Bluetooth LE
LED Controller
Control smart LED strips over BLE.
Available for freelance and contract
Senior iOS Engineer, Warsaw, Poland
Zakhar Sazanavets
I build iOS apps that make it to release and hold up in production.
Nine years of Swift and Objective-C across fintech, banking, video editing, social and media. I shipped a video editor to the App Store, designed the app architecture for one of the largest banks in Belarus, serving 500,000+ active users, and built 150+ apps from scratch.
150+
apps built from scratch
500K+
users on the bank app I architected
9
years of iOS
6
product teams
Experience
2016 - 202602/2024 - Present
Nicosia, Remote
Nicosia, Remote
Clideo Ltd
Senior iOS Developer, Video Editing
Social-first video editor for Reels and TikTok: timeline, trims, transforms, overlays and subtitles built on Swift and AVFoundation. Gesture-driven UI, picture-in-picture and split screen. A media pipeline that renders and exports up to 4K, with realtime subtitles over WebSocket.
SwiftMVVMSPMUIKitRxSwiftAVFoundationRealm
03/2023 - 02/2024
Minsk
Minsk
Alfa-Bank (Belarus)
Senior iOS Developer, iOS App Architect
New architecture for a retail mobile bank: cards, payments, credit, QR and savings. Owned the iOS app architecture end to end for one of the largest banks in the country.
SwiftCleanMVVMSPMURLSessionCombine
05/2019 - 12/2022
Minsk
Minsk
System Technologies
Senior iOS and Flutter Developer
Alfa Business Mobile 2.0, a corporate bank on iOS. Plus a Flutter client app for a Kyrgyz bank, Commercial Bank KYRGYZSTAN, covering retail and legal-entity flows.
SwiftFlutterMoyaRealmRxSwiftMVVM
01/2023 - 03/2023
Minsk
Minsk
Sababa Labs
Senior iOS Developer
Gem4Life messenger: realtime chat with social features and media sharing.
SwiftVIPERAlamofireCoreDataReactiveCocoa
09/2017 - 05/2019
Minsk
Minsk
CreateX
iOS Developer, Team Lead, Tech Lead
Led the team as iOS and Tech Lead. Built and shipped 100+ apps from scratch across utilities, media and privacy tools.
SwiftMVVMVIPERIn-App PurchasesAlamofireCoreData
2016 - 2017
Minsk
Minsk
Balinasoft
Junior iOS Developer
Search apps, e-signature on iPad, food delivery, taxi and an audio guide.
Objective-CSocketIOCoreDataMVC
Projects
45 cataloguedA slice of 45 shipped apps I can point to, grouped by where they were built.
Balinasoft
FoodBand (food delivery), MyCityVoice (geo audio guide), TaxiExpress (taxi and roadside), BP Monitor (blood-pressure tracker), Uglevodov.net (calorie tracker), PressFeed (PR platform), RC-School (school access), and 4 more.
CreateX
Calc+ (private vault), Call Recorder, Colorize (photo colorization), Leak Inspector (breach checker), Voice Changer, Spam Blocker, Second Number, Instagram analytics tools, and 20 more.
Banking and utilities
Renaissance Credit (mobile bank), Speedometer Pro (GPS and dashcam).
Flutter
Commercial Bank KYRGYZSTAN (retail and legal-entity apps).
The projects shown are the ones I can share publicly. Most of my work ships under client and NDA terms in private repositories, 150+ apps in total.
Selected work
9 public apps
Skills
Languages
SwiftObjective-CFlutter/DartC++CC#
Architecture
MVVMCleanVIPERVIPMVPMVCSPM
Apple
UIKitSwiftUIAVFoundationAVKitARKitCombineSwift ConcurrencyCoreDataPhotoKit
Reactive and networking
RxSwiftReactiveCocoaRESTGraphQLWebSocketsAlamofireMoyaURLSessionSocketIO
Data, DI and media
RealmCoreDataSwinjectKingfisher
Analytics and tooling
FirebaseGoogle AnalyticsYandex MetricaAppsFlyerXcode InstrumentsGitFigmaJiraCharlesProxyman
Education
2019
Information Systems and Technologies (Logistics)
BSUIR
2017
Foreign Languages (English)
Belarusian State University
Languages
RussianNative
BelarusianNative
EnglishIntermediate, B1
PolishPre-Intermediate, A2