Amanulla Kalluru

Zscaler Experience (Cloud Security & Zero Trust)

• Configured routers, switches and other networking equipment.
• Monitored network performance and identified potential areas of improvement.
• Performed troubleshooting to diagnose and resolve network issues.
• Implemented system upgrades including firmware revisions, patches.
• Provided technical support for users experiencing problems connecting to the network or accessing resources on it.
• Deployed firewalls to protect corporate networks from unauthorized access attempts.
• Performed periodic backups of critical network devices configurations.
• Maintained communication with colleagues to promote knowledge sharing and project collaboration.

Meraki Experience:

• Deployed and managed Cisco Meraki switches, firewalls, and wireless access points via the Meraki Dashboard for centralized cloud-based administration.
• Configured site-to-site VPNs and SD-WAN policies using Meraki MX appliances to ensure secure connectivity across branch offices.
• Implemented traffic shaping and QoS policies to optimize bandwidth usage for critical applications.
• Monitored network health and performance through Meraki’s cloud analytics, proactively resolving issues to minimize downtime.
• Led migration projects from traditional Cisco IOS devices to Meraki cloud-managed solutions, improving scalability and reducing operational overhead.
• Configured and administered Zscaler Internet Access (ZIA) to enforce secure web traffic filtering and SSL inspection.
• Integrated Zscaler Private Access (ZPA) for secure remote access to internal applications without traditional VPNs.
• Developed and enforced security policies for URL filtering, sandboxing, and data loss prevention (DLP).
• Collaborated with security teams to implement Zero Trust architecture using Zscaler’s cloud-native solutions.
• Monitored logs and analytics via Zscaler dashboards to identify threats and optimize security posture.
• Conducted user training and documentation on secure access practices leveraging Zscaler solutions.

Palo Alto Networks Experience (Next-Gen Firewalls & Security)

• Configured and managed Palo Alto Next-Generation Firewalls (NGFWs) for perimeter and internal network security.
• Implemented security policies, NAT rules, and application-based controls to enforce granular access restrictions.
• Deployed and optimized GlobalProtect VPN for secure remote workforce connectivity.
• Integrated Palo Alto firewalls with Panorama for centralized management, policy deployment, and log analysis across multiple sites.
• Configured threat prevention features including IPS/IDS, URL filtering, anti-malware, and sandboxing to block advanced threats.
• Monitored traffic and security events using Palo Alto dashboards and log collectors, proactively mitigating risks.
• Collaborated with SOC teams to analyze incidents and fine-tune firewall policies for compliance and performance.
• Led migration projects from legacy firewalls to Palo Alto NGFWs, improving visibility and reducing false positives.
• Conducted user training and documentation

• Provided technical support for users experiencing problems connecting the network/accessing resources on it.
• Deployed firewalls to protect corporate networks from unauthorized access attempts.
• Performed periodic backups of critical network devices configurations.

• Configured and maintained Cisco routers and switches to ensure optimal performance, availability, and scalability of enterprise networks.
• Implemented VLANs, trunking, and inter-VLAN routing to segment traffic and improve security and efficiency.
• Managed routing protocols (OSPF, EIGRP, BGP) for dynamic path selection and high availability across multi-site environments.
• Monitored and troubleshot Layer 2/Layer 3 issues using tools like Wireshark, SNMP, and Cisco IOS commands.
• Performed regular firmware and IOS upgrades on Cisco devices to maintain compliance and security standards.
• Configured ACLs, NAT, and port security to safeguard network infrastructure against unauthorized access.
• Optimized network performance by analyzing traffic patterns and implementing QoS policies for critical applications.
• Led network documentation and knowledge transfer sessions as Subject Matter Expert (SME) for Cisco switching and routing.
• Collaborated with cross-functional teams to design and deploy scalable network solutions supporting business growth.
• Ensured business continuity by implementing redundancy (HSRP, VRRP) and disaster recovery strategies