Senior Infrastructure Security Engineer-L3 (Palo Alto & NGFW)

About Gruve Gruve is an innovative software services startup dedicated to transforming enterprises to AI powerhouses. We specialize in cybersecurity, customer experience, cloud infrastructure, and advanced technologies such as Large Language Models (LLMs). Our mission is to assist our customers in their business strategies utilizing their data to make more intelligent decisions. As a well-funded early-stage startup, Gruve offers a dynamic environment with strong customer and partner networks. Location - Navi Mumbai, India Position Summary We are seeking an experienced and proactive Senior Infrastructure Security Engineer with strong expertise in Palo Alto Networks NGFW and Panorama administration. The candidate will be deployed at the client site and will serve as the primary technical point of contact for all Palo Alto-related operations and support activities. The role involves managing firewall infrastructure, leading L2 support operations, handling escalations, mentoring junior engineers, and ensuring high availability and security compliance across the client’s network environment. The ideal candidate should possess strong troubleshooting skills, client-handling experience, and the ability to work independently in a managed services environment. Key Responsibilities Lead L2/L3 support for Palo Alto Networks NGFW (PA-Series) infrastructure across the client environment. Manage and troubleshoot security policies, NAT rules, routing, zones, and VPN configurations. Monitor firewall health, traffic logs, threat prevention dashboards, and perform proactive remediation. Perform firmware upgrades, hotfix deployments, and HA failover testing with minimal downtime. Administer Panorama for centralized firewall policy and configuration management. Configure and manage device groups, templates, template stacks, shared objects, and log collectors in Panorama. Handle log collection, reporting, and forwarding profiles through Panorama. Act as the Single Point of Contact (SPOC) for all Palo Alto-related operational issues at the client site. Coordinate with Palo Alto TAC, internal support teams, and stakeholders for escalations and issue resolution. Mentor junior engineers and review configuration changes and operational activities. Manage incident, problem, and change management activities aligned with SLA requirements. Conduct RCA (Root Cause Analysis) and maintain operational documentation including SOPs, runbooks, and handover notes. Prepare MIS reports, operational dashboards, and client status reports. Technical Skills Hands-on experience with Palo Alto Networks NGFW (PA-54K to PA-5K series) Strong expertise in PAN-OS administration and troubleshooting Deep understanding of Panorama administration including device groups, templates, and log collectors Experience with App-ID, User-ID, Content-ID, Threat Prevention, URL Filtering, and WildFire Knowledge of HA configurations (Active/Passive and Active/Active)