and features to widely used projects like Collabora Online and LibreOffice core. His work spans low-level C++ refactors, security-conscious server changes, and practical test automation—such as adding libfuzzer support and improving coverage tooling for Rust projects. Notably, he has improved clang tooling for C++ refactoring and implemented nuanced DOCX content control handling, showing a knack for bridging language tooling and complex document formats.

14 years of coding experience

Github Skills (30)

json-parser10

json10

c-language10

libreoffice10

cargo10

back-end-development10

testing10

jsonp10

open-source10

coverage10

parsing10

refactoring10

rust10

cpp10

cprogramming-language10

Programming languages (21)

JavaC++CSSBikeshedRustCSWIGM4

Github contributions (5)

LibreOffice/core

Nov 2018 - Jan 2023

Read-only LibreOffice core repo - no pull request (use gerrit instead https://gerrit.libreoffice.org/) - don't download zip, use https://dev-www.libreoffice.org/bundles/ instead

Role in this project:

Back-end Developer

Contributions:4047 commits in 4 years 3 months

Contributions summary:Miklos focused on enhancing the LibreOffice core repository by implementing features related to content controls, particularly the import, export, and handling of plain text, dropdown, and date controls in the DOCX format. Their work involved extending the dmapper, writerfilter, and XHTML export functionalities to accurately represent these content controls, ensuring proper handling and visual representation of text, options, and dates within the document. The contributions also included fixes for incorrect rendering and layout issues in the exported documents.

gerritlibreofficetdf

CollaboraOnline/online

Oct 2020 - Nov 2022

Issue tracker only. Active development is on Gerrit at https://gerrit.collaboraoffice.com/.

Role in this project:

Back-end Developer & DevOps Engineer

Contributions:539 reviews, 166 commits, 666 PRs in 2 years 1 month

Contributions summary:Miklos primarily contributed to the back-end aspects of the Collabora Online project, specifically focusing on the server-side code. Their work involved optimizing code using standard library functions like `std::any_of()`, handling combined tile requests, and addressing potential issues like uninitialized reads and null pointer dereferences. Additionally, the user demonstrated expertise in DevOps by automating the enablement of Git hooks during the build process. They also addressed bugs and added improvements to the codebase, and added a libfuzzer.

gerritlibreofficeproductivityjavascriptcpp

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