Jake Bellacera
Senior Engineering Manager at Five9
Roseville, California, United States
Summary
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RockstarJake Bellacera is a senior engineering manager with 13 years of experience who specializes in frontend platform architecture, design systems, and building developer-friendly component libraries that scale. He has led teams through major product rewrites, acquisitions, and API migrations at Split, Harness, and Five9, delivering measurable improvements like 50% faster page loads and a 75% reduction in code complexity. Jake combines hands-on React and GraphQL architecture work with product and marketing experience, giving him an uncommon user-centered perspective on how technical choices drive business outcomes. He excels at coaching distributed, high-performing teams to ship pragmatic, maintainable solutions and has a track record of turning data-heavy features into clear customer-facing visualizations.
13 years of coding experience
11 years of employment as a software developer
English
Stackoverflow
884reputation
133kreached
21answers
5questions
Github Skills (90)
custom-theme10
twitter-bootstrap10
opengraph10
seo10
wordpress10
spark10
stylesheets10
analytics10
yoast10
xml-sitemap10
bootstrap10
bootstrap-components10
plugin10
react-components9
javascript9
Programming languages (10)
Github contributions (5)
delta-io/website
Jul 2021 - Oct 2022
Delta Lake Website
Contributions:14 reviews, 74 commits, 28 PRs in 1 year 2 months
delta-lake
jakebellacera/delta
May 2025 - Jan 2026
An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs
Contributions:2 reviews, 6 PRs, 43 pushes in 8 months
prestodbsparktrino
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