Markus Stenberg
Co-founder, Chief Engineer at Time Atlas Labs
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolMarkus Stenberg is a seasoned software engineer and founder based in Helsinki with over two decades of hands-on experience spanning networking, security, backend systems and devops. He has led engineering teams and built core infrastructure at companies like Aiven and co-founded Time Atlas Labs, where he works on Go, Swift, CI/CD, gitops and experiments with LLMs. A prolific open-source contributor in networking stacks, Markus has notably improved IPv6 and PCP support in miniupnpd and OpenWrt routing packages, demonstrating deep protocol and interoperability expertise. Comfortable across a dozen fluent programming languages and familiar with a wide range of operating systems and clouds, he moves easily between low-level protocols and high-level platform design. He prefers empowered teams with minimal process and enjoys learning things that aren’t already in his long list of specialties. Outside work he studies natural languages and brings that same curiosity to experimenting with ~30 programming languages he’s tried.
13 years of coding experience
14 years of employment as a software developer
Japanese language, Japanese language at WE japanese language schoolJapanese studies, Japanese studies at University of HelsinkiMSc Economics, MSc Economics at Aalto University School of Economics
Finnish, Japanese, German, English
Github Skills (14)
c1710
net10
network10
upnp10
firewall10
c1110
cprogramming-language10
ipv610
networking10
iptables10
openwrt9
url-routing9
bash8
fest4
Programming languages (16)
Github contributions (5)
openwrt/routing
Mar 2014 - May 2020
OpenWrt Routing Packages
Role in this project:
Back-end Developer
Back-end DeveloperContributions:57 commits, 11 PRs, 34 pushes in 6 years 2 months
Contributions summary:Markus primarily contributed to the `miniupnpd` package, focusing on enhancements and fixes related to IPv6 support. Their work included implementing IPv6 firewall rules, patching for IPv6-related PCP handling, and integrating various IPv6 fixes for multi-uplink and IPv6-only scenarios. They also upgraded the `miniupnpd` version and incorporated third-party patches, demonstrating an ability to integrate external code and update dependencies.
openwrtrouting
miniupnp/miniupnp
May 2014 - Oct 2014
UPnP IGD implementation
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 commits in 5 months
Contributions summary:Markus primarily contributed to the miniupnpd project by adding and modifying code related to the PCP (Port Control Protocol) implementation. Their work involved introducing features like third-party options, firewall control, and IPv6 support within the PCP server. The user also made code changes to improve the handling of peer-to-peer connections. These updates focused on enhancing the functionality and robustness of the PCP protocol.
igdnftablesnetworkingupnppcp
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