Tom Viehman
Senior Member Of Technical Staff at VMware
Oakland, California, United States
Summary
🤩
Rockstar🎓
Top SchoolTom Viehman is a Senior Member of Technical Staff with a decade of experience building and hardening backend systems for cloud-native platforms, currently based in Oakland, CA. He brings deep expertise in CLI and controller tooling, with notable open-source contributions to flagship Cloud Foundry projects—implementing robust parsing/validation, improving manifest handling, and strengthening unit/integration test coverage for staging, deployments, and command-line option parsing. At VMware and Pivotal he has focused on code cleanup, refactoring and improving developer-facing tooling, demonstrating an eye for long-term maintainability alongside shipping fixes. His background spans both backend engineering and DevOps concerns, from director-level deployment logic to nuanced CLI argument handling. An Oberlin-educated engineer who started building real systems in Perl/MySQL and grew into large-scale cloud infrastructure, he pairs pragmatic operational experience with a consistent track record in respected open-source ecosystems.
10 years of coding experience
5 years of employment as a software developer
Bachelor's Degree, Computer Science, East Asian Studies, Bachelor's Degree, Computer Science, East Asian Studies at Oberlin College
English
Github Skills (23)
bosh10
cloud-foundry10
testing10
rspec10
command-line-interface10
go-testing10
ruby10
go10
argument-parsing10
yaml10
command-line10
backend10
cli10
api-design9
unit-testing9
Programming languages (9)
Github contributions (5)
cloudfoundry/bosh
Aug 2016 - May 2018
Cloud Foundry BOSH is an open source tool chain for release engineering, deployment and lifecycle management of large scale distributed services.
Role in this project:
Backend Developer & DevOps Engineer
Backend Developer & DevOps EngineerContributions:270 commits, 11 PRs, 276 pushes in 1 year 8 months
Contributions summary:The user, Tyler Schultz, primarily focused on modifying and refactoring the BOSH director code. Their contributions involved removing unused dependencies and renaming classes, such as renaming templates to jobs within the instance group class. Additionally, the user was involved in improvements related to the deployment output by replacing "Updating job" with "Updating instance". These changes indicate a focus on code cleanup and refactoring, alongside adjustments to the deployment process.
foundryboshpcfchainengineering
cloudfoundry/cli
Mar 2018 - Jul 2021
The official command line client for Cloud Foundry
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 release, 277 commits, 17 PRs in 3 years 4 months
Contributions summary:Tom contributed to the Cloud Foundry command-line interface (CLI) by implementing and improving various features. Their work focused on the unit and integration testing of the code, specifically related to application staging, deployments, service bindings, and network policies. The user also fixed issues related to command-line arguments. The user's work was primarily focused on the backend and associated testing of the cli.
foundrycf-clicloud-foundrycloud-foundry-clicli
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