Konstantin Belyalov
Staff Software Engineer at Todyl
Denver, Colorado, United States
Summary
🤩
Rockstar🎓
Top SchoolKonstantin Belyalov is a Staff Software Engineer based in Denver with deep expertise in infrastructure and network security, backed by over 25 years of hands-on engineering and nine years in senior software roles. He has designed and implemented high-performance network and proxy systems (AppID, IPS/IDS, HTTP reverse proxies) and built CI/CD and traffic replay tooling for realistic testing at scale. Konstantin contributes to notable open-source projects such as Envoy—improving gRPC-JSON transcoding and streaming behavior—and to goebpf, adding XDP counters and socket filter support with robust integration tests. His background spans founding an ISP and developing billing/AAA systems to driving product-grade features at Dropbox and F5, giving him rare full-stack visibility into network, security, and backend systems. Known for pragmatic problem solving, he focuses on making streaming, transcoding, and packet-level features reliable in production. He combines systems-level C/C++ and Go proficiency with a security-minded infrastructure perspective.
9 years of coding experience
23 years of employment as a software developer
Tomsk State Pedagogical University
English, Russian
Stackoverflow
11reputation
426reached
2answers
0questions
Github Skills (15)
http10
go10
backend10
back-end-development10
ebpf10
grpc10
testing10
bpf9
go-language9
golang9
microservices-application9
microservices9
json9
cnc8
eclipse6
Programming languages (5)
Github contributions (5)
dropbox/goebpf
Apr 2019 - Jan 2022
Library to work with eBPF programs from Go
Role in this project:
Backend Developer
Backend DeveloperContributions:11 reviews, 42 commits, 47 PRs in 2 years 9 months
Contributions summary:Konstantin primarily contributed to the core functionality of the goebpf library. They introduced integration tests to ensure the library's reliability. The user also addressed dependency issues, switching from a godropbox/errors library to standard errors. In addition, the user implemented features such as XDP packet counters, firewalls, and socket filter support, thereby enhancing the library's capabilities.
bpfgolanggolang-libraryebpf-programsbcc
envoyproxy/envoy
Apr 2020 - Jun 2022
Cloud-native high-performance edge/middle/service proxy
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits, 5 PRs, 64 comments in 2 years 1 month
Contributions summary:Konstantin Belyalov primarily contributed to the gRPC transcoding functionality within the Envoy proxy. His work focused on enhancing the `grpc-json` transcoder, adding support for `google.api.HttpBody` response streaming, processing multiple gRPC frames, and addressing issues with content-type handling and HTTP status code conversion in streaming scenarios. The contributions included implementing new features, bug fixes, and improvements to the transcoding process, especially for gRPC streaming. These changes significantly improved Envoy's ability to handle gRPC-JSON transcoding, allowing for more versatile response handling.
nanoservicesmore-catsgolangcontainersproxy
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