RomanΒ Parashchenko
Senior Ruby Engineer AdTech, Demand-Side Platform (DSP)
Berlin, Germany
Summary
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Top SchoolRoman Parashchenko is a Senior Ruby Engineer with 14 years of experience building high-throughput backend systems and modernizing cloud-native infrastructure for AdTech, fintech, logistics, and marketplace platforms. Currently driving scalability and real-time reliability for a DSP/RTB stack at Digital Turbine, he combines deep Ruby/Rails expertise with production-grade DevOps (Kubernetes, Terraform, AWS/GCP) to handle billions of transactions daily. He has led technical teams, designed microservices and streaming pipelines, and introduced observability and CI/CD practices that improve release velocity and system resilience. Romanβs background spans low-latency trading systems, geospatial logistics platforms, and large-scale crowdsourcing products, showing an ability to cross between domains and languages (Elixir, Kafka, BigQuery) when performance demands it. Known for mentoring engineers and modernizing legacy codebases, he often brings pragmatic architecture choices that balance speed, cost, and maintainability. Based in Berlin with an MSc in Physics and Electronics, he pairs analytical rigor with hands-on engineering to turn complex data flows into reliable production services.
14 years of coding experience
13 years of employment as a software developer
Master of Science (MSc) Physics and Electronics, Master of Science (MSc) Physics and Electronics at Sumy State University
English, Russian, Ukrainian, German
Github Skills (98)
rails-engines10
acceptance-testing10
ruby10
runner10
turnip10
bdd10
cucumber10
rails-admin10
continuous-testing9
jsonapi-resources9
web-application9
mailhog9
rocket9
csrf-token8
rspec8
Programming languages (9)
Github contributions (5)
strongqa/howitzer_example_web
Jun 2016 - Sep 2021
This repository is created to share pages between rspec, cucumber, turnip examples
Contributions:2 PRs, 21 pushes, 4 branches in 5 years 4 months
cucumberrspec
strongqa/demo_web_app
Jan 2015 - Aug 2022
This is demo web application for howitzer_example
Contributions:2 reviews, 94 commits, 37 PRs in 7 years 7 months
web-demoweb-applicationhowitzer
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