Karim Marabet
Ruby React Engineer at CreativeCo Studio
Bialystok Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolKarim Marabet is a Ruby React engineer with eight years in software development and two years of commercial Rails-focused experience, blending backend specialization with practical frontend skills in React and TypeScript. He has hands-on experience optimizing high-load systems—improving server performance by ~25%, cutting heavy Sidekiq job costs, and reducing mobile app load times by ~79%—and has built production microservices and API integrations for payments and push notifications. Comfortable working in SCRUM teams and client-facing contexts, he has improved CI, sped up test suites, and authored scripts that manipulate millions of records for scale. Karim contributes to product direction and values opportunities to influence architecture and UX, evidenced by a from-scratch shopping cart with AI-powered autofill and a deep nested comments API. He balances engineering with technical writing on Medium and is continually learning new technologies, including Go and observability tooling like New Relic and Scout APM. Based in the Bialystok area, he brings a pragmatic, performance-first approach to backend systems that also ships polished front-end experiences.
8 years of coding experience
3 years of employment as a software developer
Bachelor's degree, Bachelor's degree at Belarusian State University of Informatics and Radioelectronics
Github Skills (20)
explore10
collections9
rails8
ruby8
mvc7
ruby-on-rails7
github7
html7
activerecord6
oop4
txt4
oop-library4
stl3
oop-principles3
web-application3
Programming languages (6)
Github contributions (5)
mrabets/math-kata
Sep 2021 - Jan 2023
Web application for solving math problems. This app uses PostgreSQL and ActionCabel, supports dark mode and two languages (i18n)
Contributions:3 PRs, 76 pushes, 2 branches in 1 year 4 months
mathactioncablesolvingrailsproblems
mrabets/cpp-course
Nov 2020 - Jul 2021
Labaratory work developed in C++. Project includes txt and bin files working, STL library, OOP principles and others.
Contributions:18 commits, 2 PRs, 20 pushes in 8 months
raiitxtcppprinciplesbin
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