Global Network Engineer – Hyperscale DC & Cloud SDN

TikTok; Dublin; On-site; EUR 110,000 - 170,000; Full time

Job summary

TikTok is hiring a Network Engineer to design, build, operate and optimize its global network spanning backbone, data centers, public cloud and Edge/CDN from our Dublin base. You will collaborate with cross-functional teams and external vendors to advance IPv4/IPv6, MPLS, and SDN-driven architectures while ensuring reliability at scale.

Travel may be required up to 15–30% of the time, and you will participate in oncall rotations to support 24/7 global services.

Qualifications

• Knowledge of TCP/IP, DHCP, BGP, OSPF/IS-IS, and MPLS technologies.
• Familiar with data center networks (e.g., CLOS) and monitoring tools (SNMP, sFlow/NetFlow, Telemetry).
• Hands-on experience with major network devices (Cisco, Arista, Juniper, Huawei, etc.).
• Strong communication and teamwork; able to participate in on-call rotation.

Responsibilities

• Design, build, operate and optimize TikTok's global network across backbone, data centers, public cloud and Edge/CDN.
• Collaborate with cross-functional teams to drive network innovation and evolution.
• Coordinate with external vendors and ISPs for device and carrier selection, testing and verification.
• Travel may be required up to 15% - 30% of the time.

Skills

TCP/IP

BGP/OSPF/IS-IS

Network monitoring

Data center networking

Cisco/Arista/Juniper

On-call rotation

Communication skills

Education

Bachelor's in CS/Engineering

Tools

Cisco gear

Arista gear

Juniper gear

Broadcom/Barefoot chips

Python scripting

Job description

TikTok is hiring a Network Engineer to design, build, operate and optimize its global network spanning backbone, data centers, public cloud and Edge/CDN from our Dublin base. You will collaborate with cross-functional teams and external vendors to advance IPv4/IPv6, MPLS, and SDN-driven architectures while ensuring reliability at scale.

Travel may be required up to 15–30% of the time, and you will participate in oncall rotations to support 24/7 global services.