Software Engineer (iOS) – Mobile Infrastructure (Platform Services)

by OKX

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28 May 2025

About OKX:

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual’s freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

Responsibilities:

Develop and maintain reusable iOS app components, such as networking, event tracking….
Build mobile infrastructure and tools to enhance engineering efficiency
Analyze and optimize UI and infrastructure application code for better performance
Responsible for overall performance optimization of the application, including performance analysis, tuning, and bottleneck identification.
Collaborate with product engineering teams to deliver technical solutions and best practices
Optimize the project structure and workflow to improve engineering productivity, efficiency, and quality
Drive architecture innovations to support world-class mobile app development

Requirements:

Bachelor’s degree or equivalent practical experience
3+ years of industry experience in iOS development
Experience in building and shipping complex, business critical iOS app products with frequent iteration
Deep understanding of performance analysis tools and debugging techniques, capable of resolving performance issues.
Rich experience in app size optimization, startup performance improvement, lag optimization, low-end device user experience improvement.
Deep understanding of design patterns and principles with a broad knowledge of iOS techstack
Familiar with Objective-C, Swift , C/C++ and other tools like Xcode and instruments
Deep understanding of iOS SDK to create scalable, dynamic, and highly performant UI components
Working knowledge of remote APIs, concurrency, layouts, transitions, animations, client side persistence, and architectural patterns on mobile apps

Nice-to-haves:

Experience working in a complex, matrix organization involving cross-functional and/or cross-business projects
Experience working in a mobile architecture/infrastructure team with deep understanding of the techstack in these projects
Experience in sub-engineering areas such as performance optimization, toolchain, automated testing, design pattern, etc.
Strong communication skills; enjoy working as a team while being comfortable with delivering large business outcomes independently

Perks & Benefits:

Competitive total compensation package
L&D programs and Education subsidy for employees’ growth and development
Various team building programs and company events
Wellness and meal allowances
Comprehensive healthcare schemes for employees and dependants
More that we love to tell you along the process!

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Employment Type

On-site

OKX

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Software Engineer (iOS) – Mobile Infrastructure (Platform Services)

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