Ruslan Peshchuk
Senior Backend Engineer at Circula
Offenbach am Main, Hesse, Germany
Summary
👤
Senior🎓
Top SchoolRuslan Peshchuk is a Senior Backend Engineer with 12 years of experience building high-performance, production-grade systems across fintech, manufacturing, and life-science domains. He specializes in Java/Kotlin, databases, AWS, and DevOps practices, and has a track record of measurable impact—e.g., cutting a 10M+ MongoDB-to-Elasticsearch indexing job from 16 hours to 1. He combines hands-on architecture and coding (CI/CD, Gradle, Docker, Spring/Ktor) with team-building and process improvements, having hired and onboarded engineers and introduced automated release pipelines and quality checks. Pragmatic and business-oriented, he focuses on performance, cost-efficiency, and developer experience while valuing transparency and concise communication. Based in Offenbach am Main, Germany, he contributes to open-source components used by his teams and documents technical decisions to support fundraising and long-term maintainability.
13 years of coding experience
16 years of employment as a software developer
Informatics Computer Techniques and Computer Technologies Information Technology, Informatics Computer Techniques and Computer Technologies Information Technology at ITMO University
English, Hebrew, Russian, German, Portuguese
Stackoverflow
11reputation
4kreached
3answers
0questions
Github Skills (41)
excelreader10
apache-poi10
crossover9
continuous-integration8
api8
rest8
aws8
medium8
intellij-idea8
json8
testing8
aws-cloud7
developer-tools7
python7
elasticsearch6
Programming languages (7)
Github contributions (5)
peshrus/crossover-interview-2019-written-evaluation
Jan 2019 - May 2020
Contributions:13 commits, 2 pushes, 1 branch in 1 year 4 months
peshrus/peshrus.github.io
Dec 2018 - Jan 2023
Ruslan Peshchuk's website based on GitHub Pages
Contributions:5 reviews, 50 commits, 19 PRs in 4 years 1 month
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