Senior Network Engineer

Title Sr. Network Engineer

Job Description

Key Responsibilities:

Cloud modernization & hybrid connectivity

• Design and deliver hybrid and cloud network architectures across AWS and Azure — VPC/VNet design, Transit

Gateway/Virtual WAN, Direct Connect/ExpressRoute, VPN, DNS, and segmentation — aligned to the cloud

modernization roadmap.

• Build connectivity between on-premises data centers and cloud landing zones, ensuring performance, redundancy,

and secure east-west and north-south traffic flows.

• Codify the network as infrastructure — authoring and reviewing Terraform and Ansible so cloud and hybrid network

changes are repeatable, versioned, and auditable.

Data center consolidation & migration

• Plan and execute network cutovers for data center consolidation and workload migration — discovery, dependency

mapping, low-level design, migration runbooks, and rollback plans.

• Lead cutover events including out-of-hours change windows, coordinating validation and hyper-care with application,

cloud, and infrastructure teams across sites.

• Refactor and decommission legacy DC network components (routing, switching, firewall rules, load-balancer configs,

IP space) as sites are consolidated, retiring technical debt safely.

Network engineering & operations

• Design, implement, and operate enterprise routing and switching (BGP, OSPF, VLANs, VXLAN/EVPN), data center

fabric (Cisco Nexus/ACI or equivalent), SD-WAN, firewalls, and load balancers.

• Own complex troubleshooting as an escalation point for high-severity and cross-domain network incidents — driving

root-cause analysis, resolution, and prevention with minimal supervision.

• Strengthen resilience and security through segmentation, zero-trust principles, and hardening consistent with

healthcare compliance requirements (e.g., HIPAA, PCI-DSS) and Zelis standards.

Observability, automation & continuous improvement

• Improve visibility using monitoring and observability tooling (e.g., SolarWinds, ThousandEyes, NetFlow, SNMP,

Datadog) with actionable alerting and dashboards.

• Automate recurring work — configuration management, compliance checks, and remediation — using Python,

Ansible, and CI/CD to reduce manual effort and change risk.

• Maintain standards — up-to-date designs, runbooks, and diagrams (HLD/LLD) — and contribute to network

standards, patterns, and best practices.

Collaboration & stakeholder engagement

• Partner across US and India stakeholders — cloud, DevOps, SRE, IT operations, security, and application teams — in a

matrixed, follow-the-sun model, ensuring smooth handoffs and shared context.

• Drive work independently translating ambiguous requirements into clear plans, sequencing tasks, and delivering to

timelines without close oversight.

• Communicate clearly to both technical peers and non-technical stakeholders — status, risk, and impact — and

mentor junior engineers on the team.

 Qualifications : 8+ years of hands-on enterprise network engineering experience, including a senior/lead role on

medium-to-large environments.

• Deep, demonstrable expertise in routing and switching — BGP, OSPF, VLANs, spanning tree, and multicast — with

strong fundamentals in TCP/IP, DNS, DHCP, and NAT.

• Proven data center networking experience (Cisco Nexus/ACI, Arista, or equivalent) and hands-on hybrid cloud

networking in AWS and/or Azure (VPC/VNet, Transit Gateway/vWAN, Direct Connect/ExpressRoute, VPN, security

groups/NSGs).

• Hands-on experience with firewalls (Palo Alto, Cisco Firepower/ASA, or Fortinet), load balancers (F5 or equivalent),

and SD-WAN.

• Direct experience delivering data center migration and/or consolidation projects, including cutover planning and

execution during change windows.

• Practical network automation skills — Python and/or Ansible — and working knowledge of infrastructure-as-code

(Terraform) and Git-based workflows.

• Strong, independent troubleshooting ability across the network stack, with a structured root-cause approach.

Excellent written and verbal communication, with a track record of collaborating across geographically distributed

(US/India) teams and time zones.

• Design hybrid-cloud networking solutions connecting AWS, on-premises data centers, and third-party providers.

• Leverage Megaport and similar cloud interconnection platforms to provide scalable and resilient connectivity.

• Drive network automation using Python, Ansible, Terraform, APIs, and Git.

Preferr…