Dmytro Shteflyuk
Senior Principal Software Engineer at Workday
Toronto, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolDmytro Shteflyuk is a Senior Principal Software Engineer with 19 years of experience building scalable web applications, operating systems, and database-driven backends from Toronto. He combines deep expertise in MySQL relational design, Ruby and Go server-side development, and infrastructure automation to optimize performance and reliability at scale. At Workday and previous roles including Eligible and Scribd he has led architecture, ops, and deployment improvements that bridge engineering and production concerns. An active open-source contributor, he has improved SEO tooling for Rails via the popular meta-tags gem and enhanced deployment tooling in Basecamp’s kamal with pragmatic proxy and validation features. Known for shipping robust, well-tested code and simplifying operational complexity, he brings both hands-on implementation skills and a systems-level view to engineering problems.
19 years of coding experience
22 years of employment as a software developer
Master Computer Science, Master Computer Science at Kharkiv National University of Radio Electronics
English, Russian, Ukrainian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (14)
testing10
configuration-management10
ruby-rails10
docker10
web-proxy10
proxy10
rails10
dockers10
deployment-automation10
proxy-pac10
http-proxy10
ruby10
githubaction-workflow5
github-ci5
Programming languages (11)
Github contributions (5)
kpumuk/meta-tags
Sep 2008 - Jan 2023
Search Engine Optimization (SEO) for Ruby on Rails applications.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:41 releases, 2 reviews, 397 commits in 14 years 6 months
Contributions summary:Dmytro primarily contributed to the `meta-tags` Ruby gem, focusing on implementing and testing core functionality related to setting and displaying meta tags in Rails applications. They added various features, including support for custom meta tags, title array, HTML stripping, nofollow/noindex and canonical URL generation. Additionally, the user wrote comprehensive tests to ensure the reliability and correctness of the implemented features.
schema-orgseotoolsprerenderrubyseo-optimization
basecamp/kamal
Sep 2024 - Feb 2025
Deploy web apps anywhere.
Role in this project:DevOps Engineer
DevOps EngineerContributions:1 review, 5 PRs, 8 comments in 4 months
Contributions summary:Dmytro's contributions focus on enhancing the `kamal` deployment tool's configuration and proxy functionalities. They introduced features allowing multiple hosts for proxy configurations and implemented validation to prevent conflicting configurations. The user modified testing suites to accommodate the new features and edge cases. Additionally, the user simplified deployment options, indicating a focus on streamlining the deployment process within the context of a web application deployment tool.
containerszero-downtimezerorailsdocker
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