Network Implementation Engineer – Physical Network Infrastructure

About the role

The Network Implementation Engineer will design, build, operate and optimise TikTok's global physical network infrastructure, spanning backbone, data‑centres, public cloud and edge/CDN environments. You will collaborate with cross‑functional teams and external vendors to ensure high availability, scalability and performance for TikTok’s services worldwide.

Key responsibilities

• Design, deploy and optimise the global network architecture, including backbone, data‑centre, public‑cloud and edge/CDN segments.
• Work with compute, storage, database and recommendation system teams to drive network innovation and evolution.
• Coordinate with external vendors and ISPs for device selection, testing and verification.
• Participate in on‑call rotation and travel up to 15‑30% of the time as required.

Required profile

• Bachelor’s degree in Computer Science, Engineering, Mathematics or equivalent experience (3+ years).
• Strong understanding of network protocols such as TCP/IP, DHCP, BGP, OSPF/IS‑IS and MPLS.
• Experience with network monitoring tools and protocols (SNMP, sFlow/NetFlow, Telemetry).
• Hands‑on experience with major network devices from Cisco, Arista, Juniper, H3C, Huawei or similar vendors.

Required skills

• Familiarity with data‑centre architectures (e.g., CLOS).
• Knowledge of MPLS traffic‑engineering technologies (Segment Routing, RSVP, LDP).
• Understanding of IPv4/IPv6 coexistence and related protocols.
• Programming/scripting ability in Python or comparable language.