Yan Oreshchenkov
Chief Architect at Workee Job Search App
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolYan Oreshchenkov is a seasoned technology leader and Chief Architect based in Warsaw with over a decade of hands-on experience evolving from C++ and .NET developer to CTO and architect. He has repeatedly transformed legacy systems into cloud-native, high-availability microservice platforms, notably driving AWS EKS migrations, CI/CD automation, and API latency improvements of up to 40x. At CactusSoft and Workee he combined strategic leadership with deep technical contributions—optimizing hosting costs by half while building resilient, API-first back ends. Yan pairs broad domain experience (security, project management, data protection) with pragmatic engineering, often stepping into roles from developer to DPO as projects demand. Colleagues value his curiosity-driven approach and record of institutionalizing best practices like DI and automated pipelines. He brings a rare blend of operational discipline and creative problem solving that consistently turns complex requirements into measurable business outcomes.
10 years of coding experience
19 years of employment as a software developer
Bachelor's Degree Electronic, Bachelor's Degree Electronic at Belarusian State University of Informatics and Radioelectronics
English, Polish, Russian, Russian
Stackoverflow
223reputation
47kreached
2answers
1question
Github Skills (97)
filemaker10
rebus10
bus10
stream9
messaging9
message-queue9
transport9
servicebus9
dbus9
storage9
pipe9
nodejs9
http-server9
azure-service-bus8
katana8
Programming languages (4)
Github contributions (5)
CactusSoft/Cactus.DummyAuthentication
Jul 2016 - Feb 2019
Dummy authentication for Katana project
Contributions:1 PR, 10 pushes, 2 branches in 2 years 7 months
katanaauthentication
CactusSoft/Cactus.Fileserver
Jul 2016 - Apr 2021
HTTP file storage microservice solution
Contributions:77 commits, 6 PRs, 65 pushes in 4 years 9 months
golangfile-storagenodejsstoragefilemaker
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