Marcin Ciunelis
Senior Engineer at UK’s biggest business insurance broker
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMarcin Ciunelis is a senior software engineer with 16 years of hands-on experience designing, refactoring and scaling web applications across startups and large companies. He specializes in Ruby/Rails and full-stack work including JavaScript frontends, API design and microservices, and has led migrations from legacy monoliths to service-oriented architectures. Pragmatic about simple, extensible design, he treats refactoring as a craft and enjoys iterating toward cleaner, more maintainable systems. Marcin has contributed to notable open-source projects such as Errbit, improving error handling, caching and performance, and has deep experience with payments, invoicing and fraud prevention in production systems. Based in Warsaw, he pairs a practical engineering mindset with a history of building tooling and integrations that keep high-traffic platforms reliable.
16 years of coding experience
15 years of employment as a software developer
Faculty of Electronics, Telecommunications and Informatics, Faculty of Electronics, Telecommunications and Informatics at Technical University of Gdansk
English, Polish, Spanish
Stackoverflow
384reputation
39kreached
7answers
0questions
Github Skills (20)
ruby-rails10
rails10
mongodb-database10
ruby10
error-log10
mongodb10
kaminari9
javascript8
api7
apidoc7
githubaction-workflow6
sprockets6
asset-pipeline6
ruby-on-rails6
gsub6
Programming languages (4)
Github contributions (5)
errbit/errbit
Sep 2011 - Oct 2012
The open source error catcher that's Airbrake API compliant
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:66 commits in 1 year 1 month
Contributions summary:Marcin contributed to various aspects of the Errbit project, demonstrating a full-stack skillset. Their work included implementing features like time zone options for users, refactoring code, and improving error handling. They also updated the project's dependencies and refactored the caching mechanism for more efficient use of resources. Additionally, the user added new features, such as notices paging and implemented several performance and stability improvements.
apicatchererror-monitoringcompliantairbrake
martinciu/martinciu.github.io
Feb 2015 - Mar 2019
Contributions:1 PR, 10 pushes, 1 comment in 4 years 2 months
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