Oleksandr Hrabovskyi

Sole owner of CoreLocation/CoreMotion/CoreBluetooth drive detection engine for an iOS mileage tracker, improving trip segmentation accuracy ~6% and maintaining high Drive Quality Index while introducing dual-SDK feature flags to accelerate releases.

Sole iOS developer who revamped 95% of UI with SwiftUI, delivered an AR session recording feature that increased investor engagement, and built an MVP for a custom furniture diorama while beginning Apple Vision Pro support.

Led iOS development for an acquired e-commerce app, improving stability to 99.8% and raising app rating from 3.4 to 4.6 through significant bug reduction and quality improvements while managing releases and roadmaps.

Led iOS across three projects using SwiftUI, reduced memory usage up to 8x, implemented CI/CD pipelines that cut release times by 40%, and refined gitflow to boost development efficiency 20%.

Led development of an iOS & tvOS golf simulator in SwiftUI and GraphQL, optimizing performance 6x to deliver stable 60 FPS and adapting the app for tvOS to expand platform reach.

Led development of an EV charging stations iOS app in collaboration with BP, architected using Clean Architecture and MVVM, and built CI/CD pipelines and custom UI with Core Graphics/Core Animation.

Developed secure sign-in framework with selfie video, face tracking and speech recognition using AVFoundation, Vision, and Speech; implemented OAuth (Google/Apple) and Passport MRZ + NFC biometric verification.

Built a SwiftUI/Combine audio player with AVFoundation and Core Data, maintained multiple major app versions, and integrated unit tests into Fastlane CI/CD to improve reliability and deployment.

Promoted to Lead in 1.5 months to deliver a pharmacy e-market app, improving design and UX, eliminating memory leaks, integrating Yandex navigation, and optimizing Realm database structures.

Developed a kindergarten management app with QR-based check-ins, photo uploads, REST/RSS integrations, and APNS push notifications to improve staff-parent communication and operations.

Led development across credit/leasing, trade, gas station, and logistics systems, implemented integrations uploading 100K+ credit contracts monthly, and integrated Active Directory for secure authentication.

Specialist degree in Computer Engineering from Odessa State Polytechnic University.