David Maciejewski
Senior( ) UI UX Consultant at HAWK Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen
Minden, North Rhine-Westphalia, Germany
Summary
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Senior🎓
Top SchoolDavid Maciejewski is a Senior UI/UX Consultant and front-end architect with 11 years of focused experience designing and implementing user-centric interfaces while advising and training teams across industry and academia. Based in Minden, Germany, he combines hands-on front-end expertise with a long track record as a lecturer at HAWK and other institutions, translating complex digital environments into teachable patterns. At IT-P he provides consulting and workshops, leveraging a past as a full-stack developer to bridge design, performance, and architecture. Outside of tech he coaches running and personal training, bringing an unconventional discipline to team coaching and product mentorship. This blend of practitioner, educator, and endurance coach gives him a rare perspective on sustainable workflows, usability, and developer growth.
11 years of coding experience
18 years of employment as a software developer
Fachhochschulreife, Design and Applied Arts, Fachhochschulreife, Design and Applied Arts at Fachoberschule Gestaltung
German, English
Stackoverflow
121reputation
5kreached
3answers
0questions
Github Skills (200)
material-design-lite10
airpods10
lazyload10
sitemap-xml10
shortcuts10
touchbar10
hide10
yui10
menu10
bpg10
webfonts10
sitemap10
handlebars-helpers10
wallpaper10
render10
Programming languages (16)
Github contributions (5)
macx/lazysizes
Mar 2017 - Apr 2023
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
Contributions:2 pushes in 6 years 1 month
headsrcsetprerenderseo-friendlyiframes
macx/starterguide.dev
May 2023 - Feb 2025
Leitfaden zur Entwicklung von Websites
Contributions:14 releases, 2 PRs, 61 pushes in 1 year 9 months
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