Kjell Hedström
USA, United States
Summary
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RockstarKjell H is a pragmatic, people-first CTO and engineering leader with 14 years of experience building cloud-native, high-performance systems across AWS SaaS, network security, payments, medical devices and military/air-traffic systems. He currently serves as CTO at Onfleet and maintains widely used open-source projects such as the cross-platform g3log C++ logger, reflecting a hands-on background in high-performance C++ and developer tooling. Known for scaling teams (including 5x headcount growth and a 300% increase in delivery throughput) and fostering calm, autonomous engineering cultures, he pairs strong technical judgment with exceptional hiring, onboarding, and mentorship skills. Unusually for a senior technologist, he also channels craftsmanship into wild-game cooking and charcuterie, underscoring a practical, detail-oriented mindset.
14 years of coding experience
Github Skills (13)
crash-reports10
tracelogging10
error-handling10
logging10
c-language10
lib10
logger10
audit-logging10
c-programming-language10
async9
asynchronous9
debug8
debugging8
Programming languages (10)
Github contributions (5)
KjellKod/g3log
Nov 2011 - Dec 2022
G3log is an asynchronous, "crash safe", logger that is easy to use with default logging sinks or you can add your own. G3log is made with plain C++14 (C++11 support up to release 1.3.2) with no external libraries (except gtest used for unit tests). G3log is made to be cross-platform, currently running on OSX, Windows and several Linux distros. See Readme below for details of usage.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 releases, 58 reviews, 489 commits in 11 years 3 months
Contributions summary:Kjell made multiple commits focused on reorganizing and refactoring the source code of a logging library. They concentrated various files into a central "src" directory. Their commits involved refactoring code related to the background file writer and incorporating new logging syntax, specifically "printf" style logging functions and conditional logging. Further commits included the addition of a signal handler and stack dump functionality.
c-plus-plusloggingunitasynclogger
logrhythm/FileIO
Sep 2014 - Feb 2018
A generic C++ file IO class
Contributions:34 commits, 29 PRs, 15 pushes in 3 years 6 months
cppc-plus-plusfile-ioheader-onlygeneric
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