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George – SwiftUI, Swift, Objective C, experts in Lemon.io

George

From Ukraine (GMT+2)

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Mobile DeveloperMiddle-to-senior
Hire developer
10 years of commercial experience
Automotive
Communications
E-commerce
Photography
Printing
Retail
Messaging software
Mobile apps
Lemon.io stats
2
projects done
5506
hours worked
Open
to new offers

George – SwiftUI, Swift, Objective C

George has 6+ years of commercial experience, including developing SDK for video calls and synchronization HLS streams, creating an Application for GSM/WebRTC calls and real-time chat, and a car-sharing app. He is an open-minded person who’s ready to work both as an individual and in a team. George has team-leading experience on one of his previous projects, in addition to his strong technical background.

Main technologies
SwiftUI
1 years
Swift
4 years
Additional skills
Objective C
WebSocket
VIPER
iOS SDK
WebRTC
Firebase
Moya
WebSocket
WebRTC
Firebase
Combine
OpenGL
ARKit
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior iOS Developer
May 2022 - Aug 20242 years 3 months
Project Overview

A virtual business phone system uses the internet to facilitate communication, sidestepping conventional telephone technology. Utilising Voice over Internet Protocol (VoIP), it transforms voice into digital signals that traverse the web, allowing calls to be made and received on diverse devices such as desktops and smartphones.

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Responsibilities:
  • Designed, built, and maintained efficient, reusable, and reliable code
  • Communicated with multi-functional teams to streamline the workflow
  • Suggested technical and functional improvements to add value to the product
  • Identified UI problems and bugs and devise efficient solutions
  • Distributed app
Project Tech stack:
Swift
Core Data
SwiftUI
Twilio API
UIKit
.NET
Senior iOS developer
Oct 2021 - Apr 20225 months
Project Overview

The product makes mobile commerce easy by helping brands create the best mobile-native shopping experiences for their customers and then make these experiences accessible everywhere by utilizing Deep Links, QR codes, NFC tags, and other similar technologies.

When you want to place an order, all you need to do is tap the link or scan the visual code on the packaging (e.g. a QR code or an App Clip Code). Then you can check out in one tap with Apple Pay. The app takes care of the rest!

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Responsibilities:
  • Created architecture for project
  • Developed project from scratch
  • Created AppClip
Project Tech stack:
Swift
SwiftUI
Combine
Firebase
Modular architecture
AppClip
Swift iOS Developer
Apr 2021 - Oct 20216 months
Project Overview

SDK for scanning documents Functions

  • detecting documents on photo
  • realtime detecting documents
  • cropping documents from photo
  • black and white filter
  • grayscale filter
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Responsibilities:
  • Created architecture for new SDK
  • Added new functionality to old SDK
  • Removed OpenCV from old SDK and migrate to native functions
Project Tech stack:
Swift
CoreML
AVKit
CGImage
CIImage
Lead Developer
Sep 2019 - May 20211 year 8 months
Project Overview

SDK for video calls and SDK for synchronization HLS streams

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Responsibilities:
  • Developed and distributed iOS SDK for real-time video calls based on WebRTC.
  • Developed and distributed SDK for synchronization of HLS streams.
Project Tech stack:
Objective C
iOS
WebSocket
WebRTC
iOS Developer
Jan 2019 - Sep 20198 months
Project Overview

Application for GSM/WebRTC calls and real-time chat

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Responsibilities:
  • Developed real-time chat UI and client logic
  • Developed and distributed the application.
  • Developed real-time chats with WebSockets.
  • Integrated Firebase analytics and push notifications.
Project Tech stack:
Swift
iOS
VIPER architecture
Firebase SDKWebsockets
UIKit
iOS Developer
Sep 2018 - Jan 20194 months
Project Overview

Application that allows you to sell and buy cars

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Responsibilities:
  • Developed the application.
  • Recreated the screen for search new auto.
  • Communicated with the backend team about API optimization.
  • Optimized the database in App.
Project Tech stack:
Swift
iOS
VIPER architecture
Moya
Lead Developer of iOS team
Oct 2017 - Jul 20188 months
Project Overview

Application for carsharing for the local market

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Responsibilities:
  • Developed and distributed application.
  • Developed UI based on UIKit.
  • Developed real-time chats based on Firebase real-time database.
  • Integrated payment services.
Project Tech stack:
Swift
iOS
VIPER architecture
WebSocket
Firebase SDK

Education

2019
Computer since
Bachelor's

Languages

English
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