Senior Android Developer

Aster; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A technology company in Singapore is looking for a mid-senior level Android Developer. You will design and implement features for global Android applications, deliver high-performance code, and improve application performance. The ideal candidate has over 5 years of experience, is proficient in Kotlin and Java, and possesses deep knowledge of Android architecture and UI rendering. This full-time role offers a collaborative environment with cross-functional teams.

Qualifications

• Over 5 years of Android developer experience.
• Deep knowledge of Android system architecture and component lifecycle.
• Experience with WebSocket and real-time data.

Responsibilities

• Design and implement new user-facing features on Android applications.
• Troubleshoot issues and fix critical bugs.
• Collaborate to define and design new features at scale.

Skills

Android development

Fluent in Kotlin

Fluent in Java

OOP principles

Performance optimization

Problem-solving skills

Teamwork skills

Education

Degree in Computer Science or Engineering

Tools

Profiler

Systrace

Perfetto

LeakCanary

Job description

Responsibilities

• Design and implement new user-facing features on our global Android applications.
• Deliver high-performance, stable, and efficient code with great user experience and elegant design.
• Collaborate with cross‑functional teams to define, design, and ship new features at scale.
• Troubleshoot issues, fix critical bugs, and continuously improve application performance.
• Participate in technical, architectural, and product discussions, contributing to both short‑term execution and long‑term vision.

Requirements

• Over 5 years’ Android developer experience; degree in CS/Engineering or equivalent.
• Fluent with Kotlin & Java, solid OOP principles.
• Deep knowledge of Android system architecture, component lifecycle, UI rendering.
• Skilled with Jetpack (ViewModel, Room, etc.), Retrofit, OkHttp.
• Hands‑on with MVVM/MVI, modular app structure, large‑scale projects.
• Proven performance optimization: memory, layout, battery, cold start.
• Proficient in tools like Profiler, Systrace, Perfetto, LeakCanary.
• Experience with WebSocket & real‑time data, familiar with high‑concurrency/low‑latency scenarios.
• Bonus: Flutter/Compose, large‑app architecture/refactoring, blockchain knowledge, crypto exchange background.
• Strong problem‑solving, communication, and teamwork skills.

Seniority level

• Mid‑Senior level

Employment type

• Full‑time