Krzysztof Mioduszewski
Director Of Software Engineering at Visa
Warsaw, Masovian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolKrzysztof Mioduszewski is a seasoned software engineering leader with 12 years of experience building and scaling search and telecommunications systems, now serving as Director of Software Engineering at Visa. He has progressed from hands-on roles in front-end and VAS engineering to technical leadership and management positions at Growbots and Allegro, where he led search engineering teams. His background in telecommunications (MSc, Warsaw University of Technology) informs a pragmatic approach to complex, latency-sensitive systems and integrations. An early contributor to Mozilla B2G’s Gaia UI—focused on NFC unit tests—he brings practical frontend testing discipline to large engineering orgs. Known for blending deep technical know-how with people leadership, he repeatedly translates research-grade ideas into production-ready services. Based in Warsaw, he combines strong domain expertise with a track record of growing teams and delivery at scale.
12 years of coding experience
14 years of employment as a software developer
Master of Science (MS) Electrical and Computer Engineering specialization: Telecommunications Systems and Networks, Master of Science (MS) Electrical and Computer Engineering specialization: Telecommunications Systems and Networks at Warsaw University of Technology
Github Skills (5)
nfc10
unit-testing10
javascript10
html9
user-interface9
Programming languages (4)
Github contributions (5)
mozilla-b2g/gaia
Apr 2014 - Jun 2015
DEPRECATED - Gaia is a HTML5-based Phone UI for the Boot 2 Gecko Project. NOTE: For details of what branches are used for what releases, see
Role in this project:
Front-end Developer
Front-end DeveloperContributions:52 commits, 14 PRs, 30 comments in 1 year 1 month
Contributions summary:Krzysztof primarily contributed to the `gaia` repository, which focuses on the HTML5-based Phone UI for the Boot 2 Gecko Project. Their work focused on unit tests for NFC manager features and related code. The contributions demonstrate a focus on testing and implementation of various NFC functionalities within the user interface, indicating expertise in frontend development within the project's scope.
branchesphonejavascriptgaiahtml5
tauzen/SecureElement-v0.1
Oct 2014 - Feb 2015
Contributions:3 releases, 185 commits, 89 pushes in 4 months
prototypejavascripttypescriptimpl
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