Łukasz Sielski
Head Of Software Development, CMS at SIELAY Ltd
London, England, United Kingdom
Summary
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Senior🎓
Top SchoolŁukasz Sielski is a Head of Software Development specializing in CMS and internal tools, bringing over two decades of commercial experience and 11 years in senior engineering leadership roles. Based in London, he currently leads MailOnline’s editorial, SEO and audience tooling while combining hands-on development with mentoring and team process improvements. His background spans founding and running a software house, desktop and Electron apps, serverless analytics on AWS, and migrating complex front-end stacks—demonstrating practical full‑stack and devops fluency. Comfortable in both product and consultancy contexts, he has a track record of stabilizing high-traffic publishing systems and translating editorial needs into robust engineering solutions. A pragmatic technologist, he still describes himself simply as “not going anywhere,” reflecting long-term commitment to the platforms he runs.
11 years of coding experience
13 years of employment as a software developer
Certificate Javascript, Certificate Javascript at W3SchoolsBachelor Economics, Bachelor Economics at Uniwersytet SzczecińskiBachelor Economics, Bachelor Economics at Zachodniopomorska Szkoła Biznesu - Akademia Nauk Stosowanych
English, German, Russian, Russian, Ukrainian, Polish, Spanish
Github Skills (200)
serverless10
html10
static-site-generator10
angularjs10
mean-stack10
nodejs10
popup10
css10
smart-table10
expressjs10
menu10
nunjucks10
octokit10
ng2-admin10
plop10
Programming languages (11)
Github contributions (5)
sielay/roadmarks
Mar 2015 - Nov 2015
Contributions:37 commits, 1 PR, 47 pushes in 8 months
contentsmarkdownnavigation
sielay/eleventy-plugin-blog
Jun 2020 - Jul 2022
Zero config blog features for 11ty
Contributions:17 commits, 3 PRs, 14 pushes in 2 years 1 month
zeroeleventypluginconfigzero-config
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