Leonel Gasparrini
Senior Software Engineer at SWARE
Río Cuarto, Córdoba, Argentina
Summary
👤
Senior🎓
Top SchoolLeonel Gasparrini is a Senior Software Engineer with 12+ years building and scaling full-stack web applications, specializing in Ruby on Rails and React. He has led platform consolidation and payment integration efforts at scale—maintaining apps that serve 1M+ users while unifying checkout systems across acquisitions. Comfortable owning architecture end-to-end, he’s solved critical production incidents, optimized PostgreSQL and Elasticsearch performance, and improved developer experience through pragmatic tooling and test-driven practices. He excels in distributed teams across Argentina, the US, Spain and Uruguay, adapting quickly to new domains and fast-paced project rotations. Early career work includes leading a city council digital transformation where he designed a workflow platform from scratch, demonstrating both stakeholder-driven product thinking and hands-on delivery. Passionate about performance and products that matter, he focuses on shipping maintainable code that delivers measurable user impact.
12 years of coding experience
12 years of employment as a software developer
Engineer’s Degree Computer Software Engineering, Engineer’s Degree Computer Software Engineering at Universidad Nacional de Río Cuarto
Spanish, English
Stackoverflow
160reputation
24kreached
11answers
3questions
Github Skills (115)
dialog10
sweetalert10
popup10
fuzzy-logic9
vimscript9
quickfix9
ruby9
snake-case9
buffer9
tfs9
cat9
alerts9
macos9
giphy9
package-manager9
Programming languages (8)
Github contributions (5)
jlgasparrini/jlgasparrini.github.io
Mar 2016 - Mar 2019
Contributions:1 push, 2 issues in 2 years 11 months
jlgasparrini/react-tuto
Feb 2016 - Sep 2017
Contributions:2 PRs, 3 pushes, 10 branches in 1 year 6 months
reactjsreactreactjs-tutorial
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