My Story
I'm a Senior iOS Engineer with 7 years shipping consumer apps across iOS, iPadOS,
watchOS and macOS. Today I'm the Tech Lead of a 7-person product team building a
consumer social app, where I own the iOS application end to end: architecture,
SwiftUI feature delivery, monetization, analytics and App Store releases.
I have deep experience with audio and realtime media playback, multithreading with
Swift Concurrency and GCD, and CI/CD automation for build, signing and release.
I've taken products from inception to production repeatedly, including my own apps
shipped solo on the App Store, and I make product decisions with data: event taxonomy,
funnels, retention and A/B tests on pricing and paywalls.
My journey started with Computer Engineering at the University of Informatics Sciences
in Havana, Cuba (2014 to 2019). Since then I've worked across very different products,
from a national-scale messaging app and a food delivery driver app to live video
surveillance, VoIP telephony and a consumer social network, always holding the bar
for quality that the Apple ecosystem demands.
Experience
Tech Lead and iOS Engineer, Conexxxion (Initium USA Corp)
Aug 2024 to present · Remote, United States · Consumer social app · App Store
- Own the iOS application end to end: architecture, feature delivery in SwiftUI, App Store releases and production incident response, on a fast weekly shipping cadence.
- Lead key engineering and product decisions for a cross-functional team of 7 across iOS, Android, backend and QA: technical direction, delivery planning and code review.
- Built the product analytics layer in Amplitude (event taxonomy, funnels, retention, session replay) and use it to shape the roadmap with data.
- Ran A/B tests on pricing and paywalls with App Store Connect and RevenueCat experiments, driving monetization decisions from results rather than opinion.
- Built the subscription layer with StoreKit 2 and RevenueCat: promotional offers, trial entitlements and influencer attribution via AppsFlyer OneLink.
- Designed and led an authentication migration from SMS signup to linked social providers, removing SMS costs and failure modes while simplifying account recovery.
- Implemented automated image moderation (SightEngine) and resolved App Store and Google Play policy rejections on user-generated content; shipped a remote force-update system via Firebase Remote Config.
Senior iOS Engineer, Anteklab
Nov 2022 to present · Remote, Italy · Live video surveillance and VoIP telephony
- Own iOS delivery for two realtime media products: AylookPro (live video surveillance) and AbilisPhone (VoIP telephony).
- Integrated and maintained GStreamer-based multimedia playback with bandwidth-adaptive quality for live and recorded streams over constrained networks.
- Built and maintained CI/CD pipelines on Azure DevOps and GitLab CI with a self-hosted macOS runner, automating builds, code signing and TestFlight and App Store distribution.
- Refactored high-churn modules around SOLID principles with dependency injection (Swinject) and extended unit test coverage on critical paths.
- Diagnosed and resolved production stability and performance issues with Instruments, protecting core flows through a frequent release cycle.
- Implemented OAuth 2.0 flows against multiple identity providers (GitLab, Microsoft Azure AD) and owned the macOS distribution pipeline for a desktop app: signing, hardened runtime, notarization.
iOS Developer, Grupo Salinas / UPAX
Nov 2021 to Nov 2022 · Mexico City, Mexico · Food delivery driver app
- Delivered onboarding, document upload and zone activation flows for a production app used daily by delivery drivers across Mexico.
- Integrated Firebase and Firestore for realtime updates, MapKit and Google Maps for live routing, and AWS Cognito plus third-party facial verification for driver identity checks.
iOS Developer, University of Informatics Sciences (ToDus)
Sep 2019 to Nov 2021 · Havana, Cuba · National-scale messaging app
- Built an XMPP framework in Swift from scratch and managed concurrent event handling with GCD to keep messaging responsive for a nationwide user base.
- Migrated UIKit screens to SwiftUI and enabled Catalyst targets for iPadOS and macOS; supported releases through App Store Connect and TestFlight.
Independent Work
Kist: AI antique identifier
Product page · App Store
- Built solo: identifies antiques and second-hand finds from a photo, returning era, material and an honest value range with a confidence meter instead of a fake precise number.
- SwiftUI and SwiftData with CloudKit: collections with notes, on-device storage with user-owned iCloud sync and export.
- Backend behind a Cloudflare Worker proxy with tiered vision models (cheap model first, escalating on low confidence) at roughly one cent per identification.
- Product shaped by researching thousands of competitor reviews: transparent freemium with 5 free identifications, no ads, no auto-charging trials.
ClipCard: Paste Keyboard
Product page · App Store
- Taken from idea to the App Store solo: product definition, design, SwiftUI development, StoreKit 2 monetization, CI/CD and App Review.
- A custom iOS keyboard extension that pastes saved data into any app with no network access and without touching the clipboard, backed by a vault with camera capture, tagging, contact association, iCloud sync and biometric protection.
Core Competencies
Languages and UI
SwiftSwiftUIUIKitAuto Layout
Multithreading
Swift Concurrency (async/await)GCDCombineRxSwift
Audio and media
AVFoundationGStreamer-based playbackBandwidth-adaptive streaming
Apple platforms and frameworks
iOSiPadOSwatchOSmacOS (Catalyst)CloudKitStoreKit 2Core MotionMapKit
Architecture and quality
SOLIDMVVMVIPERDependency Injection (Swinject)XCTestInstruments profilingProduction debugging
CI/CD and delivery
GitLab CI/CD (self-hosted macOS runner)Azure DevOpsAutomated code signingTestFlightApp Store ConnectSPMCocoaPods
Product and monetization
AmplitudeRevenueCatA/B testingAppsFlyerFirebase Remote Config
Backend and realtime
Firebase (Firestore, Auth, Remote Config)WebSocketXMPPAWS (Cognito, Amplify)REST
Version control
GitTrunk-based and Git FlowCode review workflows
Education & Languages
Computer Engineer, University of Informatics Sciences (UCI), Havana, Cuba (2014 to 2019)
Languages: Spanish (Native) · English (Full Professional)