Rostyslav Toch

Senior Software Engineer at Google | Ex-AWS

Ireland

About

I design and lead the development of complex, distributed systems that power critical cloud services. At Google, I focus on building scalable, highly available architectures and collaborating across engineering teams to deliver impactful features at global scale. Previously at AWS, I owned large-scale infrastructure projects and developed production-grade systems end-to-end. I’m particularly passionate about Rust, Go, and modern distributed systems design. This drives me to tackle hard problems — from performance optimizations and clean system architecture to troubleshooting the most stubborn production issues. Outside of day-to-day engineering, you’ll find me competing in algorithmic contests. Leetcode: https://leetcode.com/roka/ Codeforces: https://codeforces.com/profile/Roka HackerRank: https://www.hackerrank.com/Roka1 Codesignal: https://app.codesignal.com/profile/Roka Codewars: https://www.codewars.com/users/Roka Spoj: https://www.spoj.com/users/roka1/

Experience

  • Senior Software Engineer at Google
    Jan 2025 - Present · 1 yr 6 mos

  • Software Development Engineer II at Amazon Web Services (AWS)
    Jan 2022 - Jan 2025 · 3 yrs 1 mo

  • Senior Software Engineer at EPAM Systems
    Dec 2020 - Nov 2021 · 1 yr

  • .NET Software Engineer at Abto Software
    Oct 2019 - Dec 2020 · 1 yr 3 mos

  • .NET Software Engineer at SoftServe
    Mar 2019 - Oct 2019 · 8 mos