Mobile Engineer

OPUS IT SERVICES PTE LTD; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

A leading tech service company in Singapore is seeking a Mobile Engineer to design and develop high-quality, scalable mobile applications. The ideal candidate will have expertise in both native and cross-platform development, proficiency in mobile UI/UX principles, and experience working in an agile environment. You will collaborate with various teams to ensure performance, security, and maintainability of applications.

Qualifications

• Proficient in mobile development practices for both iOS and Android.
• Experience with CI/CD for mobile applications.
• Understanding of secure coding practices.

Responsibilities

• Design and develop intuitive and accessible mobile applications.
• Collaborate with teams to ensure quality and automation.
• Document architectural patterns and technical decisions.

Skills

Mobile UI/UX principles

Proficiency in iOS (Swift) and/or Android (Kotlin)

Experience with React Native or Flutter

Version control with Git

Understanding of CI/CD pipelines

Education

Degree in Computer Science or related field

Tools

Cocoapods

Gradle

Firebase

Job description

Overview

The Mobile engineer is responsible for designing, developing and maintaining high-quality, performant and scalable mobile applications. The role requires expertise in native and cross-platform mobile development, UI/UX best practices and modern software engineering principles. Engineers must work in an agile, DevOps-driven environment, ensuring high software quality, security and maintainability.

Responsibilities

• Collaborate with Business Analysts (BA) and Product Managers to refine user stories and translate them into technical requirements.
• Work with Quality Assurance (QA) engineers to ensure automated test coverage and proactively fix bugs and defects.
• Partner with DevOps teams to automate build, deployment and release processes for mobile applications.
• Design, develop and maintain intuitive, responsive and accessible mobile applications that provide user experience.
• Improve software quality through Extreme Programming (XP) practices, including pair programming, code reviews and unit testing.
• Implement secure coding practices, ensuring protection against mobile security threats such as insecure data storage and API vulnerabilities.
• Optimize mobile performance, battery efficiency and offline capabilities to enhance user experience.
• Document technical decisions, architectural patterns and best practices for mobile development.

Experience and skills Needed

Technical Skills:

• Degree or diploma in Computer Science, Computer or Electronics Engineering, information technology or related disciplines.
• Experience with Git and modern branching workflows (GitFlow, trunk-based development).
• Proficiency in native mobile development for iOS (Swift, Objective-C) and/or Android (Kotlin, Java).
• Experience with cross-platform development frameworks such as React native or Flutter.
• Strong understanding of mobile UI/UX principles and platform-specific guidelines (Material Design, Human Interface Guidelines).
• Experience with state management solutions for mobile applications.
• Hands-on experience with mobile build systems and dependency management tools (Cocoapods, swift Package Manager or Gradle).
• Experience with frontend web technologies (JavaScript, HTML5, CSS3) for hybrid mobile app development.
• Experience integrating RESTful APIs, GraphQL, and WebSockets for mobile applications.
• Familiarity with mobile databases technologies.
• Experience with CI/CD pipelines for mobile applications (Fastlane, Bitrise, GitHub Actions, Gitlab CI).
• Understanding of mobile security best practices, including secure data storage, encryption, authentication and authorization.
• Knowledge of cloud platforms (AWS, Firebase) Google Cloud, Azure) for backend integration.
• Software engineering Practices: Experience working in Agile teams (Scrum, Kanban) with stro0ng collaboration skills.
• Knowledge of Extreme Programming (XP) practices such as TDD, pair programming and continuous refactoring.
• Strong understanding of mobile test automation frameworks (Appium, espress, XCUITest, Detox).
• Adherence to software craftsmanship principles, ensuring clean, maintainable and efficient code.

Bonus Experience (Added Advantage)

• Experience working in an Agile and UX-driven development environment.
• Hands-on experience with progress web apps (PWAs) and mobile web optimizations.
• Experience integration mobile applications with authentication mechanisms (OAtuth, JWT, OpenID Connect, Biometrics).
• Knowledge of mobile app distribution, App Store/ Google Play deployment, and release management.
• Familiarity with edge computing and 5G optimizations for mobile applications.
• Experience with augmented reality (AR) or virtual reality (VR) mobile development (ARKit, ARCore, unity).