Senior Android Engineer II - Platform

Ajaib; Jakarta Pusat; A distancia; IDR 300.000.000 - 600.000.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Performance Bonus

Private Insurance

Paid Time Off

Learning & Development

Hybrid Work Arrangement

Career Growth

Employee Perks

Collaborative & High-Ownership Culture

Descripción de la vacante

Ajaib is seeking a Senior Android Engineer II to join the Platform team. You will design, build, and own Android foundations used across multiple product teams, including architecture, shared libraries, and security features. You will mentor engineers and contribute to release tooling in a remote-first environment.

You will work with Kotlin, Jetpack Compose, and modern architecture patterns, focusing on high-quality, scalable mobile engineering for a fintech platform with a large user base.

Formación

• Bachelor's degree in Computer Science or equivalent practical experience.
• 5+ years of professional mobile engineering experience building shared libraries, SDKs or tooling used by several teams in consumer Android apps with a large user base.

Responsabilidades

• Design, build and maintain shared Android foundations: app architecture, modules, design system and shared libraries.
• Own features end to end: design, implementation, testing, release and support for teams that use them.
• Keep shared libraries stable: APIs, versioning, migration guides and deprecation.
• Build Compose components that product teams can adopt without custom work.
• Improve sign-in, token storage, biometric and device security features.
• Improve build speed, modularization, CI/CD pipelines and release automation.
• Set and measure quality standards (crash-free rate, ANR, startup time, app size).
• Write maintainable, well-tested code and perform code reviews.
• Investigate production issues from crash reports and feedback, ship fixes.
• Mentor mid-level engineers and share Android best practices.

Conocimientos

Kotlin

Android SDK

Jetpack Compose

Coroutines/Flow

MVVM / Clean Architecture

Multi-module apps

CI/CD

Unit testing

UI testing

Security on mobile

Educación

Bachelor's degree in Computer Science or equivalent

Herramientas

Gradle

Android Studio

Library publishing

Descripción del empleo

Founded to transform retail finance, Ajaib Group is an Indonesian fintech unicorn breaking barriers to financial access. Having recently secured a $270M Series C—the single largest funding round in Southeast Asia over the past four years, we are backed by premier global investors including Y Combinator, Ribbit Capital, SoftBank, and SBI Holdings.

To build world‑class products, we assemble world‑class talent. Supported by our fully remote work arrangement, our team spans Eastern Europe, the Middle East, India, and Southeast Asia, allowing you to work with brilliant engineers and builders from around the globe from wherever you are. We operate with an impact‑driven purpose where everyone is the owner of our customers' satisfaction. Driven by a growth mindset and a fierce will to win, we refuse to settle and constantly push engineering boundaries.

Role Overview

As a Senior Android Engineer II in the Platform team, you build the Android foundations that every Ajaib product team builds on: the app architecture, design system, shared libraries and SDKs, secure sign‑in and device security, and the build and release tooling. You own these foundations from design to release, treat other engineers as your customers, and help the engineers around you do better work.

• Design, build and maintain shared Android foundations: app architecture, modules, design system and shared libraries.
• Own features end to end: technical design, implementation, testing, release and support for the teams that use them.
• Keep shared libraries stable: clear APIs, semantic versioning, changelogs, migration guides and safe deprecation.
• Build accessible, themeable Jetpack Compose components that product teams can adopt without custom work.
• Build and improve secure sign‑in, token storage, biometric and device security features, working with backend and Security teams.
• Improve build speed, modularization, CI/CD pipelines and release automation for all Android teams.
• Set and measure quality standards, such as crash‑free rate, ANR rate, startup time and app size.
• Write maintainable, well‑tested code and give thoughtful code reviews.
• Investigate production issues from crash reports and feedback from product teams, and ship lasting fixes.
• Mentor mid‑level engineers and share good Android practices across teams.

• Education: Bachelor's degree in Computer Science or equivalent practical experience.
• Experience: 5+ years of professional mobile engineering, including building shared libraries, SDKs or tooling used by several teams in consumer Android apps with a large user base.
• Languages & Frameworks: Strong in Kotlin and the Android SDK; experience with Jetpack Compose, Coroutines/Flow and modern architecture patterns (MVVM, clean architecture).
• Architecture & Tooling: Experience with multi‑module apps, Gradle, build performance and library publishing.
• Quality: Solid experience with unit and UI testing, CI/CD, crash monitoring and performance profiling.
• Security: Working knowledge of secure storage, authentication on mobile and device security.
• Mindset: Ownership mindset, clear communication and a service attitude toward internal users. Experience in fintech or another regulated, high‑traffic consumer product is a plus.

• Performance Bonus - Get rewarded for the impact you make
• Private Insurance - Comprehensive health coverage for you
• Paid Time Off - Take the time you need to recharge and come back stronger
• Learning & Development - Company-sponsored training, courses, and professional certifications
• Hybrid Work Arrangement - Enjoy the flexibility of working both remotely and from the office
• Career Growth - Work closely with experienced leaders and take on meaningful ownership as we scale
• Employee Perks - Enjoy exclusive discounts, partnerships, and lifestyle perks
• Collaborative & High-Ownership Culture - Work with smart, driven people in cross‑functional teams, take ownership, and make a meaningful impact for our users.