Jeff Mealo
Senior Software Engineer at Gisual
Pennsylvania, United States
Summary
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Rockstar🎓
Top SchoolJeff Mealo is a Senior Software Engineer based in Pennsylvania with 13 years of experience building backend systems, developer tooling, and infrastructure optimizations. He pursues simple solutions to complex problems across event sourcing, functional programming, machine learning and IoT, and is a longtime advocate of PostgreSQL and open source software. At Shutterstock he reverse-engineered undocumented tax flows, led a migration that cut $400K/year in address validation costs, engineered multi-architecture Docker CI/CD to enable Apple Silicon support, and contributed fixes upstream to the npm CLI. Earlier at Gopuff he shrank database size 7.5x with CitusDB for sub-100ms queries, created the first open-source Android emulator CI solution, and landed observability fixes merged into Microsoft’s Node.js instrumentation. His open-source work spans back-end libraries like twig.js (adding filters and iterable tests) and security-minded backports of CVE fixes, while his hands-on breadth includes rapid front-end learning (self-taught React), session-at-the-edge patterns, and real-time DB change streaming. Practical and cost-conscious, he’s repeatedly translated novel ideas into production savings—from a $300K infrastructure reduction for a school to distributed, low-latency architectures—making him as comfortable optimizing queries as building developer-facing tooling.
13 years of coding experience
15 years of employment as a software developer
Bachelor of Business Administration (B.B.A.), Bachelor of Business Administration (B.B.A.) at West Chester University of Pennsylvania
Stackoverflow
498reputation
65kreached
7answers
3questions
Github Skills (15)
unit-testing10
javascript10
javascripts10
twig10
templating10
data-manipulation9
debugging6
plpgsql6
plugins6
plv86
materialized-views6
postgresql6
database6
command-line6
intellij-idea6
Programming languages (25)
Github contributions (5)
twigjs/twig.js
Jun 2014 - Feb 2015
JS implementation of the Twig Templating Language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 15 comments in 8 months
Contributions summary:Jeff primarily contributed to the implementation of new features and functions within the Twig.js templating library. Their work included adding a batch filter, round filter, and random function, enhancing the library's capabilities. They also improved the functionality by implementing a test for iterable data types and matching PHP functionality for the random function. Additionally, the user added dist files, likely related to build and distribution processes.
template-enginetwigtemplatingphptemplating-language
jmealo/cloudnative-pg
Nov 2024 - Mar 2025
CloudNativePG is a comprehensive platform designed to seamlessly manage PostgreSQL databases within Kubernetes environments, covering the entire operational lifecycle from initial deployment to ongoing maintenance
Contributions:1 review, 2 PRs, 66 pushes in 3 months
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