Summary
Valentyn Khalin is a Senior Software Engineer with nine years of experience specializing in backend systems, cloud-native architectures, and DevOps-driven delivery. Beginning his career in QA gave him a strong reliability mindset that he now applies to large-scale modernization projects, including monolith-to-microservices migrations, Kubernetes adoption, and CI/CD overhaul. At Tietoevry he has driven migrations across stacks—upgrading MongoDB, moving frontends to React+TypeScript, and shifting CI from Jenkins/Gerrit to GitLab—while splitting senior engineering and lead responsibilities. He pairs hands-on Python development with observability and security work using Prometheus, Loki, ELK and Grafana, and has deep practical experience across OpenStack, Docker, and cloud platforms. Valentyn is particularly effective translating stakeholder goals into maintainable architectures and mentoring teams through complex transitions. He holds a Master’s in Computer Science and brings a rare QA-to-architecture perspective that emphasizes operational robustness as much as feature delivery.
9 years of coding experience
7 years of employment as a software developer
Engineer's degree, Computer Science, Engineer's degree, Computer Science at Kharkov National University of Radioelectronics
Master's degree, Computer Science, Master's degree, Computer Science at University of Jyväskylä
English, Russian, Ukrainian, Finnish