Lucas Reis
Lead Software Engineer at Lumenalta (formerly Clevertech)
Rio de Janeiro, Brazil
Summary
👤
Senior🎓
Top SchoolLucas Reis is a Lead Software Engineer based in Rio de Janeiro with 12 years of experience building mobile-first and full-stack products across media, enterprise, and open-source projects. He combines hands-on expertise in iOS/Android (Swift, Kotlin), React Native, and backend technologies (Node, Python, Elixir familiarity) with a track record of architecting apps and leading cross-platform teams—including guiding a 200k-user mobile game at Rede Globo. At Lumenalta he progressed from Senior to Lead, and his open-source contributions span notable projects like Mattermost Mobile and the popular Super Productivity app, where he improved UX and consistent UI behavior. A frequent mentor and former mobile development professor, he brings a pragmatic teaching mindset to technical leadership and developer enablement. Outside work he builds games and studies broadly, reflecting a continual self-directed learning habit that shows up in both code and team training initiatives.
12 years of coding experience
11 years of employment as a software developer
MIT on Mobile Development Desenvolvimento Mobile, MIT on Mobile Development Desenvolvimento Mobile at Instituto InfnetTechnical in Information Technology Programming in Java and .NET, Technical in Information Technology Programming in Java and .NET at Faculdade SENAI Fatesg
English, Spanish, French
Stackoverflow
461reputation
233kreached
17answers
1question
Github Skills (30)
task-management10
todolist10
javascript10
mobile-development10
react-native10
electron10
elixir10
testing10
typescript10
ui-design10
uid10
front-end-development10
typescript-types10
typescripts10
ecto10
Programming languages (11)
Github contributions (5)
pentacent/keila
Dec 2021 - Dec 2022
Open Source Newsletter Tool.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:25 reviews, 14 commits, 4 PRs in 1 year
Contributions summary:Lucas primarily contributed to the backend functionality of the Keila project. They focused on implementing features related to sender rate limiting, modifying the sender schema, and adding tests for campaign delivery. The user also worked on importing CSV files for contact management, and they added functionality to exclude bot user agents for tracking opens. Their work demonstrates a focus on enhancing the core functionality and reliability of the newsletter tool.
email-marketingnewsletter
mattermost/mattermost-mobile
Jun 2023 - Apr 2025
Next generation iOS and Android apps for Mattermost in React Native
Role in this project:Mobile Developer (iOS & Android)
Mobile Developer (iOS & Android)Contributions:22 reviews, 6 PRs, 69 comments in 1 year 9 months
Contributions summary:Lucas primarily focused on enhancing the Mattermost mobile application, specifically on iOS and Android platforms. Their contributions include refactoring the search results UI, implementing new features like audio playback and download capabilities for audio files in chat messages, and improving the overall user experience. They also fixed bugs related to the display of admin information in channel member lists and the functionality of clickable images within Markdown links.
next-generationreactandroid-appsreact-nativeandroid
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