Network Engineer - USDS

About TikTok U.S. Data Security
TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. U.S. Data Security (“USDS”) is a subsidiary of TikTok in the U.S. This new, security-first division was created to bring heightened focus and governance to our data protection policies and content assurance protocols to keep U.S. users safe. Our focus is on providing oversight and protection of the TikTok platform and U.S. user data, so millions of Americans can continue turning to TikTok to learn something new, earn a living, express themselves creatively, or be entertained. The teams within USDS that deliver on this commitment daily span across Trust & Safety, Security & Privacy, Engineering, User & Product Ops, Corporate Functions and more.

Why Join Us
Creation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible.
Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day.
To us, every challenge, no matter how difficult, is an opportunity to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always.
At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve.
Join us.

Team Intro
TikTok USDS Traffic and Networking team brings together virtual and physical technologies to create hyperscale data-center networking solutions that power several of the most popular apps in the world, such as TikTok, which serves millions of US users. This team is also responsible for designing, building, and operating the intelligent network and traffic infrastructure to meet the requirements of high availability, scalability, and high-performance. By joining this team, you will gain marketable software development and network operations experience in data center networking.

In order to enhance collaboration and cross-functional partnerships, among other things, at this time, our organization follows a hybrid work schedule that requires employees to work in the office 3 days a week, or as directed by their manager/department. We regularly review our hybrid work model, and the specific requirements may change at any time.

Responsibilities:
- Design, build, operate and optimize TikTok USDS network, not limited to, backbone, public cloud and Edge/CDN.
- Design, manage, operate and contribute to the development of our Layer 7 load balancer, CDN origin and DNS.
- Troubleshoot network and / or traffic issues in partnership with our Trusted Technology Partner.
- Work with cross-functional teams including but not limited to compute, storage, database, recommendation system, drive the innovation and evolution of the network.
- Work with external vendors and ISPs for device and carrier selection, perform testing and verification.
- Participate in TikTok USDS traffic and networking global on-call rotation.Minimum Qualifications
- Good understanding of network protocols including TCP/IP, RSVP, DHCP, BGP, OSPF/IS-IS and MPLS related technologies.
- Good understanding of network monitoring protocols and tools, such as SNMP, Sflow/netflow, Telemetry.
- Hands on experience with one or more of the following: Load Balancers, DNS, CDN origin, Datacenter networking.
- Familiarity with data center network architecture, such as CLOS
- Bachelor's in Computer or Engineering related field, or experience equivalent to a Bachelor's degree based on three or more years of relevant work experience

Preferred Qualifications
- Significant experience configuring and optimizing Nginx.
- In-depth knowledge of network protocols and implementation in hyper-scale data center networks.
- In-depth knowledge of public cloud architecture, such as AWS, GCP, Azure, Ali Cloud, OCI, etc.
- Good understanding of IPv6 and IPv4-IPv6 co-existence technologies.
- Programming/scripting in Python, Go or other languages.

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.

TikTok 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 https://shorturl.at/ktJP6

This role requires the ability to work with and support systems designed to protect sensitive data and information. As such, this role will be subject to strict national security-related screening.