Yiotis Kaltsikis
Software Engineering Manager at Contentful
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolYiotis Kaltsikis is a Software Engineering Manager based in Berlin with 10 years of hands-on experience building JavaScript full‑stack applications and leading engineering teams at Contentful. He progressed from senior full‑stack roles into management while continuing to contribute code, notably on Contentful UI extensions and marketplace apps integrating commercetools. Comfortable across the stack, he has a track record of shipping UI components, improving responsiveness, and solving performance bottlenecks from frontend React migrations to backend optimizations. An early contributor to a client-side gallery library (Filterizr) and author of tested Contentful extensions, he blends product-minded engineering with pragmatic leadership. He trained in English Language and Literature, which underpins his clear communication and cross-functional collaboration in international teams.
10 years of coding experience
6 years of employment as a software developer
Bachelor's Degree, English Language and Literature, General, 8.46 / 10 (Greek grading system), Bachelor's Degree, English Language and Literature, General, 8.46 / 10 (Greek grading system) at Aristotle University of Thessaloniki (AUTH)
Greek, English, German
Stackoverflow
531reputation
42kreached
10answers
0questions
animation
top-5%
Github Skills (34)
javascript10
jquery10
ui-components10
css10
typescript10
contentful10
android-app10
typescript-types10
typescripts10
react10
application10
api-design9
shopify9
animation9
image-gallery9
Programming languages (6)
Github contributions (5)
giotiskl/filterizr
Feb 2016 - May 2020
:sparkles: Filterizr is a JavaScript library that sorts, shuffles and filters responsive galleries using CSS3 transitions :sparkles:
Role in this project:
Front-end Developer
Front-end DeveloperContributions:18 releases, 623 commits, 13 PRs in 4 years 3 months
Contributions summary:Yiotis's primary contribution appears to be the initial release of Filterizr, a JavaScript library designed for filtering and sorting image galleries with CSS3 transitions. The single commit encompasses the creation of the core JavaScript file, src/jquery.filterizr.js, demonstrating proficiency in JavaScript and jQuery. The focus is on the creation of the library functionality and initial implementation details.
jquery-pluginimage-gallerycssjavascriptshuffle
contentful/extensions
Sep 2019 - Feb 2020
Repository providing samples using the UI Extensions SDK
Role in this project:Front-end Developer
Front-end DeveloperContributions:57 commits, 39 PRs, 134 pushes in 5 months
Contributions summary:Yiotis primarily contributed to the development of a UI extension for Contentful, specifically focusing on image metadata. They implemented the initial UI with React components, including a text input field and a focal point display. The user also created components for a focal point dialog, including image previews and styling, demonstrating an understanding of UI design and Contentful's UI extension SDK. They also incorporated unit tests to ensure the correct behavior of the developed components.
extensionssdk
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