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 (179)
bash10
data-handling10
sanic10
javascript10
shell10
cli10
elastic-apm10
zsh10
css10
aws10
oh-my-zsh9
build-configuration9
python-web9
spice9
html9
Programming languages (13)
Github contributions (5)
zenedge/chewy
May 2015 - Sep 2017
Contributions:6 PRs, 5 pushes, 3 branches in 2 years 4 months
ruby-frameworkhigh-levelruby-clientrubyelasticsearch
deepcrawl/api-docs-examples
Feb 2022 - Mar 2025
Contributions:1 review, 2 pushes, 1 branch in 3 years 1 month
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