Tom Denham
Staff Software Engineer at Vanta
San Francisco, California, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolTom Denham is a Staff Software Engineer with 13 years of experience building and hardening cloud-native networking for containers, currently based in San Francisco. He has a strong track record in backend and DevOps engineering across prominent OSS projects like Calico, CNI, Moby, and flannel, contributing networking features, CI/CD improvements, and cross-platform build automation. At Tigera and Project Calico he blended hands-on engineering with release management and documentation, helping deliver zero-trust networking and compliance tooling used in major clouds. His contributions show a practical focus on reliability—static routes, interface route fixes, and robust retry/packaging changes recur across repos—plus occasional project governance work such as CLA and release script changes. Known for improving build systems and dependency management (e.g., vendoring strategies and Makefile automation), he pairs low-level networking expertise with operational rigor. He studied Computer Systems and Software Engineering at the University of York and brings an engineer’s attention to detail across both code and release processes.
13 years of coding experience
13 years of employment as a software developer
King Edwards VI CollegeComputer Systems and Software Engineering, Computer Science, Computer Systems and Software Engineering, Computer Science at University of YorkElmfield Rudolf Steiner School
French, German
Stackoverflow
2,399reputation
189kreached
9answers
25questions
Github Skills (70)
url-routing10
jitsi10
python10
testing10
javas10
flannel10
netlink10
backend10
dockers10
cli-application10
front-end-development10
kubernetes-pods10
sh10
shell10
cli-tools10
Programming languages (14)
Github contributions (5)
flannel-io/flannel
May 2016 - Nov 2018
flannel is a network fabric for containers, designed for Kubernetes
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:11 releases, 271 commits, 298 PRs in 2 years 6 months
Contributions summary:Tom's commits primarily revolve around refactoring build processes and dependency management. They updated the vendoring strategy from Godeps to vendor directories. A significant portion of the changes involved integrating the AWS SDK, along with several other library updates. They also introduced various automation improvements using Makefiles, and expanded the range of supported platforms.
containersdocker-imagefabricoverlay-networkflannel
projectcalico/calicoctl
Jan 2015 - Sep 2018
Calico CLI tool
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:30 releases, 786 commits, 511 PRs in 3 years 8 months
Contributions summary:Tom contributed to the `calicoctl` project, which is a CLI tool. Their commits indicate work related to configuring the Calico networking, including adding IP addresses to containers and managing profiles for security groups. The contributions involved code changes in multiple files, including Python scripts and shell scripts, and a mix of infrastructure and back-end tasks. The user's commits involve manipulating networking configurations.
calicocli-toolcli
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