Ilya Khlopotov
Böblingen, Baden-Württemberg, Canada
Summary
🤩
Rockstar🎓
Top SchoolIlya Khlopotov is a systems-minded software leader with 7+ years of experience building and modernizing distributed systems, currently based in Böblingen with deep ties to IBM and open-source projects. Trained as a PhD in system analysis, he combines low-level expertise—contributions to libbpf, zlib-ng and the IBM Z port of GCC—with hands-on product delivery across CouchDB, Cloudant and critical backend services. At IBM he led cross-functional teams, cut onboarding time from a day to five minutes, and replaced an end-of-life search stack while preserving API and data compatibility. Pragmatic about both developer experience and global scale, he architects abstraction layers and type-safe actor frameworks to future-proof core business logic. Notably, his open-source work includes CI/CD, s390x support and hardware-accelerated compression on IBM Z, showing a rare blend of performance tuning and operational rigor. He leads by enabling experts around him, balancing mentorship, hiring and sustained code quality.
7 years of coding experience
8 years of employment as a software developer
PhD System Analysis industrial applications, PhD System Analysis industrial applications at Samara State Technical University
Stackoverflow
725reputation
341kreached
35answers
1question
Github Skills (43)
assembly10
packet10
c1110
linux-kernel10
bpf10
gcc10
c1710
kernel10
deflate10
filter10
assemble10
assembler10
compiler-optimization10
compression10
systemd10
Programming languages (16)
Github contributions (5)
zlib-ng/zlib-ng
Mar 2019 - Dec 2022
zlib replacement with optimizations for "next generation" systems.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:60 reviews, 75 commits, 50 PRs in 3 years 9 months
Contributions summary:Ilya primarily contributed to the optimization and improvement of the zlib-ng library, focusing on performance and hardware acceleration. Their contributions included fixing endianness detection, resolving build issues with different compilers, and adding support for IBM Z hardware-accelerated deflate, which significantly enhanced compression and decompression speeds. Furthermore, the user addressed several minor documentation fixes and implemented new features, like zng_deflate{Set,Get}Params() functions.
zlib-replacementnext-generationoptimizationsdeflatecompression
libbpf/libbpf
Sep 2020 - Jul 2022
Automated upstream mirror for libbpf stand-alone build.
Role in this project:Backend Developer
Backend DeveloperContributions:18 reviews, 43 commits, 9 PRs in 1 year 10 months
Contributions summary:Ilya primarily contributed to the `libbpf/libbpf` repository, which focuses on BPF (Berkeley Packet Filter) and tracing. Their work included bug fixes, adding support for new features like `BTF_KIND_FLOAT`, and improving code maintainability by addressing whitespace issues and using the correct byte order definitions. The user also made significant contributions to the CI/CD pipeline and testing infrastructure, including fixing error reporting and adding support for s390x architecture.
bpfstand-alonestandtracingebpf
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