iOS Software Engineer – Messaging Team (Singapore)

About the role

Join TikTok's Messaging team as an iOS Software Engineer, building the core chat experience for millions of users. You will work on innovative features such as chatrooms, stickers, streaks, and real‑time voice and video calls, helping users connect and share moments directly from their smartphones.

Key responsibilities

• Develop and iterate the iOS client for TikTok Messaging, delivering core chat functionalities.
• Build and optimize real‑time voice & video call capabilities and the client‑side IM infrastructure (IMSDK, on‑device data management).
• Explore AI‑powered tools, creating AI agents and knowledge bases to improve development efficiency and code quality.
• Continuously improve client performance, stability, package size, and resource consumption to enhance user experience.

Required profile

• Bachelor’s degree in Computer Science, Software Engineering, Electronic Information Engineering, or a related field.
• Strong learning ability, communication skills, and a sustained passion for technology.
• Excellent logical analysis and system abstraction skills; capable of debugging large, complex codebases.
• Interest or experience with AI coding tools, AI skills, or AI agents is preferred.

Required skills

• Proficiency in Objective‑C or Swift and the iOS development framework.
• Solid understanding of data structures, algorithms, and operating systems.
• Experience with AI coding tools and familiarity with IMSDK or similar IM infrastructure.