Andrei Subbota
Senior Backend Engineer at Mentimeter
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolAndrei Subbota is a Senior Backend Engineer with 16 years of experience modernizing high-scale platforms, currently operating at Staff level at Mentimeter where he leads complex domain migrations and platform-wide backend initiatives. He specializes in legacy system modernization, API platforms serving millions of users, and observability—having driven Datadog and OpenTelemetry improvements across multiple product teams. A pragmatic polyglot with deep roots in the Ruby ecosystem, he maintains OSS contributions to projects like Grape and Errbit and has improved DevOps tooling around Capistrano DB syncs. Andrei combines hands-on systems design and fast, thorough code reviews with cross-team technical leadership and mentorship, helping teams adopt reliable backend practices. Based in Stockholm, he brings a mathematician’s rigor to reliability and migration challenges, often surfacing subtle integration issues before they reach production.
16 years of coding experience
21 years of employment as a software developer
BS Mathematic, BS Mathematic at Samara State University
Russian, English
Stackoverflow
116reputation
10kreached
6answers
0questions
Github Skills (29)
monitoring10
ruby-rails10
grapesjs10
apidoc10
api-design10
capistrano10
rspec10
rails10
database-administration10
validation10
ruby10
api10
error-log10
gr10
devops10
Programming languages (8)
Github contributions (5)
sgruhier/capistrano-db-tasks
May 2014 - Feb 2018
Add capistrano tasks for syncing remote and local database
Role in this project:
DevOps Engineer & Backend Developer
DevOps Engineer & Backend DeveloperContributions:3 releases, 33 commits, 27 PRs in 3 years 9 months
Contributions summary:Andrei primarily contributed to the project by enhancing the database synchronization tasks within Capistrano. They focused on improving database configuration, including adding support for database port, user name, and the `db_ignore_tables` option. The commits also introduce the integration of Gzip for database compression and improve the loading of remote database configuration by parsing the ActiveRecord configuration. Moreover, they added logging and error handling to improve the usability of the tasks.
capistranolocal-database
ruby-grape/grape
Nov 2023 - Dec 2025
An opinionated framework for creating REST-like APIs in Ruby.
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 reviews, 6 PRs, 38 comments in 2 years 1 month
Contributions summary:Andrei primarily contributed to the Grape API framework, focusing on enhancing its parameter handling and validation capabilities. Their work included fixing validation issues within `with` blocks, implementing deep merging for group parameter attributes, and supporting nested `with` calls within the parameter DSL. Additionally, they addressed an issue related to correct full path building for lateral scopes and aligning error method signatures. The user also fixed an issue in the `rescue_from` block.
restrubygrapeapi
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