Slava Alekseev
Back-end Engineer at DI.FM Radio
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolSlava Alekseev is a back-end engineer with 10 years of experience building scalable Rails services and production infrastructure from Madrid. He combines product-centric thinking with hands-on implementation—shipping unified logging, async front-end/back-end integrations, cache and N+1 optimizations, and end-to-end pipelines for AI-powered image generation. Slava has led teams and projects across startups and enterprise environments, authoring high-test-coverage systems (hundreds of rspec/e2e tests) and migrating complex stacks to support mobile and CI/CD workflows. He’s also an active contributor to the well-known puma web server, improving debug logging and error reporting for real-world HTTPS and Rack scenarios. A digital nomad and pragmatic communicator, he prioritizes transparency and proposes infrastructure-driven product improvements that reduce operational cost and increase observability.
10 years of coding experience
7 years of employment as a software developer
Bachelor's degree Applied Mathematics and Informatics, Bachelor's degree Applied Mathematics and Informatics at Irkutsk State University
English, Russian
Stackoverflow
37reputation
5kreached
0answers
3questions
Github Skills (15)
ruby10
debugging10
rack10
debug10
logging10
develop10
server10
server-side10
testing9
multithreading8
rvm6
activeadmin6
paperclip6
rubygems6
ruby-on-rails6
Programming languages (13)
Github contributions (5)
puma/puma
May 2020 - May 2022
A Ruby/Rack web server built for parallelism
Role in this project:
Back-end Developer
Back-end DeveloperContributions:15 reviews, 41 commits, 8 PRs in 2 years
Contributions summary:Slava primarily contributed to the `puma/puma` web server by implementing and refining debug logging capabilities. Their work involved adding a `DebugLogger` class and integrating it throughout the server code to capture and report errors, including SSL issues, connection problems, and exceptions within the Rack application. The user refactored existing code and updated the error logging interface for more informative debugging output, and enhanced the test suite to validate the functionality of the debug logging features.
multithreadingweb-serverrackrubyparallelism
alexeevit/nvim_config
Dec 2016 - Feb 2025
Contributions:1 PR, 33 pushes, 2 branches in 8 years 3 months
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