Android Developer

Mitramas Infosys Global; Jakarta Selatan; On-site; IDR 167,400,000 - 401,760,000; Full time

Job summary

Mitramas Infosys Global seeks an Android developer to build and maintain apps using Kotlin/Java, MVVM, and Clean Architecture. You will integrate REST APIs, implement secure login and biometrics, and ensure compatibility with new Android versions.

Responsibilities include debugging, performance tuning, unit testing, and preparing release notes and design docs. Prior experience in fintech or payments is a plus, and a strong focus on security is required.

Qualifications

• Experience developing Android apps with Kotlin/Java and architectural patterns (MVVM/Clean Architecture).
• Familiarity with REST APIs, JSON, and secure authentication methods.
• understanding OWASP mobile security and secure coding practices.

Responsibilities

• Develop and maintain the Android app using Java & Kotlin with MVVM/ Clean Architecture/ Repository Pattern.
• Integrate the app with REST APIs, JSON, and token-based authentication.
• Implement login, PIN, biometric authentication, session timeout, and secure storage.
• Apply secure coding practices, including protection of credentials, tokens, and local storage.
• Implement UI/UX slicing based on the defined design system.
• Perform debugging, performance tuning, memory leak analysis, and crash handling.
• Handle build, APK/AAB signing, keystore management, and Play Store releases when required.
• Adapt the app to the latest Android versions while maintaining backward compatibility.
• Write unit tests/functional tests for developed modules.
• Provide technical design documents, release notes, and related documentation

Skills

Android development

Kotlin

Java

MVVM

Clean Architecture

Repository Pattern

REST APIs

JSON

Biometric authentication

Secure coding

Unit testing

CI/CD

Android Studio

Tools

Android Studio

CI/CD pipelines

Git

Job description

Here in Mitramas Infosys Global, you will be exposed to work on software across a diverse platform of technologies as well as a variety of industries within our portfolios. We are looking for talents with high tenacity in solving problems, exceptional passion for technologies, and a great willingness to learn and adapt to ever-changing environments to join our team.

You are expected to be able to:

• Develop and maintain the Android app using Java & Kotlin with MVVM / Clean Architecture / Repository Pattern.
• Integrate the app with REST APIs, JSON, and token-based authentication.
• Implement login, PIN, biometric authentication, session timeout, and secure storage.
• Apply secure coding practices, including protection of credentials, tokens, and local storage.
• Implement UI/UX slicing based on the defined design system.
• Perform debugging, performance tuning, memory leak analysis, and crash handling.
• Handle build, APK/AAB signing, keystore management, and Google Play Store releases when required.
• Adapt the app to the latest Android versions while maintaining backward compatibility.
• Write unit tests/functional tests for developed modules.
• Provide technical design documents, release notes, and related documentation

• Experience developing Android applications with Kotlin, ideally for mobile banking, fintech, e-wallet, or payment apps.
• Understanding of MVVM, Clean Architecture, or Repository Pattern.
• Experience integrating REST APIs, JSON, and handling error cases.
• Familiar with biometric authentication, secure storage, and session management.
• Understanding of OWASP Mobile Security principles and secure coding.
• Familiar with build, signing, keystore management, and Play Store release processes.
• Experienced with Git, code review, and CI/CD pipelines.
• Able to work on a man-days basis with clear timesheet and progress reporting.