Lin Song
Senior Software Engineer at Microsoft
Austin, Texas Metropolitan Area United States
Summary
🤩
Rockstar🎓
Top School
Top expert inComprehensive Self-Hosting and Secure Communication Solutions
Lin Song is a Senior Software Engineer and PhD in Electrical and Computer Engineering with 12 years of experience building reliable, secure cloud and networking systems at companies including Google and Microsoft. He combines site reliability, DevOps and backend security expertise—demonstrated by widely used open-source VPN projects (25k+ GitHub stars and 30M+ Docker pulls) that simplify self-hosted OpenVPN, WireGuard and IPsec deployments. Author of two practical VPN guides with thousands of copies sold, he focuses on improving reliability, user experience and performance (e.g., package retry logic, TCP BBR, NAT/IP handling) in production automation. Based in Austin, he brings a research-driven mindset to production engineering, often turning low-level networking tweaks into broadly adopted tooling.
12 years of coding experience
7 years of employment as a software developer
Bachelor of Engineering (B.E.) Electronics and Information Engineering, Bachelor of Engineering (B.E.) Electronics and Information Engineering at Qingdao UniversityDoctor of Philosophy (Ph.D.) Electrical and Computer Engineering, Doctor of Philosophy (Ph.D.) Electrical and Computer Engineering at University of Iowa
English, Chinese
Github Skills (37)
administrator10
docker10
security-hardening10
admin10
vpn10
scripting10
debian10
docker-image10
ipsec10
centos10
keyv10
firewall10
linux10
bash10
openvpn10
Programming languages (12)
Github contributions (5)
hwdsl2/wireguard-install
May 2022 - Jan 2023
WireGuard VPN server installer for Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS, Fedora, openSUSE and Raspberry Pi OS
Role in this project:
DevOps Engineer
DevOps EngineerContributions:81 commits, 3 PRs, 231 pushes in 7 months
Contributions summary:Lin primarily contributed to improving the WireGuard VPN installer script, focusing on enhancing its reliability and user experience. Their work included updating the script's output, adding checks for system dependencies like `wget` and `iproute`, and implementing automatic installation with default options. They also refined the setup by optimizing sysctl settings for better performance, adding support for new operating systems and removing support for container installation.
rockyalmalinuxrocky-linuxshellvpn
hwdsl2/openvpn-install
May 2022 - Jan 2023
OpenVPN server installer for Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS, Fedora, openSUSE, Amazon Linux 2 and Raspberry Pi OS
Role in this project:DevOps Engineer
DevOps EngineerContributions:85 commits, 1 PR, 256 pushes in 8 months
Contributions summary:Lin primarily focused on improving the OpenVPN server installer script, with an emphasis on enhancing script reliability, output, and overall user experience. Their contributions include adding Amazon Linux 2 support, improving the reliability of package installations by retrying `apt-get update` commands, and optimizing the script's behavior when running on systems with multiple IP addresses or behind NAT. The user also introduced options for automatic installation and client configuration export, making the setup process more user-friendly.
nginxrockyalmalinuxrocky-linuxamazon-linux-2
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