Mobile Messaging Engineer — Real-Time Chat & AI Tools

re-zoo-me; Singapore; Hybrid; SGD 80,000 - 120,000; Full time

Job summary

TikTok is seeking passionate mobile software engineers to join the Messaging team and contribute to a new, user-centric messaging experience. You will work on client-side development for Android and iOS, shaping chat features, real-time calls, and AI-enhanced productivity across platforms.

Join a team focused on enabling creators and everyday users to connect and share with ease, while optimizing performance, stability, and UX.

Qualifications

• Bachelor's degree or above in Computer Science, Software Engineering, Electronic Information Engineering, or related fields.
• Strong learning and communication skills, and a sustained passion for technology.
• Strong logical analysis and system abstraction abilities; able to understand and debug large and complex code bases.
• Proficient in AI coding tools.
• Solid computer fundamentals (data structures, algorithms, operating systems); proficient in at least one mobile development stack (iOS: Objective-C/Swift; Android: Kotlin/Java) and familiar with the corresponding platform framework.

Responsibilities

• Responsible for the client-side (Android & iOS) development and iteration of TikTok Messaging, building core chat experiences including the chatroom, stickers, and Streak social-interaction features.
• Develop and optimize real-time Voice & Video Call capabilities and client-side IM infrastructure (IMSDK, on-device data management) to deliver a smooth, and reliable core messaging experience.
• Explore AI-powered engineering efficiency by building AI skills and knowledge bases and creating AI agents to assist daily development and collaboration workflows, improving the team's overall requirement-iteration efficiency and code quality, and optimizing cross-platform (iOS/Android) consistency.
• Continuously optimize client performance, stability, and smoothness, optimize package size and resource consumption, and improve the user experience.

Skills

Mobile development

iOS/Android

AI tools

Problem solving

Communication

Education

Bachelor's degree in Computer Science or related

Tools

iOS SDK

Android SDK

Swift/Objective-C

Kotlin/Java

Job description

TikTok is seeking passionate mobile software engineers to join the Messaging team and contribute to a new, user-centric messaging experience. You will work on client-side development for Android and iOS, shaping chat features, real-time calls, and AI-enhanced productivity across platforms.

Join a team focused on enabling creators and everyday users to connect and share with ease, while optimizing performance, stability, and UX.