Kristoffer Dalby
Member Of Technical Staff at Tailscale
Leiden, South Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolKristoffer Dalby is a seasoned backend and infrastructure engineer with 13 years of experience, currently contributing to Tailscale and the open-source Headscale project from Leiden. He blends hands-on backend development in Go with SRE and DevOps expertise gained at G-Research and ESA, shipping features that touch core VPN control plane and device posture identity. A Master's-trained software engineer, he has deep experience with Kubernetes, Terraform, Ansible, and cloud-native patterns as well as practical ops from years managing networks and VMware. Kristoffer is an active open-source contributor—his work on the popular Tailscale project includes backend enhancements that improve WireGuard-based connectivity and device posture handling. Colleagues rely on him for pragmatic, infrastructure-first solutions that bridge development and operations. He also maintains a public CV and GitHub showcasing a breadth of projects and continual tinkering beyond day-to-day product work.
13 years of coding experience
8 years of employment as a software developer
Påbygging til Studiekompetanse, Påbygging til Studiekompetanse at Sandefjord Videregående skoleICT services, ICT services at Greveskogen Videregående SkoleService og Samferdsel, Service og Samferdsel at Sandefjord Videregående SkoleMaster Computer Software Engineering, Master Computer Software Engineering at Universidad Politécnica de MadridNorwegian University of Science and Technology
Stackoverflow
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0reached
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Github Skills (12)
2factor10
go10
vpn10
oauth10
wireguard10
tailscale10
api-design9
network-programming9
system-design9
api9
security8
sso-authentication8
Programming languages (25)
Github contributions (5)
tailscale/tailscale
Sep 2022 - Jan 2023
The easiest, most secure way to use WireGuard and 2FA.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:81 reviews, 4 commits, 53 PRs in 3 months
Contributions summary:Kristoffer contributed to the Tailscale project by implementing and modifying backend functionality. They worked on features such as portlist normalization, adding views for ControlDialPlan, and integrating device posture identity. The contributions involved changes to core configuration and backend system code, specifically the addition of a c2n endpoint for posture identity. These changes enhance the functionality and capabilities of the Tailscale VPN.
secureprivacysecurityvpnwireguard
kradalby/SourceLib
Aug 2015 - Oct 2016
Contributions:21 commits, 17 pushes in 1 year 3 months
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