Alexey Katsman
Software Engineer at JetBrains
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolAlexey Katsman is a software engineer with 11 years of experience building high-performance distributed systems and databases, currently based in Amsterdam. He has driven latency and resource-usage improvements at scale—optimizing GKE networking with eBPF at Google and implementing query-order estimation and overload protection in ClickHouse to cut query time and memory use. As a co-founder of an AR board-game startup he owned backend, protocol and parts of the frontend, demonstrating a rare full-stack blend across C++, Rust, Go, C#, Kotlin and Python. His open-source contributions to Cilium focused on reducing Kubernetes pod startup latency and improving observability, reflecting deep hands-on experience with eBPF and cloud-native datapaths. Alexey also mentors in algorithms and has repeatedly delivered multi-million-dollar infrastructure savings through predictive scheduling and platform consolidation.
11 years of coding experience
9 years of employment as a software developer
Master of Computer Science Applied Mathematics And Informatics, Master of Computer Science Applied Mathematics And Informatics at ITMO UniversityFellow, Fellow at Outtalent
Russian, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (12)
cnc10
kubernetes10
container10
go10
networking10
ebpf10
kubernetes-pods10
devops9
automation9
automations9
observability8
security8
Programming languages (8)
Github contributions (5)
cilium/cilium
Mar 2022 - Jul 2023
eBPF-based Networking, Security, and Observability
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:16 reviews, 10 PRs, 51 comments in 1 year 4 months
Contributions summary:Alexey's contributions primarily focus on optimizing the Cilium networking and security platform, specifically improving Kubernetes Pod startup latency. They removed unused code sections related to BPF for LXC, resulting in significant performance gains. Additionally, the user refactored the datapath loader to utilize a single CollectionSpec loading for multiple programs, improving efficiency and reducing latency. They also introduced the ability to dump cgroup metadata, contributing to debugging and observability capabilities.
bpfcontainerskerneltroubleshootingkubernetes-networking
alexkats/ingress-gce
Dec 2022 - Apr 2024
Ingress controller for Google Cloud
Contributions:2 PRs, 90 pushes, 25 branches in 1 year 4 months
gcpcontrollergoogleingress-controllergoogle-cloud-platform
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