Senior Cross-Platform Mobile & Web Engineer

Quantum infotech Solutions; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Quantum infotech Solutions is seeking a seasoned Mobile & Web Application Developer to design, develop, and maintain high-quality apps across iOS, Android, and Web platforms. You will work on scalable, performance-driven products with cross-functional teams to deliver exceptional user experiences.

The role covers native iOS and Android development, web development with ReactJS, and collaboration on backend integrations and CI/CD pipelines.

Qualifications

• 8–12 years of experience in mobile and web application development.
• Strong expertise in Swift, SwiftUI, Objective-C, and Java.
• Hands-on experience with ReactJS, TypeScript, JavaScript, HTML, and CSS.
• Experience integrating RESTful APIs.
• Knowledge of MySQL, SQLite, Firebase, and Realm.
• Experience with Xcode, Fastlane, Git, GitHub, Bitbucket, and SVN.
• Familiarity with XCTest, XCUITest, and Jest.
• Experience implementing CI/CD using Jenkins and GitHub Actions.
• Proven experience deploying applications to the Apple App Store and Google Play Store.
• Strong debugging, profiling, and performance optimization skills.

Responsibilities

• Design, develop, and maintain native iOS applications using Swift, SwiftUI, and Objective-C.
• Build responsive UI and integrate RESTful APIs.
• Perform debugging, testing, and performance optimization using Xcode, XCTest, and XCUITest.
• Manage App Store and Play Store releases using Fastlane.
• Develop and maintain Android applications using Java; publish on Google Play Store.
• Create web apps with ReactJS, TypeScript, JavaScript, HTML, and CSS; ensure cross-browser compatibility.
• Integrate REST APIs and collaborate with backend teams; manage source with Git-based tools; build CI/CD pipelines with Jenkins and GitHub Actions.
• Follow Agile methodologies, code reviews, and best practices; ensure accessibility, localization, security, and high performance.

Skills

Swift

SwiftUI

Java

TypeScript

JavaScript

ReactJS

HTML/CSS

RESTful APIs

CI/CD

XCTest

XCUITest

Git

Agile

Tools

Xcode

Fastlane

Git

GitHub

Bitbucket

SVN

Jenkins

GitHub Actions

Job description

Quantum infotech Solutions is seeking a seasoned Mobile & Web Application Developer to design, develop, and maintain high-quality apps across iOS, Android, and Web platforms. You will work on scalable, performance-driven products with cross-functional teams to deliver exceptional user experiences.

The role covers native iOS and Android development, web development with ReactJS, and collaboration on backend integrations and CI/CD pipelines.