Yan Oreshchenkov
Chief Architect at CactusSoft
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 (59)
messaging9
servicebus9
http9
migration-tool9
rebus9
microservices9
message-bus9
dotnet8
json-response8
stream8
message-queue8
json-rpc8
transport8
mysql7
monitoring7
Programming languages (4)
Github contributions (5)
CactusSoft/Cactus.Fileserver
Jul 2016 - Apr 2021
HTTP file storage microservice solution
Contributions:77 commits, 6 PRs, 65 pushes in 4 years 9 months
microservices
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
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