Senior Site Reliability Engineer, Network and Traffic - USDS

Senior Site Reliability Engineer, Network and Traffic - USDS

3 days ago Be among the first 25 applicants

The infrastructure team of US Tech Services Department at Tik Tok supports the company's fast growth by building and operating hyper‑scale datacenters, managing the life cycle of server fleet, providing cloud solutions, and developing various infrastructure services and making sure they are scalable and are reliable.

Site Reliability Engineering (SRE) combines software and systems engineering to build and run large‑scale, massively distributed infrastructures. Our SREs are tasked to ensure the infrastructure services are reliable, fault‑tolerant, efficiently scalable and cost‑effective.

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 Tik Tok network, not limited to backbone, public cloud and Edge/CDN.
• Design, manage, operate and contribute to the development of our Layer7 Load Balancer, CDN origin and DNS.
• Troubleshoot network and/or traffic issues in partnership with our Data Center Partners.
• Work with cross‑functional teams including but not limited to compute, storage, database, application teams to drive the innovation and evolution of Tik Tok network.
• Work with external vendors and ISPs for device and carrier selection, perform testing and verification.
• Participate in the global on‑call rotation to support production traffic and networking issues.

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.
• Familiar with data center network architecture, such as CLOS.
• Self‑motivated, good communication, written skills and team player.
• Bachelor's in Computer Science or a related field, or experience of three or more years in related field.

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.

As a condition of employment, all successful candidates must be able to establish authorization to work in the United States. For this position, the Company does not provide sponsorship for any immigration‑related benefits.

Tik Tok 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 Tik Tok 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 Tik Tok platform and U.S. user data, so millions of Americans can continue turning to Tik Tok 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.

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…