Leandro Pereira
Elixir Engineer at Supabase
Canada
Summary
🤩
Rockstar🎓
Top SchoolLeandro Pereira is an Elixir engineer and staff-level technologist with 13+ years of professional experience and a 15+-year track record delivering scalable systems from prototype to production. He combines deep Elixir and Phoenix/LiveView expertise with a Rust enthusiasm and a pragmatic business mindset, shaping product roadmaps and aligning engineering work with measurable outcomes. As the architect and lead maintainer behind Beacon CMS, he turned a proof-of-concept into a production-ready, SEO-optimized open-source project with hundreds of thousands of downloads and a small-resource deployment footprint. He has contributed meaningful fixes and features upstream across core Elixir projects (Elixir, Phoenix, LiveView, Ecto, Plug), improving developer ergonomics and reliability. Comfortable operating across frontend, backend, and infrastructure, he’s delivered cost-efficient cloud architectures, five‑nines uptime, and zero-downtime pipelines for real user workloads. Colleagues value his mentorship, ability to scale teams and systems, and knack for turning complex technical constraints into pragmatic, high-impact solutions.
13 years of coding experience
19 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Universidade Paulista
English, Portuguese
Stackoverflow
51reputation
770reached
2answers
0questions
Github Skills (44)
cms10
database-connector10
debug10
parser10
postgresql10
mixing10
back-end-development10
elixir10
mixnet10
testing10
query-optimization10
adaptor10
el10
mixture10
database-driver10
Programming languages (14)
Github contributions (5)
BeaconCMS/beacon
Nov 2022 - Jan 2023
Open-source Content Management System (CMS) built with Phoenix LiveView. Faster render times to boost SEO performance, even for the most content-heavy pages.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:14 releases, 230 reviews, 31 commits in 2 months
Contributions summary:Leandro contributed significantly to the Beacon CMS project, demonstrating a strong understanding of both front-end and back-end development. They upgraded the Elixir and LiveView dependencies and integrated Tailwind CSS, showing proficiency in the project's core technologies. Furthermore, the user implemented and refactored features related to page helpers, asset management and admin interface, improving the CMS's functionality and user experience.
cmsmanagement-systemrenderphoenix-frameworktimes
elixir-ecto/ecto_sql
Nov 2018 - May 2022
SQL-based adapters for Ecto and database migrations
Role in this project:Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:7 reviews, 5 commits, 6 PRs in 3 years 6 months
Contributions summary:Leandro primarily contributed to the `ecto_sql` repository, focusing on enhancements and bug fixes related to database adapter implementations. Their work included adding support for EXPLAIN statements, which aid in query optimization, and fixing indentation issues. They also added functionality to the TDS adapter and implemented table formatting. Furthermore, they addressed potential issues in the handling of boolean values within the Postgres adapter.
sqlelixiradaptersdatabase-migrationsdatabase
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