Mobile Engineer (iOS) - Hong Kong

Stealth Web3 Startup; Hong Kong; On-site; HKD 420,000 - 660,000; Full time

Job summary

Stealth Web3 Startup in Hong Kong is seeking a skilled mobile developer to build cross-platform apps using React Native and to create native iOS modules for performance improvements.

You will maintain and optimize iOS app features, troubleshoot builds and debugging, and work closely with Product, Design, Backend, and Web teams to ensure high-quality releases.

Qualifications

• BS degree in CS/SE or related field preferred.
• Strong CS fundamentals and mobile development experience.
• Experience in architecture design and modular app development.
• Proficient in Swift/Obj-C for iOS development.
• Excellent cross-functional communication and collaboration.
• Self-motivated, ownership-driven with problem-solving skills.

Responsibilities

• Develop cross-platform mobile apps primarily with React Native and build native iOS modules.
• Develop, maintain, and optimize mobile features for iOS app performance and UX.
• Troubleshoot build/packaging, on-device debugging, compatibility issues, and production incidents.
• Collaborate with Product, Design, Backend, and Web teams throughout the lifecycle.

Skills

React Native

Swift/Obj-C

Cross-functional

Problem solving

Education

Bachelor’s in CS/SE

Tools

Expo

CI/CD

Job description

• Develop cross-platform mobile applications primarily using React Native, while also building and optimizing native modules for iOS, with a focus on performance improvements such as memory usage, app startup time, and runtime smoothness.
• Develop, maintain, and optimize mobile app features to ensure the stability, compatibility, and user experience of the iOS application.
• Troubleshoot and resolve common mobile development issues, including build and packaging, on-device debugging, compatibility issues, and production incident investigation.
• Collaborate closely with Product, Design, Backend, and Web teams throughout the development lifecycle, including feature implementation, integration testing, and release delivery.

Qualifications

• Bachelor's degree or above in Computer Science, Software Engineering, or a related field is preferred.
• Solid computer science fundamentals, including data structures, algorithms, design patterns, computer networks, and operating systems.
• Strong coding skills and problem-solving abilities, with the capability to independently analyze and resolve complex technical challenges.
• Experience in technical architecture design, having participated in or led the selection and implementation of the technical architecture for at least one complete application. Experience with modular architecture and component-based development is preferred.
• Proficient in Swift/Objective-C (iOS), with a deep understanding of mobile application architecture and underlying platform technologies.
• Excellent cross-functional communication and collaboration skills, with the ability to effectively communicate technical solutions and drive issue resolution across Product, Design, Backend, and other teams.
• Self-motivated and proactive, with the ability to identify potential risks early, take ownership of problems, and drive them through to resolution.

Preferred Qualifications

• Experience with React Native development.
• Experience with Expo, CI/CD, or automated build and release pipelines.
• Experience developing complex consumer applications, fintech applications, or trading-related mobile applications.