Summary
Oleksii Petenko is a senior software engineer with over 15 years of hands-on experience building backend systems for high-traffic products, most recently at Fiverr and now at PandaDoc. He specializes in Kotlin, Ruby, and TypeScript and has driven measurable business impact—introducing time-tracking functionality that lifted global orders by ~5% and optimizing upstream services to accelerate delivery timelines. Oleksii has a strong track record of migrating legacy infrastructures and improving service performance using Kafka, Docker, Kubernetes and MongoDB. Promoted through merit, he operates as a cross-domain expert who blends product-driven development with deep technical troubleshooting. Based in Ukraine and trained at Kyiv Polytechnic Institute, he thrives on diving into complex problems and creating elegant, team-friendly solutions. Colleagues rely on him for both reliable execution and pragmatic architectural guidance across distributed systems.
9 years of coding experience
16 years of employment as a software developer
Igor Sikorsky Kyiv Polytechnic Institute
English, Ukrainian, Russian