Network Engineer

Job Title: Network Engineer

Location: Ashburn, VA - Onsite

Duration: 18+ months

Must-Have skills for the role:

P3 - Network Performance Management (NPM)

P3 - Network Operations & Service Management P3 - Enterprise Network Operations

P3 - Network Management Patterns & Techniques

P3 - Service Quality Management

Job description:

Key Responsibilities:

• Design and deploy high-throughput, low-latency network systems to support Meta's global infrastructure footprint.
• Troubleshoot and optimize Linux-based networking stacks across thousands of nodes.
• Tune Linux kernel networking parameters for performance (RQ affinity, socket buffers, MTU, etc.).
• Automate network provisioning, monitoring, and diagnostics using Python, Ansible, Terraform, or equivalent tools.
• Implement and manage L2/L3 network topologies, including EVPN-VLAN, BGP, OSPF, and static routing.
• Support and troubleshoot Infiniband, RoCEv2, SR-IOV, or smartNIC-based deployments.
• Analyze performance metrics to identify and resolve packet loss, congestion, jitter, and other network anomalies.
• Integrate telemetry and logging solutions using tools such as Prometheus, Grafana, and sFlow/NetFlow.
• Collaborate with security and platform teams to enforce network segmentation, ACLs, and policy enforcement.
• Participate in design reviews, capacity planning, and incident response for critical infrastructure.

Minimum Qualifications:

• Bachelor's or Master's degree in Computer Science, Electrical Engineering, or equivalent experience.
• 5+ years of experience as a Network Engineer working in Linux-dominant environments.
• Strong understanding of TCP/IP stack, multicast, DNS, DHCP, NAT, and Qos.
• Hands-on experience with network configuration on Linux systems (e.g., Netplan, systema-networkd, NetworkManager).
• Proven skills in scripting and automation (e.g., Python, Bash, Git).
• Experience deploying and managing enterprise-grade switches, routers, and NICs (e.g., Arista, Juniper, Mellanox, Broadcom).
• Ability to troubleshoot across physical, data link, and network layers using tools like topdump, iperf, ethtool, nmap, etc.

Preferred Qualifications:

• Experience in hyperscale infrastructure, supporting Al/ML or cloud-scale services.
• Familiarity with Meta's internal tools or similar platforms at scale.
• Understanding of network security principles, including firewalls, VPNs, microsegmentation, and secure provisioning.
• Experience with zero-touch provisioning, out-of-band management, and network bootstrap pipelines.