Filipe Alvarenga
Founding Engineer at doubleslitapps.com
Miami Beach, Florida, United States
Summary
🤩
Rockstar🎓
Top SchoolFilipe Alvarenga is a founding engineer and seasoned iOS specialist with 12 years building production-ready mobile products and driving 0→1 engineering in startups and scale-ups. He’s a Swift expert who pairs deep native iOS experience (SwiftUI, UIKit, MVVM) with cross-stack fluency in React/Next.js, Node, and Flutter, and has shipped revenue-driving rewrites and mission-critical features for companies like Circuit and Peek. An early adopter of agentic AI coding tools, he combines practical AI-assisted workflows with hands-on craftsmanship to accelerate delivery while maintaining high quality. He’s contributed to prominent open-source projects such as Rocket.Chat’s iOS client—implementing resilient draft/message handling and UI improvements used by large organizations—and has a track record of improving performance, reliability, and UX in high-traffic apps. Comfortable as both solo founder-engineer and as a remote team leader, he champions asynchronous communication and high-ownership culture to sustain fast, scalable product development.
12 years of coding experience
12 years of employment as a software developer
Associate’s Degree Information Technology, Associate’s Degree Information Technology at Unisinos
Portuguese, English
Stackoverflow
71reputation
49kreached
3answers
1question
Github Skills (12)
swift10
uikit10
ios10
user-interface8
interface-design8
ui-design8
objective-c6
interface-builder6
cocoa-touch6
uipickerview6
uitextfield6
iphone6
Programming languages (8)
Github contributions (5)
RocketChat/Rocket.Chat.iOS
Nov 2017 - Dec 2018
Legacy mobile Rocket.Chat client in Swift for iOS
Role in this project:
iOS Mobile Developer
iOS Mobile DeveloperContributions:821 commits, 148 PRs, 191 pushes in 1 year 1 month
Contributions summary:Filipe contributed significantly to the Rocket.Chat iOS client by implementing and refactoring features related to draft message management and text input handling. Their work included the creation of a dedicated manager to handle draft message caching, enabling users to save and restore draft messages across sessions. They also integrated these features into the ChatViewController, modifying the text view behavior and ensuring proper handling of user input. The user also implemented a new UI screen to change the password.
rocketchatchat-clientchatrocketswift
filipealva/PickerView
Oct 2015 - Dec 2018
🔸 A customizable alternative to UIPickerView in Swift.
Contributions:117 commits, 21 PRs, 81 pushes in 3 years 3 months
customizableswiftiosuipickerviewpickerview
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