Andrey Gershengoren

iOS Developer

Avatar placeholder
Nuremberg, Germany

Experience

Oct 2023 - Present
2 years 4 months

iOS Developer

IBM Deutschland GmbH

  • Further development of an existing app
  • Implementation of new features
  • Bug fixes
  • Technologies: Swift, Xcode, Git, Jira, REST, MVVM, XCTests, UITests, Fastlane, Jenkins, SwiftUI
Apr 2022 - Aug 2023
1 year 5 months

iOS Developer

eBay Kleinanzeigen GmbH

  • Rebranding of the classifieds iOS app
  • Planning, implementation, and integration of the design system
  • Phased updates to the app design
  • Technologies: Swift, Xcode, Git, Jira, REST, MVVM, XCTests, UITests, Fastlane, Jenkins, SwiftUI, Design System, SPM
Jul 2020 - Mar 2022
1 year 9 months

iOS Developer

EDEKA Digital GmbH

  • Further development of the existing app
  • Implementation of new features
  • Technologies: Swift, Xcode, Git, Jira, RxSwift, Realm, REST, MVVM, XCTests, UITests, Gherkin, Fastlane, Swiftlint, SwiftUI
Jan 2020 - Jun 2020
6 months

iOS Developer

Siemens AG

  • Further development of the existing app
  • SDK development for IoT devices
  • Technologies: Swift 5, Xcode, Git, Gitlab, RxSwift, Realm, REST, MVVM, XCTests, Fastlane, Swiftlint, AWS
Jul 2019 - Dec 2019
6 months

iOS Developer

EDEKA Digital GmbH

  • Further development of the existing app
  • Implementation of new features
  • Technologies: Swift 5, Xcode, Git, Gitlab, RxSwift, Realm, REST, MVVM, XCTests, Fastlane, Swiftlint
Mar 2018 - Jun 2019
1 year 4 months

iOS Developer

Siemens AG

  • Migration of the app to MVVM architecture
  • Implementation of new features
  • Integration of continuous integration
  • Unit and UI tests
  • Technologies: Swift 4 & 5, Xcode, Git, Gitlab, RxSwift, Realm, REST, GraphQL, MVVM, XCTests, Fastlane, Swiftlint, AWS
Nov 2017 - Feb 2018
4 months

iOS Developer

Live Reply GmbH

  • Implementation of new features
  • Refactoring of existing features
  • Migration to Swift 4
  • Technologies: Swift 4, Xcode, Git, RxSwift, Realm, REST, MVVM, Zeplin, Sketch
Apr 2017 - Oct 2017
7 months

iOS Developer

KURZ Digital Solutions GmbH & Co KG

  • Design and implementation of new apps
  • Extension of functionality of existing apps
  • Technologies: Swift 3, Objective-C, Xcode, Tesseract, OpenCV, ZXing, Core Image, CIFilters, custom CIKernels, Core Bluetooth, RFID reader and writer, Core Data, REST, Unit Tests, UI Tests, Git, Cocoa Pods, Gitlab, fastlane, JIRA, Confluence
Jan 2017 - Mar 2017
3 months

iOS Developer

LUNAR GmbH

  • Relaunch of an existing app
  • Planning and development of infrastructure and codebase for multiple applications
  • Technologies: Swift 3, Xcode, Buddybuild, JIRA, Confluence, RxSwift, Google Tag Manager, Git, Scrum, Unit Tests, UI Tests, Cocoa Pods, Realm, SnapKit
Sep 2016 - Dec 2017
1 year 4 months

iOS Developer

LUNAR GmbH

  • Development and planning of the customer loyalty app
  • Integration of Google Analytics and the Groupon API
  • Technologies: Swift 3, Xcode, Buddybuild, JIRA, Confluence, RxSwift, Google Tag Manager, Git, Scrum, Unit Tests, UI Tests, Cocoa Pods, Realm, SnapKit
May 2016 - Jun 2016
2 months

Multi-Scoreboard App Developer

Freelance

  • Design, concept and development of the Multi-Scoreboard App
  • Live sync with multiple scoreboard devices via JSON API
  • Data exchange via local server and API of the scoreboard software
  • Up to 6 scoreboards on one device
  • Technologies: Swift, Xcode, NodeJs, Linux, Socket, API, JSON, MongoDB
Apr 2016 - May 2016
2 months

Scoreboard App Developer

Freelance

  • Design, concept and development of a scoreboard client app for sporting events
  • Live sync with scoreboard hardware via JSON API
  • Video recording feature with live scoreboard overlay
  • Data exchange via local server and API
  • Technologies: Swift, Xcode, NodeJs, Linux, Socket, API, JSON, MongoDB
Feb 2016 - Apr 2016
3 months

Combat Sport Replay System Developer

Freelance

  • Design, concept and development of a client-server system
  • Recording, transmission and playback of high-FPS videos over a network
  • Storage and processing of video streams on the server
  • Synchronous playback of multiple videos on iPad
  • Technologies: Swift, Xcode, NodeJs, Linux, Socket, ffmpeg, HLS, MongoDB, Git
Jan 2016 - Feb 2016
2 months

iOS Game Developer

Freelance

  • Design, concept and development of the mobile game "Die Kugel"
  • Technologies: Swift, Xcode, Sketch, Git
Aug 2015 - Dec 2015
5 months

iOS Game Developer

Freelance

  • Design, concept and development of the mobile game "HEX'EM"
  • Technologies: Swift, Xcode, Sketch, Git
Mar 2014 - Apr 2014
2 months

iOS Developer

Dillons Bay LTD

  • Design, concept and development of the VoIP app "XCall"
  • Technologies: Objective-C, Swift, Xcode, Git
Jun 2013 - Jul 2013
2 months

iOS Developer

Dillons Bay LTD

  • Design, concept and development of the VoIP app "CallBack.me"
  • Technologies: Objective-C, Xcode, Git
Jan 2013 - Jun 2013
6 months

iOS Developer

L+H AutomobilConsult GmbH

  • Design, concept and development of the survey app "GraphicTool"
  • Backend and database architecture
  • Technologies: Objective-C, Xcode, PHP, MySQL
Aug 2012 - Jun 2016
3 years 11 months

iOS Developer

Freelance

  • Development of several own projects in mobile games, geo-location, Core Bluetooth, video and image processing, integration of external APIs
  • Tasks from concept to implementation
  • Technologies: Objective-C, Swift, Xcode, Git, AVFoundation, CoreBluetooth, CoreMotion, SpriteKit, CocoaPods, HTTP Live Streaming, UI/UX, XCTest, GameKit, GameplayKit, iAd

Summary

Planning, software architecture and design, development of mobile applications for iOS, UI/UX, agile project management.

Skills

  • Swift
  • Objective-c
  • Jenkins
  • Fastlane
  • Gitlab
  • Git
  • Svn
  • Cocoa Pods
  • Swift Package Manager
  • Xcode
  • Sublimetext
  • Sourcetree
  • Slack
  • Trello
  • Mantis
  • Lucidchart
  • Confluence
  • Jira

Languages

English
Advanced
Russian
Advanced
German
Elementary

Education

Sep 2010 - Apr 2013

Georg-Simon-Ohm Hochschule

M.Sc. in Computer Science · Computer Science · Nuremberg, Germany

Sep 2004 - May 2007

Staatliche Universität für Informationstechnologie

B.Sc. in Computer Science · Computer Science · Tashkent, Uzbekistan

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