Aleksei Strizhak
Senior Backend Engineer at Lifebit
St Albans, England, United Kingdom
Summary
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Rockstar🎓
Top SchoolAleksei Strizhak is a Senior Backend Engineer with nine years of experience designing and shipping resilient, performance-driven systems across biotech, fintech, and edtech. He has led backend architecture and microservices implementations for federated cloud platforms—most recently building GDPR-safe modules and a clinical VCF-processing system for Lifebit's CloudOS that operate in Trusted Research Environments. Comfortable across Node.js/TypeScript and Ruby ecosystems, Aleksei combines hands-on engineering (from API design to CI/CD and Kubernetes) with practical product ownership, having driven migrations, cost optimizations, and large-scale feature rollouts. He is an active open-source contributor to notable Ruby projects like addressable and ferrum, improving URI parsing and headless Chrome tooling. Colleagues value his aptitude for documenting architectural decisions and turning complex domain requirements into auditable, production-ready services. Based in St Albans, he favors remote-first, engineering-led teams where continuous learning and measurable impact matter.
9 years of coding experience
6 years of employment as a software developer
Master's degree, Engineering Physics, Master's degree, Engineering Physics at Tyumen State University
Stackoverflow
970reputation
74kreached
41answers
14questions
Github Skills (21)
chromium10
ruby10
automation10
chrome10
uri10
automations10
testing9
rspec9
ruby-on-rails9
web-content8
webpages8
javascript8
headlessui7
headless-browser7
headless-cms7
Programming languages (15)
Github contributions (5)
rubycdp/ferrum
Oct 2019 - May 2022
Headless Chrome Ruby API
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:53 reviews, 91 commits, 39 PRs in 2 years 7 months
Contributions summary:Aleksei primarily worked on enhancing the `ferrum` library, focusing on features related to screenshot functionality and viewport resizing. They implemented the ability to take full-page screenshots, incorporating refactoring to improve code structure. Additionally, they added the capability to specify background colors in screenshots and ensured proper handling of window resizing to "normal" state from "fullscreen". They also added tests and fixed existing ones, along with some refactoring of tests.
chrome-extensionapirubydeveloper-toolschrome
sporkmonger/addressable
Mar 2018 - Sep 2021
Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. It is flexible, offers heuristic parsing, and additionally provides extensive support for IRIs and URI templates.
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 13 PRs, 40 comments in 3 years 6 months
Contributions summary:Aleksei primarily contributed to the `addressable` Ruby library, focusing on enhancing its URI parsing and manipulation capabilities. Their work included implementing new features like heuristic parsing for mailto URLs and improving existing functionalities, such as the handling of URIs starting with digits. Additionally, the user addressed specific bug fixes related to URI parsing and refactored parts of the codebase, addressing potential linting issues. These changes collectively improved the library's robustness and usability.
heuristicaddressableuri-templateuriruby
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