Cherub Kumar
Founding Engineer at withQ
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolCherub Kumar is a founding engineer and seasoned software developer with 12 years of experience building cloud-native web applications from early support roles to senior engineering and startup leadership. Based in San Francisco, he spent a decade at Zendesk advancing from Tier 2 support to Senior Software Engineer, honing expertise in Ruby on Rails, Python, Java, SQL, Unix/Linux, and SaaS enterprise patterns. He combines hands-on backend craftsmanship with a pragmatic product sense—comfortable shipping scalable features and troubleshooting production issues across the stack. Now leading engineering at withQ, he brings both operational rigor from support engineering and architecture experience from large-scale SaaS. A University of Wisconsin–Madison CS graduate, he pairs solid academic fundamentals with a track record of turning customer-facing problems into reliable, maintainable systems.
12 years of coding experience
11 years of employment as a software developer
Bachelor of Science (BS), Computer Science, Bachelor of Science (BS), Computer Science at University of Wisconsin-Madison
Github Skills (22)
rack-middleware9
luhn9
coding9
code-coverage8
wrapper8
zendesk-api8
saas-application6
api6
rails6
ruby6
mobile5
zendesk5
api-client5
javascript5
algorithm5
Programming languages (6)
Github contributions (5)
quickserve-ai/gastown
Mar 2026 - Jul 2026
Gas Town - multi-agent workspace manager
Contributions:1 PR, 1574 pushes, 49 branches in 3 months
ckumar1/xv6-threads
Apr 2014 - Apr 2014
Contributions:31 commits in 4 days
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