Network Engineer - Physical Network Infra - Dublin, Ireland

• Design, build, operate and optimize TikTok's global network, including backbone, data center, public cloud and Edge/CDN.
• Work with cross-functional teams including but not limited to compute, storage, database, recommendation system, drive the innovation and evolution of TikTok network.
• Work with external vendors and ISPs for device and carrier selection, perform testing and verification.
• Travel may be required up to 15% - 30% of the time.

The Network Engineering-Physical Network Infra team is part of the global technology structure and 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 TikTok.

Minimum Qualification(s): - Good understanding of network protocols including TCP/IP, DHCP, BGP, OSPF/IS-IS and MPLS related technologies. - Good understanding of network monitoring protocols and tools, such as SNMP, Sflow/netflow, Telemetry. - Familiar with data center network architecture, such as CLOS. - Hands-on experience of major network devices, such as Cisco, Arista, Juniper, H3C, Huawei and other mainstream vendors. - Self-motivated, good communication and written skills. - Team player who can participate in TikTok's global network oncall rotation.

Preferred Qualification(s): - Bachelor's in Computer Science, Information Science, Engineering, Mathematics, or a related field, or experience equivalent to a Bachelor's degree based on three or more years of work experience - In-depth knowledge of network protocols and implementation in hyper scale data center networks. - In-depth knowledge of MPLS related Traffic Engineering technologies, such as Segment Routing, RSVP, and LDP etc. - In-depth knowledge of public cloud architecture, such as AWS, GCP, Azure, Ali Cloud, OCI, etc. - Familiar with mainstream commercial switch/router chipsets, such as Broadcom, Barefoot etc. - Good understanding of IPv6 and IPv4-IPv6 co-existence technologies. - Programming/scripting in Python or other languages.