Senior iOS Engineer: Swift, UI, & Scalable App Architecture

Machine Learning Technologies, LLC; Jersey City (NJ); On-site; USD 90,000 - 120,000; Full time

Job summary

Machine Learning Technologies, LLC is seeking a skilled iOS developer to design, build, and maintain high-quality native apps for iPhone and iPad.

You will work in a fast-paced team, implement Swift/Objective-C solutions, and collaborate with UI/UX designers, backend engineers, and product managers. The role emphasizes modern UI frameworks, robust architectures, testing, and App Store deployments.

Qualifications

• Experience designing, developing, and maintaining native iOS applications.
• Proficiency with Swift, Objective-C, and modern UI frameworks.
• Familiarity with MVC, MVVM, and VIPER architectures.
• Experience integrating RESTful APIs and secure authentication.
• Strong testing experience with XCTest/XCUITest.
• Experience deploying to the Apple App Store.

Responsibilities

• Design, develop, and maintain high-quality iOS applications for iPhone and iPad devices.
• Develop native iOS applications using Swift and Objective-C programming languages.
• Build modern user interfaces using SwiftUI, UIKit, and Interface Builder.
• Implement application architecture using MVC, MVVM, and VIPER design patterns.
• Integrate mobile applications with RESTful APIs and backend services.
• Implement secure authentication and authorization using OAuth 2.0 and JWT.
• Develop application features using Core Data, SQLite, and local storage.
• Integrate third-party SDKs, libraries, and external services into iOS applications.
• Work with Apple frameworks such as Core Location, MapKit, AVFoundation, and Core Animation.
• Optimize application performance, memory management, and battery consumption.
• Implement multithreading and asynchronous programming using Grand Central Dispatch (GCD) and Swift Concurrency.
• Develop reusable components and maintain scalable mobile application architecture.
• Perform unit testing and UI testing using XCTest and XCUITest.
• Debug application crashes, resolve technical issues, and improve application stability.
• Manage application builds, provisioning profiles, certificates, and deployments through Xcode.
• Publish and maintain applications on the Apple App Store.
• Collaborate with UI/UX designers, backend developers, QA engineers, and product managers.
• Participate in Agile ceremonies, sprint planning, code reviews, and technical discussions.

Skills

Swift

Objective-C

SwiftUI

UIKit

MVVM

VIPER

REST APIs

OAuth 2.0

JWT

Core Data

SQLite

GCD

Swift Concurrency

XCTest

XCUITest

Tools

Xcode

Git

Job description

Machine Learning Technologies, LLC is seeking a skilled iOS developer to design, build, and maintain high-quality native apps for iPhone and iPad.

You will work in a fast-paced team, implement Swift/Objective-C solutions, and collaborate with UI/UX designers, backend engineers, and product managers. The role emphasizes modern UI frameworks, robust architectures, testing, and App Store deployments.