Denis Esie
iOS Developer Portfolio
Highly skilled developer with 6+ years of experience in software engineering and background in gamedev.
AR Navigation
ARNavigation allows creating apps that use augmented reality to navigate within a given target area.
Role: Lead iOS Developer
Languages:
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Swift
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C, Objective-C
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C++, Objective-C++. Most of the cross-platform codebase is in C++ with Obj-C++ wrappers, iOS-native is mostly in Swift
Frameworks:
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Dispatch – multithreaded algorithms for working with graphs and user positioning in runtime
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Foundation, UIKit – native programatic UI
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GameplayKit – native pathfinding algorithms, r-trees and quad-trees for efficient object search
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ARKit, SceneKit – used with to setup the whole AR environment and 3D mini-map, object trackin, person-segmentation, AR-reference images and QR code detection
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Networking, Firebase&Crashlytics – enabling map updates in runtime using a backend service
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Accelerate, Metal – low-level optimizations of large data processing (detecting blur, person and object frames, calculating rotations on large vectors, etc)
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simd – low-level vector processing with cross-platform support
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CoreLocation – working with user location to enable location-based experiences
Dexoma
Dexoma provides seamless access to major exchanges and makes it easy to manage your financial portfolio and watchlist. It supports stocks, indices, forex, and crypto. All in real-time! It’s easy to use. Configure your watchlist with simple drag and drops, and within a minute you will see your entire watchlist. Select an asset to see a detailed chart with technical indicators and analytics data.
Role: iOS Developer. Developed the app from scratch.
Languages:
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Swift
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Objective-C
Frameworks:
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UIKit, SwiftUI, CoreAnimation, CoreGraphics – native programatic UI, custom animations & transitions
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RxSwift – used widely across the app, from networking services to MVVM-bindings
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Networking, REST – app data updates using a backend service
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WebSockets – real-time messaging and rates updates using a backend service
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CoreData – storing user's watchlist and saved assets
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Firebase – analytics, storage for user data, messaging and notifications
CryptoView
CryptoView provides seamless access to major crypto exchanges and makes it easy to manage your crypto portfolio and track your watchlist in real-time. It supports the following exchanges: Bitstamp, Coinbase, Binance, Poloniex, Kraken.
Role: iOS Developer. Developed the app from scratch.
Languages:
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Swift
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Objective-C
Frameworks:
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UIKit, SwiftUI, CoreAnimation, CoreGraphics – native programatic UI, custom animations & transitions
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RxSwift – used widely across the app, from networking services to MVVM-bindings
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Networking, REST – app data updates using a backend service
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WebSockets – real-time wallets, transactions and rates updates using a backend service
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Firebase – analytics, storage for user data, messaging and notifications
Equilibrium
Spacecell AR
Climb with Wheelbarrow
XRoll
Spacecell
Equilibrium helps you reach your goal by dividing it into a list of small steps recursively. Then each step can be divided into a list of easier steps that can be divided again and so on ad infinitum, creating a graph of the easiest tasks to your final goal. It will give you an organized visualization of the entire task-graph, allowing you to see the whole picture, instead of a traditional list.
Role: iOS Developer. Developed the app from scratch.
Languages:
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Swift
Frameworks:
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UIKit – native storyboard-based UI, animations & transitions
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CoreAnimation, CoreGraphics – organized visualization of the user's task-graph
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CoreData – storing user's task-graph
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Notifications – local notifications for user's tasks
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MacCatalyst, AppKit – macOS port app
RatesView
Currency Converter
