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 (2014–2019). 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 – 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 – 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 – 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 – 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 Pro
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.
- Clipboard and camera capture with 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 (2014–2019)
Languages: Spanish (Native) · English (Full Professional)