Principal Infrastr Eng

Key Responsibilities

• Design, execute, and document network lab testing and certification.
• Test and certify routers, switches, software releases, patches, SMUs, and network designs.
• Perform functional, interoperability, performance, and regression testing.
• Validate network designs across Campus/Branch, WAN/MAN, Data Center, and low-latency environments.
• Perform risk/CVE-based testing and support patch certification and remediation validation.
• Troubleshoot routing, switching, performance, compatibility, and hardware/software issues.
• Build and improve automated network testing using Python and Ansible.
• Develop reusable automation workflows and improve overall test coverage.
• Work with Kubernetes networking/CNI and support validation of cloud-native network architectures.
• Utilize eBPF/Cilium concepts for networking, observability, policy enforcement, BGP integration, and troubleshooting.
• Work with vendors and engineering teams on product certification, bug validation, and new technology evaluation.
• Create engineering standards, certification documents, test results, recommendations, and technical reports.
• Provide technical guidance and communicate findings to engineering teams and senior stakeholders.

Mandatory Technical Skills

• 8+ years of Network Engineering experience.
• Strong hands-on experience with IP Routing and Switching.
• Strong knowledge of BGP, OSPF, IGMP, PIM and Layer 2 protocols.
• Hands-on experience with Cisco Catalyst/Nexus and/or Arista platforms.
• Experience with network design, testing, certification, and troubleshooting in a LAB environment.
• Strong understanding of Linux administration and networking.
• Hands-on knowledge of Python and Ansible for network automation.
• Experience with Git/GitHub.
• Good troubleshooting knowledge using tcpdump and Wireshark.
• Understanding of Kubernetes architecture and container networking/CNI.
• Exposure to eBPF-based networking; Cilium experience is highly preferred.
• Ability to independently perform complex network testing and certification.

Preferred Skills

• Experience with IXIA and/or Spirent network testing tools.
• Experience with Robot Framework and integration with Ansible.
• Cisco IOS/IOS-XE/NX-OS software/code certification experience.
• Arista 7280/7504/7060 or similar platform experience.
• Network security knowledge including 802.1X, NAC, IPSec, QoS and DDoS mitigation.
• CVE analysis, vulnerability assessment, patch testing, and remediation validation.
• AWS or Azure networking exposure.
• Data Center networking and high-speed connectivity exposure including 10G/25G/40G/50G/100G.
• CCNP-level knowledge required; CCIE is highly desirable.