Eduard is available for hire

Eduard Stern

Verified Expert in Engineering

iOS Developer

Bucharest, Romania

Toptal member since September 5, 2022

Expertise

MacOS iOS Xcode Swift Objective-C Jira RxSwift Git Firebase

Bio

Eduard is an experienced iOS developer with a demonstrated history of working in the telecommunications industry. He's skilled in iOS, Swift, Objective-C, and mobile applications. Eduard is a strong engineering professional with a bachelor's degree in computer science from the University of Bucharest.

Portfolio

T-Mobile (now Odido)

Combine, Swift, RxSwift, iOS

YAP

iOS, Swift, SwiftUI, MVVM-C, XCTest, Unit Testing, Combine, Clean Architecture

Joyn

Swift, Xcode, RxSwift, RxCocoa, tvOS, UIKit, Mobile Apps...

Experience

Computer Science - 10 years
iOS - 8 years
Xcode - 8 years
Swift - 5 years
Objective-C - 5 years
RxSwift - 4 years
Mobile Architecture - 3 years
tvOS - 2 years

Availability

Part-time

Preferred Environment

MacOS, Xcode, Swift

The most amazing...

...project I've ever worked on is the most downloaded application on the iPad.

Work Experience

Senior iOS Developer

2023 - 2024

T-Mobile (now Odido)

Led the initiative to redesign the app, transitioning it from T-Mobile to Odido.
Worked on a variety of bug fixes and feature improvements for the Odido iOS application.
Redesigned and implemented the Invoices screen, transitioning it from a web view to a fully native experience.

Technologies: Combine, Swift, RxSwift, iOS

iOS Team Lead

2023 - 2023

YAP

Developed a fintech application for Saudi Arabia from scratch while working on legacy code for the United Arab Emirates.
Managed a team of three iOS developers, providing tasks, giving feedback, presenting demos, and participating in design meetings.
Improved code quality and overall user experience with the iOS application.

Technologies: iOS, Swift, SwiftUI, MVVM-C, XCTest, Unit Testing, Combine, Clean Architecture

Senior iOS Developer

2021 - 2022

Joyn

Worked for Joyn on one of Europe's biggest video streaming applications with more than one million active users.
Implemented various flows for Apple TV on the Joyn application to improve users' experience when using the application, such as implementing the search functionality within the app and integrating deep link functionality into the live TV flow.
Implemented a media library on the Apple TV application from scratch.

Technologies: Swift, Xcode, RxSwift, RxCocoa, tvOS, UIKit, Mobile Apps, Model View ViewModel (MVVM), LiveStream, iOS Native Libraries, iOS SDK

iOS Developer

2019 - 2021

Cegeka

Acted as an iOS developer for an application developed for a hospital used by patients who can securely consult their medical records.
Developed new features using RxSwift and MVVM and VIPER architecture.
Wrote unit tests using Quick and Nimble frameworks.

Technologies: Swift, RxSwift, RxCocoa, ReactiveSwift, UIKit, Firebase, Mobile Apps, Model View ViewModel (MVVM), LiveStream, iOS Native Libraries, iOS SDK

iOS Developer

2017 - 2018

Paradox

Worked as part of iOS developers team to develop iOS Insite Gold app with over 50,000 downloads. Developed the app in Objective-C. The users need this app to monitor and control the Paradox security system from home, directly from iPhone.
Developed new features and complex storyboards in the Insite Gold iOS application.
Used source control using Git and issue tracking using Jira.
Used AVFoundation framework to edit and create new media files.

Technologies: Objective-C, iOS, Xcode, Git, Jira, UIKit, Mobile Apps, iOS Native Libraries, iOS SDK

Mobile Developer

2014 - 2017

i-Tom Solutions

Developed and maintained Android and iOS applications for various customers and organizations.
Worked with Apple approval and distribution process and ad-hoc and enterprise distribution.
Used crash detection libraries like Instabug or Sentry.

Technologies: iOS, Objective-C, Swift, UIKit, Mobile Apps, iOS Native Libraries, iOS SDK

Experience

OLX Application

A Swift-based app for an eCommerce platform. I worked closely with the monetization team on developing API design and Figma prototypes for a platform service feature and also integrated a platform service into an iOS application.

I worked closely with the buyer loyalty team on completely changing the buyer flow and also implemented the new buyer flow for the OLX Poland application.

i-Asigurare Application

http://www.i-asigurare.ro

An iOS app based on Swift and Objective-C. i-Asigurare is a platform that helps people buy insurance for cars, travel, or their houses. It also helps in comparing fees and checking insurance conditions.

Joyn Application

http://www.joyn.de

Joyn is a Swift-based application for a video streaming platform, available on iPhone, iPad, and tvOS. I was in charge of implementing various flows for Apple TV on the Joyn application to improve the user experience when using the application, such as implementing the search functionality within the app and integrating deep link functionality into the live TV flow. I also implemented the media library on the Apple TV application from scratch.

Education

2011 - 2014

Bachelor's Degree in Computer Science

University of Bucharest - Bucharest, Romania

Skills

Libraries/APIs

RxSwift, RxCocoa, iOS Native Libraries

Tools

Xcode, Jira, Git

Languages

Swift, Objective-C

Frameworks

UIKit, SwiftUI, iOS SDK, ReactiveSwift, XCTest, Combine

Paradigms

Reactive Programming, Model View ViewModel (MVVM), Mobile Development, Clean Architecture, Unit Testing

Platforms

MacOS, iOS, tvOS, Firebase

Other

Software Engineering, Computer Science, Mobile Apps, LiveStream, Frameworks, Mobile Architecture, Software Architecture, MVVM-C

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