Karolis Mazukna
Lead Integration Engineer, Remote
Kaunas, Kaunas County, Lithuania
Summary
👤
Senior🎓
Top SchoolKarolis Mazukna is a Lead Integration Engineer with 12 years of experience building and operating web-scale services, currently leading integrations at Lumar (formerly Deepcrawl) while also running his own consultancy. He combines deep Ruby on Rails expertise with modern backend skills in Go, TypeScript/Node.js, PostgreSQL and cloud-native tooling (AWS, Terraform, CDK, serverless patterns). Karolis has a knack for stitching complex systems together—APIs, event-driven architectures and search—backed by hands-on experience with Elasticsearch, Redis and EventBridge. A Newcastle University computer science graduate, he has matured from Rails-focused development into cross-functional platform engineering and developer-facing integrations. Colleagues describe him as a pragmatic engineer who balances product-minded thinking with infrastructure-level rigor.
12 years of coding experience
6 years of employment as a software developer
BSc (Hons), BSc (Hons) at Newcastle UniversityKaunas Jonas Jablonskis gymnasium
Lithuanian, English
Stackoverflow
397reputation
37kreached
4answers
8questions
Github Skills (146)
javascript10
html10
shell10
cli10
zsh10
css10
aws10
sanic9
compiler9
python9
asgi9
nunjucks9
cli-app9
docker9
php9
Programming languages (14)
Github contributions (5)
jenkinsci/deepcrawl-test-plugin
Mar 2022 - Feb 2025
Contributions:3 reviews, 4 PRs, 5 pushes in 2 years 11 months
zenedge/chewy
May 2015 - Sep 2017
Contributions:6 PRs, 5 pushes, 3 branches in 2 years 4 months
ruby-frameworkhigh-levelruby-clientrubyelasticsearch
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