Mobile Software Engineer - TikTok Social

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

Responsibilities

We are the messaging team on TikTok. Our team's mission is to facilitate meaningful user connections through TikTok's messaging experience, which is still in its infancy. We achieve our mission by building and shipping tools that help our users more easily connect and share the things they care about.

We are looking for passionate mobile software engineers to join us and help contribute to our aim of helping users explore and discover the world's creativity, knowledge and moments that matter in everyday life, all while empowering everyone to be a creator directly from their smartphones.

• 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.

Qualifications

Minimum Qualification(s):

• 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, etc.); proficient in at least one mobile development stack (iOS: Objective-C/Swift; Android: Kotlin/Java) and familiar with the corresponding platform framework.

Preferred Qualification(s):

• Good team communication and collaboration skills.
• Passion and experience building consumer-facing products is a huge plus; we would love to hear about apps you've developed.
• Interest in or practical experience with AI Skills/AI Agents.

About TikTok

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day.

We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.