Danni Ballena
Senior Frontend Engineer at Atmosfy
Los Angeles, California, United States
Summary
👤
Senior🎓
Top SchoolDanni Ballena is a Senior Frontend Engineer based in Los Angeles with 7 years of experience building JavaScript-first applications using React, Redux, and React Native. She has moved between startup and growth-stage environments—most recently at Atmosfy after a stint as a founding full-stack engineer at Arrange—bringing product-focused front-end architecture to fast-moving teams. Her background includes creating developer tooling like GraphnomiQL, where she designed an Electron-based React UI and recursive parsing algorithms to visualize and edit GraphQL schemas. Prior to software, she managed $100M in assets as a financial planner, giving her a rare combination of technical depth and domain fluency in quantitative concepts and client-driven decision making. Colleagues rely on her to translate complex data structures into interactive, usable interfaces and to ship reliable features under tight timelines. She’s equally comfortable diving into SVG graph rendering details as she is shaping product trade-offs.
7 years of coding experience
4 years of employment as a software developer
Business Adminstration - Finance, Business Adminstration - Finance at Vancouver Island University
Chinese, English
Github Skills (14)
visualizer8
api7
graph6
graphiql5
visualization5
javascript5
graphql-api4
graphql4
exchange3
react3
nodejs3
apply1
fonts1
font-family1
Programming languages (2)
Github contributions (5)
GraphnomiQl/GraphnomiQL
Dec 2018 - Jan 2019
GraphnomiQL is an Interactive Visualizer for GraphQL API
Contributions:46 commits, 30 PRs, 15 pushes in 24 days
apigraphql-apivisualizerjavascriptgraphiql
we-are-axolotls/project-chaxolotl
Dec 2018 - Jun 2020
Contributions:4 PRs in 1 year 6 months
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