IOS Software Engineer intern (Client AI) - 2026 Start (BS/MS)

At TikTok, innovation is the core of our mission to inspire creativity and bring joy to a global community. Through our groundbreaking short-form video platform, we are revolutionizing how content is created, discovered, and shared. Our technological prowess lies in one of the industry's most sophisticated recommendation algorithms, which delivers a hyper-personalized and engaging 'For You' feed that learns and adapts to each user's unique preferences with remarkable speed and accuracy. This powerful engine for content discovery has not only captivated billions of users worldwide but has also created a new paradigm for creators and brands to connect with audiences in an authentic and impactful way. We are constantly pushing the boundaries of what's possible in mobile video, empowering users with an ever-expanding suite of intuitive yet powerful creative tools, filters, and effects that make content creation accessible to everyone.

Our technological infrastructure is built on a robust and scalable microservices architecture, leveraging leading cloud platforms like Amazon AWS and Microsoft Azure to support our massive global user base. We harness the power of big data frameworks such as Apache Spark and Flink for real-time data processing, ensuring our platform remains responsive and dynamic. Machine learning is the heartbeat of TikTok, driving not only our recommendation engine but also content analysis, user profiling, and safety moderation systems. By meticulously orchestrating this complex tech stack, from native mobile development in Swift and Kotlin to a hybrid database strategy, we have engineered a platform that not only handles immense scale but also fosters a vibrant ecosystem where trends are born, cultures are shared, and creativity flourishes. We are more than a social media app; we are a cultural force, continuously innovating to build a safe, joyful, and endlessly entertaining global stage.