Fabrício Masiero
Staff / Lead Apple Platforms Engineer at Backtrack (Yac, Inc.)
About
Experience
Staff / Lead Apple Platforms Engineer
Backtrack (Yac, Inc.)
January 2023 - Present
- Built the original iOS app in a compressed timeline, unlocking ~$2M in enterprise revenue and landing major customers. - Architected audio recording with AVFoundation, AVAudioSession, AVAudioEngine, AVAssetWriter, segmented M4A export, and background-safe recovery (interruptions, route changes, Bluetooth, long sessions). - Shipped SwiftUI flows for real-time meeting states, scan mode, hosted-buyer experience, sponsor/ad screens, and Dynamic Island/live status. - Integrated WebSocket-driven remote commands (pause, resume, export, snapshots, device actions) coordinated across recording and UI state machines. - Hardened production with Sentry, feature flags, structured logging, and crash triage; supported live high-pressure events without rollback.
Senior Apple Platforms Engineer
FloSports
August 2022 - January 2023
- Built athlete profile features (Swift, UIKit, Combine) improving access to athlete data across the iOS app. - Shipped tracking, metrics, and experimentation surfaces that fed product and revenue decisions. - Contributed across CI/CD, code review, and release delivery in a distributed team.
Senior Apple Platforms / SDK Engineer
Super Hi-Fi
September 2020 - May 2022
- Built a custom Swift SDK for online/offline radio streaming — playback, downloads, offline access, deletion — used by enterprise partners including Peloton. - Developed a Sonos iOS app from scratch (Swift, UIKit, Combine, Swift Concurrency, AVFoundation, AVPlayer) with CarPlay and AirPlay support. - Partnered with the CTO and architecture leads on SDK boundaries, API direction, and POCs for strategic partner demos.
Lead iOS Engineer
Somos Educação — Plurall
June 2017 - September 2020
- Led iOS engineering for Plurall, one of Brazil's largest education apps — 1M+ active users across studying, homework, exams, and offline handouts. - Owned architecture and delivery for major features using Swift, Fastlane, and CI/CD; mentored engineers and shaped API direction with backend and product.
Senior/Lead iOS Developer
AppFactory
November 2014 - June 2017
iOS Developer
Mowa Mobile
July 2014 - November 2014
Lead iOS Developer & Tech Specialist
Mistika Post
March 2013 - July 2014
Education
Bachelor
Estácio de Sá, São Paulo
January 2016 - January 2020
Field: Computer Science
Skills
Advanced
Expert
Intermediate
Projects
Spotti
January 2020
Solo-built iOS app for location and entertainment discovery.
StayFocus
January 2020
Cross-platform SwiftUI Pomodoro and focus-sound app using WidgetKit and Swift Concurrency.
Programando Para Maçã Cast
January 2020
Host of a podcast helping Brazilian Apple developers grow their careers and reach global opportunities.
Writing
January 2020
Author on Medium (Mac O'Clock) and dev.to covering Swift, SwiftUI, and iOS architecture.
Contact Information
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