David Maciejewski
UI/UX Developer at IT-P
Minden, North Rhine-Westphalia, Germany
Summary
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SeniorDavid Maciejewski is a senior UI/UX consultant and front-end architect based in Minden, Germany, with about a decade of experience shaping design-driven web applications. He currently leads UI/UX and front-end initiatives at IT-P GmbH, combining deep front-end engineering with a full-stack sensibility. An active educator, he serves as a lecturer in Digital Environments at HAWK Hochschule für angewandte Wissenschaften und Kunst. Beyond tech, he is a running coach and personal trainer, bringing discipline and a performance mindset into his professional approach. David embodies three pillars—front-end architecture, education, and coaching—transforming complex requirements into practical, scalable UI/UX solutions.
11 years of coding experience
Stackoverflow
121reputation
5kreached
3answers
0questions
Github Skills (200)
material-design-lite10
airpods10
lazyload10
sitemap-xml10
shortcuts10
touchbar10
hide10
yui10
menu10
donations10
bpg10
webfonts10
sitemap10
handlebars-helpers10
wallpaper10
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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