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Senior Software Engineer, Mobile, Core
Build and maintain OKX’s mobile apps for iOS/Android, shipping trading, wallet, and Web3 features while optimizing performance and collaborating with global teams.
Software Engineer, Mobile, Web3
Build and maintain OKX’s mobile apps for iOS and Android, shipping trading, wallet, and Web3 features while optimizing performance for millions of users.
Software Engineer, Mobile, Core
Build and maintain a core crypto exchange mobile app for iOS/Android, shipping features like trading, asset management, and wallet integrations while optimizing performance for millions of users.
Software Engineer, Mobile, Web3
Build and maintain a mobile crypto exchange app for iOS/Android, shipping trading, wallet, and dApp features while optimizing performance for millions of users.
Senior Staff Software Engineer, Mobile Infrastructure
Build and maintain mobile infrastructure and shared frameworks for OKX’s crypto exchange app, optimizing performance and developer tooling across iOS and Android using AI coding tools.
Staff Software Engineer, Mobile Security
Staff Software Engineer in Mobile Security at a leading crypto exchange, focusing on identifying and mitigating vulnerabilities in mobile apps and platforms using offensive security techniques and AI-assisted workflows.
Senior Backend Kotlin Engineer – Fintech Payments & APIs
Design and scale payment systems in Kotlin/Java, building high-performance backend services for a fast-growing fintech company in Hong Kong.
Senior Fintech Platform Engineer (Backend/ML & Blockchain)
Builds and tests back-end fintech systems integrating ML and blockchain for a government-backed research institute in Hong Kong.
Backend Developer
Build cloud-native banking services and microservices using Java/Kotlin, Kafka, Kubernetes, and AWS.
Cloud-Native Backend Engineer (Kotlin/Java, AWS)
Builds and maintains cloud-native banking microservices in Kotlin/Java on AWS, using PostgreSQL, Aurora, and S3 while practicing TDD and CI/CD.
Backend Engineer – Cloud-Native Microservices (Java/Kotlin)
Builds cloud-native banking microservices in Java/Kotlin, designs REST APIs, and automates deployments using AWS and CI/CD.
Senior Backend Engineer - Java & Kotlin for Scalable APIs
Designs, builds, and maintains scalable backend services and RESTful APIs in Java/Kotlin for a Hong Kong-based tech solutions provider.
Backend Engineer - Java and Kotlin
Build and maintain scalable backend services in Java/Kotlin, designing APIs, databases, and microservices while ensuring performance and reliability.
Senior Kotlin Backend Engineer | Fintech API
Senior Backend Engineer builds and scales Kotlin/Java microservices for a Hong Kong fintech’s payments platform, handling gateways, settlement, and financial APIs.
Frontend Developer (Mobile) - Leading Investment Bank
Build and maintain native mobile apps for a global investment bank, focusing on iOS/Android features, SDK integrations, and secure, high-performance deployments.
Senior Mobile Frontend Engineer – Native iOS/Android
Builds native iOS/Android mobile features, integrates SDKs, and optimizes performance for a global enterprise app while ensuring security and compliance.
Software Engineer II
Senior Software Engineer building cloud services and web apps to help customers design and optimize Wi-Fi networks using Java, Spring Boot, Node.js, and AWS.
Software Developer
Build and maintain mobile apps for a fintech company, focusing on e-wallet and payment systems using Java, Kotlin, and .NET.
Software Developer
Develop and maintain secure, scalable mobile and financial software solutions in Java/Kotlin/JavaScript/C#/.NET, integrating APIs and payment systems for a fintech-focused company.
Front-end Developer
Builds and maintains back-end services, APIs, and integrations while collaborating with front-end teams to deliver responsive, scalable applications using modern tools.