Arvid Norberg
Software Engineer at Chia Net
Stockholm County, Sweden
Summary
🤩
Rockstar🎓
Top SchoolArvid Norberg is a systems-focused software engineer with 23 years of experience and two decades of deep C++ and Boost expertise, specializing in networking, transport protocols, congestion control, and high-performance disk I/O. He led protocol design and implementation work for BitTorrent (including uTP/LEDBAT, DHTs, async disk I/O and trackers) and has held senior engineering roles at Bittorrent, Two Sigma, Blockstream and currently Chia Net. A pragmatic optimizer and security-minded engineer, he contributes to prominent open-source projects (notably libtorrent and Chia Network repos) fixing memory, correctness and fuzzing-build issues while adding performance benchmarks. He combines low-level systems craftsmanship with production-grade security and testing practices, and is comfortable moving between cryptographic back-end work (BLS), distributed systems and transport-layer internals. An understated detail: many of his contributions are not just features but hardening and refactors that prevent subtle bugs and resource leaks in critical code paths.
23 years of coding experience
16 years of employment as a software developer
Master of Science, Computing science and Engineering, Master of Science, Computing science and Engineering at Umeå Universityhigh school, Natural Sciences, high school, Natural Sciences at bromangymnasiet
English, Swedish
Stackoverflow
11,090reputation
648kreached
199answers
4questions
network-programming
top-1%
boost-asio
top-5%
tcp
top-5%
asynchronous
top-1%
posix
top-5%
linux-kernel
top-5%
Github Skills (58)
asynchronous10
libtorrent10
c-language10
bit-manipulation10
python10
scripting10
testing10
it-security10
memory-management10
operator-overloading10
ch10
digital-signature10
signature10
network-programming10
security10
Programming languages (17)
Github contributions (5)
luabind/luabind
Apr 2003 - Apr 2007
Role in this project:
Back-end Developer
Back-end DeveloperContributions:166 commits in 4 years
Contributions summary:Arvid appears to be working on the luabind library, specifically focusing on implementing and improving functionality related to class registration and operator overloading within the C++ to Lua binding system. The commits show changes to class representation, member access, function dispatching, and operator handling. The user added support for const holder types. There are improvements regarding assignment operators and improved error handling.
arvidn/libtorrent
Nov 2015 - Jan 2023
an efficient feature complete C++ bittorrent implementation
Role in this project:Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:60 releases, 773 reviews, 790 commits in 7 years 3 months
Contributions summary:Arvid contributed to the Python bindings for libtorrent by implementing testing for all categories in the python binding. They also fixed an issue in the python binding related to interpreting int settings greater than INT_MAX. Additionally, the user appears to be involved in security related changes, by adding additional error codes for SSRF mitigation and IDNA blocking, preventing potentially malicious network requests and improving overall security of the project.
bittorrentcppbencodelibtorrent
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