Senior Network Engineer, Director – Critical Infrastructure & Patch Deployment

Overview    We are seeking a highly skilled and hands-on  Senior Network Engineer  to join our Enterprise Network Services team. This role is responsible for  deploying, and  supporting critical network infrastructure across both internal enterprise environments and external customer-facing platforms.    The ideal candidate will have extensive experience planning and executing  critical network security and infrastructure patch rollouts  in fast-paced, highly regulated, and uptime-sensitive environments.  The  role requires deep expertise in routing, switching, data center networking, internet connectivity, network security, and production change management.    The successful candidate will demonstrate a strong track record of executing complex infrastructure changes with minimal risk, maintaining network resiliency, and supporting business-critical services operating in 24x7 global environments.

Implement, and support enterprise-scale network infrastructure across data centers, cloud, and campus environments.     Provide Tier-3 support and technical leadership during major incidents and escalations.    Develop and maintain network standards, update documentation, and engineering procedures.    Lead planning, testing, risk assessment, and deployment of critical security and infrastructure patches across production environments.    Drive execution of complex maintenance activities with minimal customer or business impact.    Coordinate maintenance windows, rollback plans, validation testing, and post-implementation reviews.    Ensure compliance with security, audit, and regulatory requirements through timely remediation of vulnerabilities.    Partner with Security, Infrastructure, Application, and Operations teams to prioritize and execute remediation activities.     Coordinate end-to-end remediation activities including maintenance windows and pre/post validations across multiple stakeholders, including business application owners, multiple infrastructure teams (Unix, Load Balancer, Firewall  etc ), security teams, and all relevant third-party vendors (Cisco/Arista  etc ).    Maintain high availability and resilience of business-critical services.    Monitor network performance and proactively identify risks before they impact production.    Develop automation solutions using Python, Ansible, or similar tools to improve operational and deployment efficiency.    Standardize deployment procedures and reduce manual intervention through automation.    Drive operational excellence through continuous process improvement and infrastructure optimization.        Required Technical Skills    Strong hands-on experience with:    Cloud observability skill set and cloud native tools like CloudWatch, APIs, VPC reachability analyzer, Network Watcher etc.     Leaf-Spine Architectures across Cisco and Arista Platforms    Ansible, Python,  Terraform,   Github  and Jira expertise along with network knowledge on various protocols like BGP/OSPF etc.

8+ years of enterprise network engineering experience.    Proven experience executing critical security patching and production network upgrades in large-scale environments.    Strong experience supporting both internal infrastructure and internet-facing production services.    Experience operating in financial services, trading, telecommunications, cloud, or other mission-critical environments.    Demonstrated ability to perform complex maintenance and migration activities during scheduled change windows.    Strong understanding of network resiliency, high availability, and disaster recovery principles.

CCNP, CCIE, or equivalent industry certifications.    Knowledge of network automation frameworks.    Experience