L3 Network Engineer - Aruba

Key Responsibilities and Expertise : - Acted as the escalation point for Help Desk (HD) and Level 2 engineers. - Worked as a Subject Matter Expert (SME) for network and security infrastructure. - Designed and developed secure network architectures for large-scale projects. - Created design documents: Basis of Design, SOW, HLD, LLD, Implementation Plans. - Implemented firewalls, IPS, VPNs, SSL offload, DDoS protection, device hardening, and other security controls. - Designed LAN, WAN, VPN requirements for Data Centers and branches. - Manage, monitor, and troubleshoot complex network environments, including routing, switching and security infrastructure. - Configure, deploy, and support Layer 2 and Layer 3 devices, including routers, switches, and firewalls. - Implement and troubleshoot advanced routing protocols (e.g., BGP, OSPF, EIGRP, MPLS). - Manage VLANs, STP, EtherChannel, and other switching configurations. - Work on WAN optimization, QoS configurations, and traffic shaping. - Collaborate with cross-functional teams to support network integration and upgrades. - Document network configurations, processes, and troubleshooting guidelines. - Managed end-to-end project lifecycle planning, design, implementation, testing, and handover. - Participated in Functional Design Document review meetings. - Took ownership of incident and change management, including root cause analysis. - Worked on security threat identification and mitigation. - Verified configuration and architecture changes made by other teams. - Closed all audit findings within deadlines and provided required evidence. - Ensured all network devices followed security best practices and internal policies. - Supported branch design teams to implement security from day one. - Assisted with deployment, installation, and hardware configuration, including offsite. - Maintained network documentation: configurations, diagrams, and procedures. - Provided 24x7 support for critical network operations. - Configured user authentication via TACACS, RADIUS, and AAA protocols. - Implemented privilege-based access, password encryption, and secure terminal access. - Addressed vulnerabilities from OEMs, CERT, SOC, and internal audits. - Handled incident and problem management, tracking issues till resolution. - Collaborated with OEM technical teams for advanced issue resolution. - Strong in communication, stakeholder management, and team collaboration. - Proactive, adaptable, and ready to take on new challenges. Product Knowledge / Hands on Experience: - Aruba Central Cloud management. - Aruba CX, AOS and Comware Switches (6300M, 8360, 6400, 8100, 2930M, 5940). - Aruba WLAN Gateway managed by Aruba Central (9200 & 7200 Series - AOS 10). - Aruba Access Points managed by Aruba Central (515 & 655 - AOS 10). - Juniper Router, Switches, Mist Access Points, SRX firewalls. - ClearPass Policy Manager. - FortiGate Firewall. - Paloalto Firewall. - Checkpoint Firewall. Certifications : Any of the Certification mentioned below (or equivalent) : - Cisco CCNP Enterprise - Juniper JNCIP-ENT, JNCIP-MistAI - Aruba ACP, ACSP