Mobile Software Engineer - iOS

Responsibilities

About the Team Tik Tok's Creation Experience team delivers the core video production technologies across mobile platforms, enabling hundreds of millions of Tik Tok creators to tell their stories, express their emotions, and convey their knowledge in the format of short-form videos.

We are looking for enthusiastic mobile developers at various levels of experience to work on Tik Tok's core technologies of video filming and editing. The technical stack covers various camera features, nonlinear editing on mobile devices, UGC creation workflow, and a lot more. In this role, you will optimize the performance of Tik Tok's next-generation camera technologies, collaborate with external mobile SoC/device/service partners, and deliver the best user experience on a huge variety of mobile platforms for Tik Tok creators around the world.

• Profile and optimize video creation performance and quality, and refine user experience in each and every possible video production workflow for Tik Tok.
• Develop new content creation features to support business requirements.
• Bridge project communication and project coordination across multiple teams for the successful delivery of the latest mobile video technologies.

Minimum Qualifications

• Bachelor or above degree in Computer Science or related majors, with solid coding skills with Swift/Objective-C
• 3+ years of software-development experience; experience with iOS software development. Familiar with multi-threading, common data structures, and common software design patterns.
• Experience with performance monitoring, profiling and optimization for mobile apps, including but not limited to optimization of CPU/GPU/memory usage and power consumption

Preferred Qualifications

• Experience with applying on-device machine learning to product experience improvement.
• Experience with applying AI into the daily work process and product experience improvement.
• Experience with one or more software frameworks: FFmpeg, Metal/OpenGL, AV Foundation, Video Tool Box .
• Experience with one or more video codecs: H.264, H.265, etc.

Tik Tok is the leading destination for short-form mobile video. At Tik Tok, our mission is to inspire creativity and bring joy. Tik Tok'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.

Inspiring creativity is at the core of Tik Tok'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.

Tik Tok 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 Tik Tok, 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.

Tik Tok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at

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