In the fast-evolving world of cryptocurrency and blockchain technology, mobile applications are no longer just a convenience—they're a necessity. As more users turn to their smartphones for trading, asset management, and decentralized app (dApp) access, the demand for high-performance, reliable, and scalable mobile infrastructure has never been greater. At OKX, we're building the future of finance, one line of code at a time.
As a Senior/Staff Software Engineer (Android) focused on Mobile Infrastructure, you’ll play a pivotal role in shaping the core architecture of the OKX mobile app—a platform trusted by millions of users worldwide. Your work will directly impact performance, scalability, and developer efficiency across one of the most widely used crypto applications in the industry.
Why OKX?
OKX is more than just a leading crypto exchange—it's a gateway to financial freedom powered by blockchain innovation. Through our ecosystem of products including the OKX Wallet, OKLink, and our flagship trading platform, we empower individuals and institutions alike to participate in the decentralized economy.
We believe in transparency, security, and user empowerment—principles reinforced by our Proof of Reserves and commitment to responsible innovation. With teams spread across global offices, we’re united by core values: We Before Me, Do the Right Thing, and Get Things Done. These aren’t just slogans—they’re the foundation of our culture, driving collaboration, accountability, and impact.
👉 Discover how your engineering expertise can shape the next generation of mobile crypto experiences.
The Role: Building the Backbone of Mobile Excellence
This is not a typical feature-building role. As a Senior/Staff Android Engineer on the Mobile Infrastructure team, you'll focus on the underlying systems that enable rapid, reliable development across the entire OKX mobile application.
You’ll work at scale—supporting millions of daily active users—while ensuring that every update enhances performance, stability, and developer velocity. Whether it’s optimizing UI rendering, reducing APK size, or designing reusable components, your contributions will serve as the foundation upon which new features are built.
Key Responsibilities
- Develop and maintain mobile infrastructure tools that improve engineering efficiency and streamline development workflows.
- Analyze and optimize application code across both UI and backend layers to enhance speed, responsiveness, and memory usage.
- Design and implement reusable Android components that promote consistency, reduce duplication, and accelerate feature delivery.
- Collaborate cross-functionally with product, design, and other engineering teams to translate business needs into scalable technical solutions.
- Refactor and modernize project architecture to support long-term growth, modularity, and testability.
- Lead architectural innovations that position the OKX app for future advancements in mobile technology and crypto functionality.
What We’re Looking For
To thrive in this role, you need deep technical expertise in Android development, a passion for clean architecture, and a mindset oriented toward long-term scalability.
Core Requirements
- Bachelor’s degree in Computer Science or equivalent practical experience.
- 5+ years of professional Android development experience, with a proven track record of shipping complex, high-impact applications.
- Hands-on experience building and maintaining business-critical Android apps with frequent release cycles.
- Demonstrated success in performance optimization, including reducing memory footprint, improving startup time, and minimizing app bundle size.
- Strong command of Android SDK, modern UI frameworks, and lifecycle management.
- Proficiency with Jetpack components, Retrofit, RxJava, Litho, or similar open-source libraries.
- Solid understanding of architectural patterns such as MVVM, MVI, or Clean Architecture.
- Experience working with remote APIs, concurrency models, data persistence strategies, animations, and transitions.
Preferred Qualifications
- Prior experience in mobile infrastructure or platform engineering, especially within large-scale apps.
- Familiarity with toolchain development, automated testing frameworks, CI/CD pipelines, and static analysis tools.
- Background working in matrix organizations with cross-functional teams spanning product, design, backend, and DevOps.
- Strong communication skills with the ability to lead technical discussions and mentor junior engineers.
- A self-starter mentality—you can drive projects independently while thriving in a collaborative environment.
Keywords Driving This Opportunity
The following core keywords reflect both the technical depth and strategic importance of this role:
Senior Android Engineer, Mobile Infrastructure, Performance Optimization, Android SDK, App Architecture, Reusable Components, Crypto Mobile App, Engineering Efficiency
These terms aren’t just relevant for search visibility—they represent real challenges and opportunities you’ll engage with daily.
👉 See how your skills in Android architecture can power a global crypto platform used by millions.
Frequently Asked Questions (FAQ)
Q: Is prior experience in blockchain or cryptocurrency required?
A: While direct experience in crypto is not mandatory, candidates should be eager to learn about decentralized technologies and their implications for mobile development. OKX provides onboarding resources and internal knowledge sharing to help engineers quickly get up to speed.
Q: What does “mobile infrastructure” mean in practice?
A: It means building the internal tools, libraries, and systems that other engineers use every day—everything from custom UI components and network layers to build automation scripts and performance monitoring frameworks. You're enabling others to build faster and better.
Q: How does OKX support career growth for engineers?
A: We offer clear technical career paths, regular feedback cycles, access to cutting-edge tech stacks, and opportunities to lead high-impact initiatives. Engineers are encouraged to contribute to open-source projects and attend industry conferences.
Q: Are remote candidates considered for this position?
A: Yes, OKX supports flexible work arrangements depending on location and team needs. We value talent wherever it exists.
Q: What sets OKX apart from other fintech or crypto companies?
A: Our combination of user scale, product diversity (from trading to dApps), technical rigor, and transparent operations makes us unique. We balance startup agility with enterprise-grade reliability.
Make an Impact at the Forefront of Mobile Innovation
As a Senior/Staff Software Engineer at OKX, you won’t just be maintaining an app—you’ll be redefining what’s possible in mobile crypto experiences. From optimizing frame rates during live market updates to designing modular architectures that support rapid innovation, your work will have measurable impact on real users navigating volatile markets with confidence.
You’ll collaborate with world-class engineers, contribute to open technical discussions, and help shape best practices that ripple across the organization. If you're passionate about performance, scalability, and building systems that last—you belong here.
👉 Join a team where your code powers financial freedom for millions around the world.