Mobile Engineer (iOS/Android) - Cross-Platform React Native

TOKENINSIGHT SG PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

TOKENINSIGHT SG PTE. LTD. is seeking a Mobile Engineer (iOS / Android) to build and maintain high-quality mobile applications across iOS and Android platforms, collaborating with Product, Design, Backend, and Web Engineering teams to deliver fast, reliable experiences.

You will develop cross‑platform apps with React Native, optimize performance, and contribute to scalable mobile architecture. Proficiency in Java/Kotlin or Swift/Obj‑C and strong problem‑solving are essential.

Qualifications

• Bachelor's degree in Computer Science or Software Engineering or related field.
• Strong CS fundamentals including data structures and algorithms.
• Proficient in Java/Kotlin (Android) or Swift/Objective-C (iOS).
• Experience developing native mobile apps (iOS or Android).
• Strong problem-solving and analytical skills; can diagnose and resolve issues independently.
• Experience designing or contributing to the technical architecture of at least one end-to-end mobile app.
• Familiarity with modular architecture, component-based development, and best practices.
• Strong communication and collaboration skills for cross-functional work.

Responsibilities

• Develop and maintain cross-platform mobile applications using React Native, with native modules for iOS/Android when needed.
• Design, develop, test, and enhance mobile features for performance, stability, and UX.
• Optimize memory usage, startup time, rendering performance, and responsiveness.
• Troubleshoot builds, packaging, device compatibility, debugging, and production incidents.
• Collaborate with Product, Design, Backend, QA, and Web Engineers across the SDLC.
• Participate in technical design discussions and contribute to scalable mobile architecture.

Skills

Strong communication

Collaboration

Problem-solving

Analytical skills

Self-driven

Education

Bachelor's degree in Computer Science or Software Engineering

Tools

React Native

Expo

CI/CD pipelines

Mobile build & release processes

Java/Kotlin

Swift/Objective-C

Job description

TOKENINSIGHT SG PTE. LTD. is seeking a Mobile Engineer (iOS / Android) to build and maintain high-quality mobile applications across iOS and Android platforms, collaborating with Product, Design, Backend, and Web Engineering teams to deliver fast, reliable experiences.

You will develop cross‑platform apps with React Native, optimize performance, and contribute to scalable mobile architecture. Proficiency in Java/Kotlin or Swift/Obj‑C and strong problem‑solving are essential.