Xavier Valarino
Founding Engineer & Product Designer at Greenline
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolXavier Valarino is a founding engineer and product designer based in San Francisco with 11 years of experience shaping practical, end-to-end user experiences for startups and large platforms. He blends qualitative user research, interaction design, prototyping, and analytics to deliver products that are both ergonomic for developers and intuitive for end users—work demonstrated across roles at Pinterest, Tonic.ai, and as a freelance designer on projects from genomic testing to flood-risk mapping. A hands-on collaborator, Xavier has contributed front-end improvements to notable open-source projects like DuckDuckGo’s Instant Answers, showing attention to detail in UI, accessibility, and developer ergonomics. He’s equally comfortable sketching flow diagrams or shipping production-ready components, and brings a maker’s background (CNC, shop skills) that informs a pragmatic, build-to-validate design approach.
11 years of coding experience
9 years of employment as a software developer
Double - Bachelor of Arts (B.A.) Art & Spanish, Double - Bachelor of Arts (B.A.) Art & Spanish at UC Santa Barbara
English, Spanish
Github Skills (11)
markdown10
javascript10
markdown-it10
front-end-development10
handlebars10
api9
css9
apim9
duckduckgo8
instantsearch8
questions-and-answers8
Programming languages (13)
Github contributions (5)
duckduckgo/zeroclickinfo-spice
Mar 2016 - May 2016
DuckDuckGo Instant Answers based on JavaScript (JSON) APIs
Role in this project:
Front-end Developer
Front-end DeveloperContributions:14 commits, 1 PR, 17 comments in 1 month
Contributions summary:Xavier primarily focused on enhancing the front-end of the DuckDuckGo Instant Answers feature for Coderwall within the `zeroclickinfo-spice` repository. Their contributions included refactoring the Handlebars helper to parse markdown descriptions, adding image support, and implementing a custom HTML trimming helper. They also addressed CSS and code style guidelines, updated API endpoint integration, and made minor fixes to match Coderwall API changes.
apijsjavascriptduckduckgoinstant-answers
xaviervalarino/dotfiles
Mar 2016 - Dec 2022
Contributions:1018 commits, 567 pushes, 28 branches in 6 years 10 months
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