Daniel Williams
Senior Frontend Developer at Callstack
Porto, Porto, Portugal
Summary
🤩
Rockstar🎓
Top SchoolDaniel Williams is a Senior Frontend Developer based in Porto with 10 years of full-stack experience, specializing in TypeScript-driven web and mobile applications. He builds and maintains cross-platform React Native solutions and design systems, having shipped shared mono-repo architectures and universal components for multiple products. An active open-source maintainer, he contributes to the widely used Storybook project—improving React Native CLI, initialization, and setup workflows—while working at Callstack and Storybook-related orgs. His background spans dev-ops, backend services (Node.js, Elixir) and frontend frameworks, giving him a pragmatic end-to-end view that speeds delivery and reduces integration friction. Notably, he’s led both frontend design-system efforts and a CMS backend project, reflecting a rare blend of UI craftsmanship and systems-level ownership.
10 years of coding experience
11 years of employment as a software developer
Bachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Royal Holloway, University of LondonHigh School secondary school education, High School secondary school education at Blue coat C of E School
English, Portuguese
Stackoverflow
935reputation
66kreached
25answers
4questions
Github Skills (19)
javascript10
react-native10
storybook10
typescript10
typescript-types10
typescripts10
ui-design9
react9
cli8
testing8
react-navigation-v56
react-navigation6
linux6
amazon-web-services6
boto6
Programming languages (12)
Github contributions (5)
storybookjs/storybook
Oct 2022 - Jan 2023
Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:12 reviews, 3 commits, 43 PRs in 2 months
Contributions summary:Daniel primarily contributed to the React Native implementation of Storybook, making adjustments and fixing issues related to the CLI and core functionality. Their work included modifying the React Native initialization scripts for v6, updating logging and package resolution, and fixing build issues. The user also focused on improving the setup process for React Native projects.
storybooktestingui-componentsstyleguidewebpack
dannyhw/addon_react_native_web_example
Oct 2021 - May 2022
An example of the storybook addon in action
Contributions:13 commits, 2 PRs, 9 pushes in 6 months
storybook-addon
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