Responsibilities

Multimedia Platform department is mainly responsible for multimedia processing systems, including video transcoding systems, cloud editing systems and image processing systems. The technology stack involved includes backend services, multimedia engineering, multimedia frameworks, heterogeneous computing, etc. Our platform processes hundreds of millions of videos and tens of billions of pictures every day, strongly supporting the development of TikTok.

Our vision is to build the best multimedia processing platform and become the best multimedia engineering architecture team.

We are looking for experienced talents to join our Sydney team. In this role, you will have the prospect to work on large-scale multimedia processing systems and high-performance computing frameworks, collaborate with cross-functional teams, and solve challenging engineering problems across multimedia, heterogeneous computing and AI infrastructure.

Responsibilities

- Participate in the development of video computing framework to support the efficient processing of the company's massive video and complex business needs.
- Support the multimedia-related business requirements of the company's product lines, including but not limited to image processing, video transcoding, video editing, video analysis, etc.
- Responsible for video processing related performance analysis and optimization.
- Participate in the design and optimization of large-scale multimedia processing systems, improving system throughput, latency, stability and resource utilization.
- Collaborate with product, algorithm, platform and infrastructure teams to explore and implement solutions for multimedia and AI-related engineering scenarios.

Qualifications

Minimum Qualification(s)

- Bachelor's degree or above in Software Development, Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline.
- 2+ years of hands-on industry experience in software engineering, multimedia systems, high-performance computing, backend infrastructure,



heterogeneous computing, or related areas.
- Proficient in at least one of the mainstream languages C/C++/Python/Go, with excellent coding, debugging and problem-solving skills.
- Solid understanding of computer systems fundamentals, including operating systems, data structures, algorithms, networking and concurrent programming.
- Proficiency in Chinese and English is required to collaborate with global partners and key stakeholders based in Mandarin-speaking markets, where Mandarin is a primary working language.

Preferred Qualification(s)

- Experience in multimedia-related technology such as video codec, detection, enhancement, image/video processing or media framework development.
- Experience in media processing framework development is preferred.
- Experience in video processing-related performance optimization is preferred.
- Experience in transcoding or computing platform development is preferred.
- Familiar with GPU hardware architecture, and proficient in one or more inference optimization software stacks such as CUDA, CUTLASS or similar toolchains; experience in AI model performance analysis and operator optimization on at least one heterogeneous chip or accelerator is preferred.
- Understanding of mainstream LLM and multimodal model architectures, mainstream inference frameworks such as vLLM and SGLang, and common large model parallelism strategies is preferred.
- Understanding of common large model quantization algorithms and operator optimization solutions is a plus.
- Positive and optimistic, strong sense of responsibility, careful and meticulous work, good team communication and collaboration skills.

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.​

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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.​

Acknowledgment of Country In the spirit of reconciliation, TikTok acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.​

📌 Multimedia Engineer - Multimedia Software Development (Mandarin Speaking) (Sydney)
🏢 Tiktok
📍 Sydney