Devon Stewart
Staff Product Engineer at Wander
Walnut Creek, California, United States
Summary
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Rockstar🎓
Top SchoolDevon Stewart is a Staff Product Engineer based in Walnut Creek with 14 years of experience spanning DevOps, network engineering, and software architecture. He combines hands-on engineering with leadership experience as VP of Engineering and multiple senior roles, driving improvements in tooling, developer experience, and system reliability at companies from Twilio to Replit. A pragmatic polyglot, Devon focuses on reducing friction and tech debt incrementally rather than pausing delivery, and he enjoys mentoring junior engineers and giving impromptu technical talks. He is an active open-source contributor in the Scala ecosystem, improving authentication and code-generation tooling in notable projects like http4s, guardrail, and caliban. Outside the obvious, he favors tooling that fails fast and advocates writing less code—an approach reflected in both his open-source work and production architecture choices.
14 years of coding experience
15 years of employment as a software developer
Computer Science, Computer Science at Pierce College
English, Japanese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (20)
apidoc10
api-design10
authentication10
sbt10
user-authentication10
wpgraphql10
scala10
code-generation10
api10
wordpress-graphql10
cat10
graphql10
functional-programming10
openapi10
concurrency10
Programming languages (26)
Github contributions (5)
guardrail-dev/guardrail
Sep 2017 - Oct 2022
Principled code generation from OpenAPI specifications
Role in this project:
Back-end Developer
Back-end DeveloperContributions:86 releases, 348 reviews, 2747 commits in 5 years 1 month
Contributions summary:Devon primarily contributed to the core functionality of the project, focusing on Scala code generation from OpenAPI specifications. They were involved in resolving testing issues by fixing tests, and ensuring that code formatting and the handling of edge cases such as empty string or missing parameters were handled correctly. The changes indicate a focus on improving the code generation process for defining APIs and related server functionalities.
code-generationdropwizardcodegenakka-httphttp4s
ghostdogpr/caliban
Jun 2021 - Aug 2021
Functional GraphQL library for Scala
Role in this project:Back-end Developer
Back-end DeveloperContributions:22 reviews, 8 commits, 10 PRs in 2 months
Contributions summary:Devon primarily focused on enhancing the `caliban` library, a functional GraphQL library for Scala. Their contributions involved refining client code generation, specifically fully qualifying field names in the `ClientWriter`. They also added support for scalar mappings with enumerations, exposed enumeration members and values, and made adjustments to the sbt plugin to improve code generation. These changes indicate a focus on improving the library's code generation capabilities and usability.
graphql-clientfunctional-programminggraphql-librarygraphql-serverscala
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