Network Engineer, GPU Network Direction - Portland

Network Engineer, High Performance GPU Network Direction - Portland, OR

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The Networking team brings together innovative ideas and technologies from network architecture, software‑defined networking (SDN), network virtualization, switch software and hardware co‑design, and high‑speed networking to create hyperscale data‑center networking solutions that power several of the most popular apps of the world, such as Douyin and Tik Tok, which serve hundreds of millions of users globally.

The Networking team is responsible for designing, building, and operating the global, intelligent network infrastructure to meet the requirements of high availability, scalability, and high performance. By joining this team, you will gain marketable software development and/or network operation experience in data center networking on a massive scale.

• Responsible for the design, validation, implementation, and operation of Tik Tok's global high performance computing (HPC) networks.
• Work with cross‑functional teams—including, but not limited to, machine learning (ML), compute and storage—for the innovation and evolution of the HPC network.
• Work closely with external vendors to explore state‑of‑the‑art architecture and next‑generation technology.
• Build software and tools to improve the reliability and availability of HPC network infrastructure.
• Ensure the reliability of the company's global network by participating in on‑call rotation.

• Bachelor's in Computer Science, Information Science, Engineering, Mathematics, or a related field, or experience equivalent to a Bachelor's degree.
• 5 years of working experience and above.
• Expertise with HPC network topologies, like RDMA over Converged Ethernet (RoCE) or Infini Band (IB).
• Good understanding of network protocols including TCP/IP, DHCP, BGP, OSPF/IS‑IS, and MPLS related technologies.
• Experience with building HPC networks.
• Self‑driven, with good communication and written skills.

• Experience in high-performance computing (HPC) network topologies, particularly those familiar with Remote Direct Memory Access over Converged Ethernet (RoCE) or Infini Band (IB).

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 toward every day.

We strive to do great things with great people. We lead with curiosity, humility, and a desire to make an 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. We celebrate diverse voices and create an environment that reflects the many communities we reach.

We are 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

Seniority Level: Mid‑Senior level.

Employment Type:

Full‑time. Job Function:
Information Technology. Industries:
Software Development, Computer Networking Products, Technology, Information and Internet.