Davis Koh is an engineering leader with 11 years of experience building mobile, backend and geospatial systems from startup to scale, currently managing Geo Experience at DoorDash in San Jose. He’s driven iOS architecture and navigation platforms across multiple roles at DoorDash, shipping Map SDKs, address autocomplete/geocoding, and vehicle navigation features. Equally comfortable in backend serverless engineering, he has contributed meaningful fixes to the popular Serverless Framework—improving dependency exclusion and deployment correctness. His background includes founding a community SaaS where he designed serverless Node.js microservices and indexed DynamoDB/MongoDB schemas, demonstrating full-stack product ownership. A pragmatic engineer, he pairs rigorous testing practices (100+ tests added at Hiatus) with performance-focused refactors that materially reduced code and improved delivery cadence. He brings a blend of hands-on coding, QA/test automation, and manager-level coaching that accelerates complex location-aware product development.
11 years of coding experience
9 years of employment as a software developer
Bachelor's Degree, Economics, cum laude, Bachelor's Degree, Economics, cum laude at New York University
Yoga is an embeddable layout engine targeting web standards.
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:14 commits, 2 PRs, 4 comments in 13 days
Contributions summary:Davis focused on enhancing the testing infrastructure of the Yoga layout engine. Their commits involved integrating the Karma test runner, configuring test files, and ensuring the tests run correctly. They addressed linting issues and refactored the test setup. The user also updated test files to be consistent with current project styles and included the testing of absolute positioning and flexbox.
⚡ Serverless Framework – Effortlessly build apps that auto-scale, incur zero costs when idle, and require minimal maintenance using AWS Lambda and other managed cloud services.
Role in this project:
Back-end Developer
Contributions:11 commits, 1 PR, 8 comments in 3 days
Contributions summary:Davis primarily focused on refactoring and improving the `zipService` component, specifically concerning the exclusion of dev dependencies. Their work included addressing lint issues, updating tests, and modifying the code to correctly identify and exclude `.bin` executables from the final deployment package. The user made several commits that addressed edge cases and improved the accuracy of the dependency exclusion logic within the Serverless framework. Their contributions directly improve the efficiency and correctness of serverless application deployments.
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Davis Koh - Engineering Manager, Geo Experience at DoorDash