Rogier Spieker
Application Process Consultant
Arnhem, Gelderland, Netherlands
Summary
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SeniorRogier Spieker is an experienced web application engineer and consultant with over 18 years of hands-on development and architecture experience, currently serving as an Application Process Consultant at Alliander. He began experimenting with the web in 1993 and professionally shifted from Windows to web development around 2000, building deep expertise across PHP (Zend certified), JavaScript (full-stack to ES2015), HTML/CSS, SVG, XML/XSLT, and both SQL and NoSQL databases. Rogier has led teams and innovation efforts at companies like Magneds and Advance Productions, and continues to invest in open source work through his Konfirm projects. Comfortable across macOS and Unix environments, he prefers crafting code by hand in lightweight editors and brings a designer-friendly sensibility with practical skills in Photoshop, Illustrator, and Sketch. Notably, his career reflects sustained curiosity about web possibilities—from DHTML’s early days to modern toolchains—making him adept at translating legacy constraints into maintainable, forward-looking solutions.
18 years of coding experience
14 years of employment as a software developer
Stackoverflow
4,107reputation
2.1mreached
86answers
2questions
javascript
top-5%
svg
top-5%
Github Skills (113)
webapp10
javascript9
compiler9
switchboard9
svg9
two-way-binding9
two-way9
tagged-template9
eval9
literal9
binding9
nodejs9
prompt8
browser8
markdown8
Programming languages (6)
Github contributions (5)
konfirm/node-decoy
Dec 2017 - Oct 2023
Proxy objects, keeping track of mutations to commit/rollback
Contributions:6 PRs, 26 pushes, 6 branches in 5 years 11 months
proxymutationsproxy-objectscommitrollback
konfirm/node-random
Jun 2019 - Dec 2021
Safe random number generator
Contributions:19 commits, 9 PRs, 17 pushes in 2 years 6 months
javascriptnumber-generatorrandom-generationrandom-numbernodejs
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