Rob Van Gennip
Staff Software Developer at Shopify
Old Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolRob Van Gennip is a Staff Software Developer with 11 years of experience building and scaling APIs, currently focused on GraphQL and API reliability at Shopify. He played a key engineering and mentorship role during Wave’s turnaround and eventual acquisition, demonstrating strength in stabilizing products and guiding teams through high-stakes technical challenges. An active GraphQL community contributor and speaker, he maintains work in graphql-ruby including static validation features that improve runtime safety for large schemas. Based in Old Toronto, he balances deep technical craft with hands-on mentoring and a curious, practical approach to systems design. Outside work he’s a husband and father who recharges with racket sports, FPS gaming, and outdoor activities—preferences that reflect both competitive drive and teamwork.
11 years of coding experience
11 years of employment as a software developer
Bachelor of Computer Science with Software Engineering Option, Co-op, Bachelor of Computer Science with Software Engineering Option, Co-op at University of Waterloo
Stackoverflow
1reputation
0reached
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Github Skills (6)
testing10
graphql10
graphql-ruby10
wordpress-graphql10
wpgraphql10
ruby10
Programming languages (5)
Github contributions (5)
rmosolgo/graphql-ruby
Nov 2020 - Jun 2022
Ruby implementation of GraphQL
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 reviews, 15 commits, 12 PRs in 1 year 6 months
Contributions summary:Rob implemented features related to static validation of GraphQL queries in the `graphql-ruby` project. Their contributions include introducing a static validation timeout option, adding a validation timeout error class, and integrating the timeout into the validation pipeline. They also added a configuration option to the schema to set the validation timeout, along with corresponding tests and integration adjustments.
relayrailsrubygraphqlgraphql-ruby
ravangen/graphql-rate-limit
Oct 2018 - Nov 2022
🚦 Fixed window rate limiting middleware for GraphQL. Use to limit repeated requests to queries and mutations.
Contributions:128 reviews, 129 commits, 318 PRs in 4 years 2 months
graphql-directivejavascriptrate-limiterfixed-windowrate-limiting
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