Leo Lavarias
Senior Full-stack Developer at IONA
Philippines
Summary
👤
Senior🎓
Top SchoolLeo Lavarias is a Senior Full-stack Developer based in the Philippines with 12 years of experience building mobile and web applications across Android, PHP backends (FuelPHP, CodeIgniter, Laravel), and modern front-end stacks including AngularJS and React. He combines hands-on server and database expertise (MySQL, MSSQL, Firebase, MongoDB, SQLite) with practical DevOps and system administration experience from roles managing Linux servers and payment integrations. At IONA and Bywave he has driven full-stack projects and product features, while earlier roles honed Android and PHP-driven mobile/web solutions for clients and startups. An active contributor to DefinitelyTyped, he improved TypeScript typings for the lesgo framework and added AWS integrations, demonstrating a commitment to developer experience and type safety. Known for pragmatic problem-solving, Leo blends legacy PHP ecosystems with contemporary JavaScript tooling to ship reliable, production-ready software.
11 years of coding experience
2 years of employment as a software developer
Bachelor of Science (BS), Information Technology specialized in Software Enginerring, Bachelor of Science (BS), Information Technology specialized in Software Enginerring at University of the Immaculate ConceptionDavao City Special National High School
Filipino, English
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (18)
typescript10
typescript-definitions10
type-definition10
typescript-types10
typescripts10
aws-sdk9
dynamodb9
amazon-dynamodb9
elasticsearch8
elasticsearch-api8
firebase8
elasticsearchquery8
aws-elasticsearch8
amazon-elasticsearch8
testing7
Programming languages (9)
Github contributions (5)
DefinitelyTyped/DefinitelyTyped
Jul 2021 - Feb 2022
The repository for high quality TypeScript type definitions.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 5 commits, 5 PRs in 6 months
Contributions summary:Leo primarily contributed to the definition of TypeScript type declarations for the "lesgo" framework within the `definitelytyped` repository. This involved adding initial setup, type declarations for various functionalities like middlewares, exceptions, services, and utilities, and also included tests and type definitions for integrations with AWS services. The user's work ensured type safety and improved the developer experience for using the lesgo framework. Additionally, the user fixed bugs, improved formatting, and updated dependencies related to the lesgo types.
typescript-definitionstype-definitionshigh-qualitydtsdefinitions
xXLXx/lesgo-framework
Jun 2021 - Mar 2025
Core framework for lesgo.
Contributions:6 PRs, 55 pushes, 26 branches in 3 years 9 months
frameworksframeworkcore-framework
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