Network Engineer

SAI MAHESH GANGINENI Address: *** Hinman St, West Haven, CT, 06516, USA

Phone: 203-***-**** Email: ********************@*****.***

SUMMARY:

Skilled Network Engineer with 4+ years of experience in configuring and maintaining enterprise network infrastructures. Proficient in Cisco routing and switching, VLANs, VPNs, SD-WAN (Viptela), and firewall management using Fortinet and Palo Alto solutions. Experienced in network monitoring, troubleshooting, and performance optimization using tools such as SCCM and Wireshark. Strong ability to ensure high availability, reliability, and scalability of network systems across multiple environments.

TECHNICAL SKILLS:

Networking Tools: Wireshark, SolarWinds, NetFlow Analyzer, Cisco Packet Tracer, PRTG

Platforms & Hardware: Cisco IOS (ISR, Catalyst, Nexus), Palo Alto, Fortinet, Cisco ASA, Meraki, Aruba

Protocols & Services: TCP/IP, DHCP, DNS, NAT, ACLs, SNMP, STP, OSPF, EIGRP, BGP, RIP

Network Management: SCCM, Infoblox (DNS/DHCP/IPAM), F5 LTM/GTM, ITIL Change Management

Operating Systems: Windows Server 2016/2022, Linux, Unix

Cloud & Virtualization: AWS VPC, Direct Connect (basic exposure), Virtual LAN/SD-WAN environments

CERTIFICATIONS:

CCNP – Enterprise Core (ENCOR 350-401) – Cisco

CCNA – Cisco Certified Network Associate – CiscoACI

Google Cybersecurity Professional Certificate – Google / Coursera

ITIL Foundation Certification – IT Service Management

WORK EXPERIENCE

Network Engineer, CVS Health May 2023 - Present

Configure, manage, and troubleshoot Cisco routers (ISR/ASR series) and Nexus switches (2K–9K), implementing VLANs, STP, trunking, and EtherChannel to ensure reliable LAN/WAN connectivity.

Deploy and maintain routing protocols (BGP, OSPF, EIGRP), static routing, and route summarization to optimize enterprise network performance.

Configure and support VPN solutions including IPSec, SSL, and site-to-site VPNs, ensuring secure connectivity between corporate offices and remote users.

Implement and manage SD-WAN (Cisco Viptela) for multi-site connectivity, centralized policy control, and dynamic path optimization.

Manage firewall policies and security rules on Palo Alto, FortiGate, and Cisco ASA/Firepower platforms for perimeter and internal segmentation.

Collaborate with security and systems teams to integrate DNS/DHCP/IPAM (Infoblox), load balancers (F5 LTM/GTM), and cloud connectivity (AWS VPC, Direct Connect) into enterprise networks.

Document network topologies, configurations, and troubleshooting procedures, ensuring high availability, redundancy, and scalability across all environments.

Developed and maintained Python scripts for network automation tasks, including device provisioning, configuration backups, and reporting.

Automated network workflows using Cisco ACI and Python APIs for policy deployment and tenant configuration.

Implemented automated monitoring and alerting for network devices using Python scripts and integration with SolarWinds/NetFlow Analyzer

Monitor and analyze network performance using Wireshark, SolarWinds, NetFlow Analyzer, and SNMP tools, identifying and resolving bottlenecks and latency issues.

Support and optimize wireless infrastructure using Cisco Meraki and Aruba Access Points, ensuring seamless connectivity across branch sites.

Perform device configuration, OS upgrades, and backups using SCCM and version control processes; maintain compliance with ITIL change management standards.

Network Implementation Engineer, Wipro Ltd May 2021 – January 2023

Assisted in configuring and deploying Cisco routers, switches, VLANs, trunk links, and SD-WAN (Viptela) for branch and client networks.

Supported LAN/WAN installation, cabling, and IP addressing, ensuring seamless connectivity across environments.

Monitored and troubleshot network performance using Wireshark, SolarWinds, and basic CLI diagnostics.

Assisted in network automation projects using Python and Ansible to streamline VLAN, ACL, and device configuration tasks.

Supported ACI policy deployment for multi-tenant environments to simplify network management and reduce manual errors.

Helped implement VPN connections and assisted in firewall policy updates on Fortinet and Palo Alto devices.

Participated in network upgrades, patching, and configuration changes following ITIL standards.

Supported deployment and maintenance of wireless access points (Cisco Meraki, Aruba) and documented configuration changes.

Collaborated with senior engineers to maintain network security, compliance, and performance stability.

L1- Network Engineer (intern), Wipro Ltd December 2020 – May 2021

Assisted in configuring and deploying Cisco routers, switches, VLANs, and IP addressing for enterprise LAN/WAN setups.

Monitored and troubleshot network connectivity, latency, and device performance using tools like Wireshark and SolarWinds.

Supported VPN setup, hardware installation, and cabling during new site implementations and maintenance activities.

Documented network configurations, topology changes, and incident reports to support efficient troubleshooting and audits.

Gained exposure to Python scripting for automating network monitoring and reporting tasks.

Assisted in learning Cisco ACI concepts and automating basic network configurations under senior engineer guidance.

EDUCATION:

University Of New Haven (Msc in Networks and Security) January 2023 - December 2024

GMR Institute of Technology (BTech) August 2018 - May 2021

Usha Rama College of Engineering (Diploma) June 2015 - May 2018

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