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.
Requirements
- 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.
Benefits
- 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.
Skills Required
- Bachelor's degree in Computer Science or equivalent practical experience
- 5+ years of professional mobile engineering experience
- Experience building shared libraries, SDKs, or tooling used by multiple teams in consumer Android applications
- Strong Kotlin and Android SDK skills
- Experience with Jetpack Compose, Coroutines, Flow, and modern architecture patterns such as MVVM and clean architecture
- Experience with multi-module applications, Gradle, build performance, and library publishing
- Experience with unit testing, UI testing, CI/CD, crash monitoring, and performance profiling
- Working knowledge of secure storage, mobile authentication, and device security
- Experience in fintech or another regulated, high-traffic consumer product
What We Do
Founded in 2019, Ajaib is a rapidly growing investment platform in Indonesia. It offers financial technology services such as stock trading, mutual funds, and coins. The simplicity of investing through Ajaib inspired our name, which means "magic," as we aim to disrupt the financial industry magically. Our goal is to make stock trading accessible to millennials with our mobile-first approach, low fees, and user-friendly interface. Ajaib has become Indonesia's first fully online stock brokerage, with no offline brokers or branches. Trusted by over 3 million customers, we are the fastest-growing investment startup in Southeast Asia. Backed by top investors like DST Global, Horizons Ventures, and Alpha JWC Ventures, we proudly became Indonesia's first investment fintech unicorn.
