Marcin Wieprzkowicz
Senior Software Engineer at Julius Baer
Thalwil, Zurich, Switzerland
Summary
👤
Senior🎓
Top SchoolMarcin Wieprzkowicz is a Senior Software Engineer with 13 years of experience, specialising in frontend development and web architecture from startup to enterprise. He has led rewrites and migrations—moving complex Preact codebases to React, modernising test stacks to Jest, and migrating build systems to Webpack—while delivering user-facing features like cryptocurrency product UIs at a private bank. Comfortable as a tech lead and co-founder, he blends stakeholder-facing product sense with hands-on engineering, having built recommendation engines, CI/CD and CDN infrastructures, and scalable architectures. He thrives in remote, cross-time-zone teams and is an open source enthusiast who prioritises performance, maintainability and measurable business outcomes. Less obvious: he routinely tackles tricky engineering puzzles such as deobfuscating stack traces and integrating dynamic Redux modules to balance runtime performance with developer ergonomics.
13 years of coding experience
9 years of employment as a software developer
Engineer, Computer science: Internet Technologies, 5, Engineer, Computer science: Internet Technologies, 5 at Technical University of Lodz
Polish, English, German
Stackoverflow
306reputation
69kreached
5answers
0questions
facebook-graph-api
top-5%
Github Skills (38)
jquery-plugin10
facebook-graph-api9
wysiwyg8
trumbowyg8
chrome-extension8
chrome7
text-editing7
rich-text-editor7
jquery-selectors6
html6
google-chrome-extension6
ace-editor6
confirmation6
parsing6
css6
Programming languages (3)
Github contributions (5)
marcinwieprzkowicz/three.js-builder
Mar 2014 - Nov 2014
Contributions:15 commits in 8 months
marcinwieprzkowicz/dead-hollow
Jun 2013 - Jan 2014
Contributions:62 commits in 7 months
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