Senior iOS Engineer: Swift, VIPER & App Store Deployment

Quantum Technologies. LLC; Jersey City (NJ); On-site; USD 120,000 - 160,000; Full time

Job summary

Quantum Technologies LLC in Jersey City, New Jersey, is seeking an experienced iOS engineer to design, develop, and maintain native iOS applications for iPhone and iPad.

You will work with Swift and Objective-C, SwiftUI, UIKit, and modern architectures (MVC, MVVM, VIPER), integrate RESTful APIs, manage provisioning, and publish apps on the Apple App Store while collaborating with UI/UX, backend, QA, and product teams.

Qualifications

• Experience designing, developing, and maintaining iOS apps.
• Proficiency in Swift and Objective-C programming languages.
• Strong knowledge of SwiftUI, UIKit, and Interface Builder.
• Familiar with MVC, MVVM, and VIPER architectures.
• Experience integrating RESTful APIs and backend services.
• Knowledge of authentication (OAuth 2.0) and JWT.

Responsibilities

• Design, develop, and maintain high-quality iOS applications for iPhone and iPad devices.
• Develop native iOS applications using Swift and Objective-C.
• Build modern user interfaces with SwiftUI, UIKit, and Interface Builder.
• Implement architecture using MVC, MVVM, and VIPER patterns.
• Integrate apps with RESTful APIs and backend services.
• Ensure secure authentication with OAuth 2.0 and JWT.
• Develop features using Core Data, SQLite, and local storage.
• Integrate third-party SDKs and MapKit/Core Location.
• Improve performance, memory management, and battery efficiency.
• Handle multithreading via GCD and Swift Concurrency.
• Develop reusable components and scalable architecture.
• Perform unit/UI testing with XCTest/XCUITest.
• Debug crashes, improve stability, and manage builds/provisioning.
• Publish and maintain apps on the Apple App Store.
• Collaborate with UI/UX designers, backend, QA, and product teams.
• Participate in Agile ceremonies and code reviews.

Skills

Swift

Objective-C

SwiftUI

UIKit

MVVM

VIPER

REST APIs

OAuth 2.0

JWT

Core Data

Tools

Xcode

Interface Builder

MapKit

Core Location

AVFoundation

SQLite

Job description

Quantum Technologies LLC in Jersey City, New Jersey, is seeking an experienced iOS engineer to design, develop, and maintain native iOS applications for iPhone and iPad.

You will work with Swift and Objective-C, SwiftUI, UIKit, and modern architectures (MVC, MVVM, VIPER), integrate RESTful APIs, manage provisioning, and publish apps on the Apple App Store while collaborating with UI/UX, backend, QA, and product teams.