Alex Holland
Senior Systems Engineer at Cloudflare
Ann Arbor, Michigan, United States
Summary
🤩
Rockstar🎓
Top SchoolAlex Holland is a Senior Systems Engineer with nine years of experience building and operating large-scale authentication and network-scanning systems, currently at Cloudflare after leading SSO engineering at Duo Security. He drove production SAML/OIDC services serving 8k+ customers and 24M+ authentications per month, achieving five-nines availability while leading a six-engineer subteam and enabling rapid third-party integration. His background in internet-wide scanning (creator/contributor to ZGrab/ZMap projects) informs a strong ops-oriented approach to backend reliability, protocol compliance, and high-performance tooling. Comfortable across SRE and software engineering boundaries, he has repeatedly cut CI times, built Docker-based developer environments, and implemented complex refactors to scale teams and integrations. Based in Ann Arbor and trained at the University of Michigan, he blends research-driven networking expertise with pragmatic product delivery.
9 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at University of Michigan College of EngineeringKenowa Hills High School
English
Stackoverflow
3reputation
44reached
0answers
1question
Github Skills (16)
c1710
network-scan10
go10
c1110
smb10
network-programming10
apidoc9
system-design9
performance-optimization9
command-line-interface9
api9
configuration-management9
debug8
json8
debugging8
Programming languages (5)
Github contributions (5)
zmap/zgrab2
Apr 2017 - Jul 2018
Fast Application Layer Scanner
Role in this project:
Backend Developer
Backend DeveloperContributions:53 commits, 8 PRs, 38 pushes in 1 year 2 months
Contributions summary:Alex primarily worked on adding features and improving the functionality of the "zgrab2" application. They started the implementation of command-line arguments and then added support for multiple protocols and custom parsing configurations. Their work included changes in core configuration files to set up the worker/controller structure, including the initialization of modules and creation of an output format.
golangscannersecuritygo-applicationapplication-scanner
zmap/zgrab
Feb 2017 - Nov 2017
**DEPRECATED** This project has been replaced by https://github.com/zmap/zgrab2
Role in this project:Back-end Developer
Back-end DeveloperContributions:19 commits, 23 PRs, 37 pushes in 9 months
Contributions summary:Alex primarily focused on improving the zgrab project's functionality and compliance. They made SMTP, IMAP, and POP3 RFC compliant by adding QUIT/CLOSE statements to the respective protocols. Further, they refactored the project by removing dependencies and unused code, improving maintainability. The user also implemented SMB protocol support for the project.
zmap
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