Senior Mobile Infrastructure Engineer – Platform & Scale

OKX; Singapore; On-site; SGD 140,000 - 210,000; Full time

Benefits offered by this job

Competitive compensation package

Education subsidy

Team events

Wellness and meal allowances

Healthcare schemes for employees and“

Job summary

OKX is seeking a Senior Staff Mobile Engineer to join the Mobile Infrastructure team. You’ll work at the platform layer, building tools and frameworks that empower product engineering to move faster, ship high-quality code, and scale reliably across millions of daily users.

You will be deeply native in iOS or Android, with cross-platform contributions across both stacks and a focus on architecture, performance, and developer experience, leveraging AI coding tools to accelerate infrastructure

Qualifications

• 6+ years of native iOS or Android development experience.
• Strong expertise in iOS (Swift/Obj-C/C++) or Android (Kotlin/Java, Jetpack).
• Experience optimising app performance in production at scale.

Responsibilities

• Build and maintain mobile infrastructure, tooling, and shared frameworks to improve engineering efficiency.
• Analyse and optimise UI and infrastructure code, memory footprint, startup time, and rendering performance.
• Design and develop reusable mobile components for iOS and Android.
• Partner with product engineering teams to deliver infrastructure solutions and establish best practices.
• Drive architecture innovations to support world-class mobile app development at scale.
• Improve project structure and engineering workflows to boost productivity and release velocity.

Skills

Native mobile dev

AI coding tools

Performance optimization

Architecture

Tools

Claude Code

Codex

Job description

OKX is seeking a Senior Staff Mobile Engineer to join the Mobile Infrastructure team. You’ll work at the platform layer, building tools and frameworks that empower product engineering to move faster, ship high-quality code, and scale reliably across millions of daily users.

You will be deeply native in iOS or Android, with cross-platform contributions across both stacks and a focus on architecture, performance, and developer experience, leveraging AI coding tools to accelerate infrastructure