L3 Network Engineer (Quincy)

• Design, build, and optimize high-availability network architectures from the Core layer down, tailoring solutions to a dynamic, large-scale data center environment.

• Manage a demanding design workload driven by aggressive project requests, producing comprehensive documentation, engineering plans, and technical templates.

• Lead the internal L3 Network Peer Reviews and present complex architectures to external Change Advisory Boards (CAB) to secure deployment approvals.

• Act as the primary technical escalation point for Major Incident Management (MIM), leading troubleshooting efforts to rapidly resolve severe routing and core-layer outages.

• Participate in a strict, rotating On-Call process for high-stakes after-hours incidents, running from Thursday to Thursday.

• Oversee and execute complex, high-risk after-hours change requests, including core migrations, firmware/EOS upgrades, and major topology shifts.

• Collaborate with L1 and L2 deployment engineers, translating high-level designs into actionable physical and logical implementation tasks.

Role Overview: Own the architecture, design, and high-level escalation of network infrastructure within an Enterprise level data center, driving the transition from Cisco to Arista hardware. This role focuses on managing the Core layer down, handling a demanding design workload, navigating complex governance approvals, and serving as the primary technical escalation point for critical routing incidents. The ideal candidate possesses deep expert-level experience in large-scale data center environments and thrives under high-pressure scenarios., * 7-10+ years of experience in a dedicated enterprise network design or senior engineering role within a large-scale data center environment.

• Expert-level hands-on experience with Cisco Nexus switches (7k, 9k series) and deep architectural knowledge of Arista data center hardware (Spine-Leaf networks).

• Advanced mastery of core data center routing protocols and overlay/underlay technologies, specifically BGP, OSPF, EVPN, and VXLAN.

• Proven experience leading Major Incident Management (MIM) bridges and navigating high-pressure, revenue-impacting infrastructure failures.

• Extensive experience navigating formal change management governance, architecture review boards, and peer-review processes.

• Deep familiarity with multi-tier and spine-leaf data center design principles, load balancing strategies, and high-density fiber topologies. · Expertise utilizing Arista CloudVision (CVP) for automation, telemetry, network management, and monitoring.

• Experience with network automation tools (Ansible, Python) to streamline data center design deployments.

• Cisco CCNP/CCIE or Arista ACE L3/L4 certifications.

• Experience designing and executing large-scale, live data center migrations from Cisco NX-OS to Arista EOS.

Compensation: $50/hr to $60/hr

**Exact compensation may vary based on several factors, including skills, experience, and education.

Employees in this role will enjoy a comprehensive benefits package starting on day one of employment, including options for medical, dental, and vision insurance. Eligibility to enroll in the 401(k) retirement plan begins after 90 days of employment. Additionally, employees in this role will have access to paid sick leave and other paid time off benefits as required under the applicable law of the worksite location.