CCNA Network Engineer - Enterprise LAN/WAN

Roshini Korada Network Engineer

Richardson, Texas (Open to Relocate) +1-475-***-**** ***************@*****.*** LinkedIn SUMMARY

● Enterprise Network Engineer with 3+ years of experience designing, implementing, and supporting enterprise LAN/WAN, wireless, VPN, and firewall infrastructures across multi-site environments. Strong expertise in TCP/IP, BGP, OSPF, VLANs, NAT, DNS, DHCP, SNMP, QoS, and Layer 2/Layer 3 switching using Cisco and multi-vendor networking platforms.

● Proven experience automating network operations using Python, Bash, Ansible, Netmiko, NAPALM, YAML, and REST APIs, reducing manual configuration effort by 35% and improving deployment consistency. Skilled in network monitoring, troubleshooting, and performance optimization using SolarWinds, PRTG, Wireshark, and packet analysis tools to maintain high availability and minimize downtime.

● Hands-on experience supporting AWS VPCs, Azure VNets, VMware vSphere, Cisco UCS, and Hyper-V environments, enabling secure hybrid-cloud connectivity and scalable network architectures. Adept at incident management, root cause analysis, capacity planning, infrastructure documentation, and SLA-driven support, consistently delivering 99.9% network availability.

● Strong collaboration with cross-functional teams, vendors, and stakeholders to ensure reliable, secure, and efficient enterprise network operations. TECHNICAL SKILLS

Networking Protocols & Core Technologies: TCP/IP, IPv4/IPv6, Subnetting, BGP, OSPF, EIGRP, RIP, Static & Dynamic Routing, Route Redistribution; VLAN, STP, HSRP, VRRP, Port Channeling (EtherChannel); NAT, PAT, ACLs, DHCP, DNS, SNMP, QoS; MPLS, SD-WAN Routing, Switching & Network Design: Cisco IOS, IOS-XE, NX-OS; Layer 2 / Layer 3 Switching, Trunking, Route Summarization, Network Segmentation, High Availability (HA); traffic engineering, latency reduction, packet loss mitigation Network Security & Firewalls: Cisco ASA, Palo Alto NGFW, Fortinet; IPsec VPN, Site-to-Site VPN, Remote Access VPN; IDS/IPS, Role-Based Access Control (RBAC), Firewall policy management; STP troubleshooting, access control enforcement Cloud & Hybrid Networking: AWS (VPC, Subnets, Route Tables, Internet Gateway, Transit Gateway, Site-to-Site VPN); Azure (VNets, ExpressRoute, Network Security Groups, User-Defined Routes, VPN Gateway); Hybrid & multi-cloud connectivity, secure inter-networking. Monitoring, Operations & Troubleshooting: Wireshark, SolarWinds, PRTG, Cisco Prime; SNMP alerting, Syslog analysis, NetFlow; root cause analysis, MTTR reduction, on-call support; latency, packet loss, jitter analysis; Power BI, network performance dashboards Operating Systems & Infrastructure: Linux (Ubuntu, RHEL, Kali); Windows Server 2016/2019; VMware vSphere, ESXi, Hyper-V; Cisco UCS, virtual switch

(vSwitch) configuration

Programming, Scripting & Automation: Python, C, C++, Bash, SQL, YAML; network automation using Python (Netmiko, NAPALM) and Ansible

(Playbooks, configuration management); REST APIs, Git, Infrastructure as Code (IaC), and CI/CD concepts. Network Management & ITSM: SolarWinds NPM, Cisco Prime, ServiceNow, Jira, Incident Management, Change Management, Problem Management, Root Cause Analysis (RCA), SLA Management, Ticketing Systems. Certifications: Cisco Certified Network Associate (CCNA) - LINK EXPERIENCE

Network Engineer Cisco Systems USA (contract)Jul 2025 – Present

• Improved network availability by 30%, measured through reduced service disruptions and increased uptime, by deploying and supporting enterprise LAN/WAN, SD-WAN, VPN, wireless, and cloud networking infrastructure across multiple locations using Cisco routers, switches, and firewalls.

• Reduced MTTR by 50%, measured through incident management KPIs, by troubleshooting Layer 2/Layer 3 network issues involving BGP, OSPF, EIGRP, VLANs, MPLS, DNS, DHCP, VPNs, and enterprise connectivity services.

• Increased deployment efficiency by 40%, measured through project delivery timelines, by executing network refresh projects, switch migrations, rack-and-stack installations, hardware upgrades, and infrastructure rollouts across branch and datacenter environments.

• Improved network security posture by 35%, measured through audit and compliance outcomes, by administering Palo Alto, Fortinet, and Cisco ASA firewalls, implementing VPN solutions, IDS/IPS controls, network segmentation, and role-based access policies.

• Improved enterprise wireless performance by 30%, measured through reduced user connectivity incidents, by deploying and supporting Cisco WLC, Meraki Wireless, Aruba Controllers, and enterprise Wi-Fi infrastructure.

• Increased operational visibility by 50%, measured through faster fault detection and resolution, by leveraging SolarWinds, PRTG, Wireshark, SNMP, NetFlow, Syslog, Grafana, and AWS CloudWatch for proactive monitoring and performance analysis.

• Reduced manual operational effort by 60%, measured through engineering productivity metrics, by automating configuration management, compliance validation, monitoring, and reporting processes using Python, Ansible, Netmiko, NAPALM and REST APIs.

• Improved vendor response effectiveness by 25%, measured through reduced service restoration times, by coordinating with ISPs, cloud providers, hardware vendors, and cross-functional teams during critical incidents and infrastructure deployments. Junior Network Engineer Hexaware Technologies India Jan 2022 – Jul 2024

• Improved network reliability by 30%, measured through reduced recurring outages, by supporting Cisco routing, switching, firewall, Meraki SD-WAN, wireless, and WAN infrastructure across enterprise and branch-office environments.

• Reduced incident resolution times by 35%, measured through operational support metrics, by troubleshooting BGP, OSPF, EIGRP, MPLS, VLAN, DNS, DHCP, VPN, and connectivity issues impacting critical business services.

• Improved VoIP and business application performance by 25%, measured through latency and user experience metrics, by implementing QoS policies, WAN optimization techniques, and traffic prioritization strategies.

• Increased deployment success rates by 30%, measured through project completion metrics, by supporting router, switch, firewall, and wireless access point installations, network migrations, and post-deployment validation activities.

• Reduced configuration drift by 70%, measured through compliance and audit reviews, by developing network automation solutions using Python, Ansible, NAPALM, and Git for device provisioning, backups, and configuration standardization.

• Improved monitoring effectiveness by 40%, measured through earlier fault detection and alerting accuracy, by implementing SNMP monitoring, Syslog analysis, NetFlow visibility, SolarWinds dashboards, and proactive network monitoring practices.

• Increased deployment velocity by 20% and release frequency by 15%, measured through DevOps delivery metrics, by supporting CI/CD-driven infrastructure deployments using AWS CodePipeline, CodeBuild, CloudFormation, and IAC methodologies.

• Improved infrastructure documentation accuracy by 100%, measured through audit readiness and operational consistency, by maintaining network diagrams, SOPs, implementation plans, asset inventories, and troubleshooting guides supporting enterprise network operations. PROJECTS

Multi-Site Network Configuration & Monitoring System Python 3, Netmiko, NAPALM, Ansible, Jinja2, GNS3, EVE-NG, Cisco IOS/IOS-XE, BGP, OSPF, EIGRP, Grafana, InfluxDB

• Designed and simulated a multi-site enterprise network using BGP, OSPF, and EIGRP across 3 locations in GNS3/EVE-NG, improving network resiliency and reducing single points of failure by 40%.

• Developed a Python-based automation framework using Netmiko and NAPALM for configuration deployment, validation, and rollback, reducing manual configuration time by 70% and improving deployment accuracy.

• Automated configuration compliance checks and network health validation using Python, Ansible, and NAPALM, reducing manual audit effort by 60% and improving configuration consistency across routers and switches. EDUCATION

Master of Science in Computer Science Sacred Heart University, Fairfield, CT Aug 2024 – Dec 2025 Bachelor of Electrical and Electronics LIET, Andhra Pradesh, India Jul 2019 – Mar 2023

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