Network Engineer Sd-Wan

ARAVIND NETWORK ENGINEER

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Professional Summary:

Highly skilled Network Engineer with 5 years of hands-on experience in designing, implementing, and maintaining secure and high-performance network infrastructures across healthcare, insurance, and IT sectors. Proficient in managing advanced network technologies, including Cisco Viptela, Palo Alto, Juniper EX, Cisco ASA, and Fortinet FortiGate firewalls. Expertise in deploying SD-WAN solutions, automating network tasks with Python and Ansible, and ensuring compliance with industry standards such as HIPAA and PCI-DSS. Adept at troubleshooting complex Layer 2/Layer 3 issues, optimizing VPN connectivity, and integrating hybrid cloud environments using AWS VPC and Azure Virtual Networks. Proven ability to conduct root cause analysis (RCA), enhance network resilience, and maintain 99.9% uptime for mission-critical applications. Strong collaborator with cybersecurity and IT teams, ensuring seamless operations and continuous improvement of network security posture.

Key Skills & Tools:

Network Security: Cisco ASA, Palo Alto, Fortinet, Check Point Firewalls, IDS/IPS

Network Monitoring & Management: Solar Winds, PRTG, Nagios, Wireshark, Net Flow, Zabbix

Cloud & Virtualization: AWS VPC, Azure Virtual Network, VMware NSX, Cisco ACI

Routing & Switching: Cisco Catalyst/Nexus, Juniper EX/QFX Series, Aruba Switches

SDN/SD-WAN: Cisco SD-WAN (Viptela), VMware SD-WAN (Velocloud), Meraki SD-WAN

Automation & Scripting: Python, Ansible, Bash, REST APIs

Load Balancers & Proxies: F5 BIG-IP, Citrix ADC, HAProxy, Squid Proxy

Network Authentication: RADIUS, TACACS+, 802.1X

Compliance & Security Standards: HIPAA, PCI-DSS, ISO 27001

Professional Experience:

Cigna Healthcare, Bloomfield, CT

Network Engineer / Feb 2023 – present

Designed and implemented highly secure and redundant network infrastructure for hospitals and healthcare centres, ensuring HIPAA compliance.

Deployed and managed SD-WAN solutions using Cisco Viptela, enhancing telemedicine services and reducing WAN costs by 30%.

Configured and maintained Palo Alto firewalls and Cisco ASA for advanced threat protection and secure data exchange between EHR/EMR systems.

Automated routine network management tasks using Python and Ansible, increasing operational efficiency by 25%.

Monitored and analysed network performance using Solar Winds and Net Flow to ensure optimal connectivity for critical healthcare applications.

Integrated AWS VPC and Azure Virtual Network with on-premises environments for seamless hybrid cloud connectivity.

Configured VLANs and ACLs to protect patient data and maintain network segmentation.

Deployed and optimized F5 BIG-IP load balancers to manage high-volume traffic for healthcare portals.

Ensured high availability and network redundancy using HSRP and VRRP, guaranteeing 99.9% uptime for critical healthcare services.

Provided Level 3 support and conducted root cause analysis (RCA) for major incidents impacting healthcare operations.

Trurisk, Bangalore

Network engineer / July 2021 – July 2022

Configured and managed Cisco Catalyst switches and Juniper EX Series routers to support secure and scalable insurance network infrastructure.

Deployed and maintained Fortinet FortiGate firewalls to safeguard sensitive financial and customer data, ensuring PCI-DSS compliance.

Implemented SD-WAN using Meraki to enhance bandwidth utilization and optimize branch office connectivity.

Monitored and analysed network traffic using PRTG and Wireshark to proactively identify and mitigate performance issues.

Configured and maintained VPN tunnels for secure communication between branch offices and data centers.

Automated configuration management and network backups using Ansible and Python scripts.

Applied QoS policies to prioritize critical insurance application traffic and improve overall network performance.

Collaborated with cybersecurity teams to implement IDS/IPS solutions to prevent malicious activities.

Conducted network audits and ensured compliance with industry security standards.

Provided technical support and knowledge transfer to IT teams to ensure smooth network operations.

ZeroCodeHR, Hyderabad, Telangana

Jr.Network Engineer / May 2019 – Mar 2021

Deployed and configured Juniper EX switches and Cisco ASA firewalls to establish a robust and secure network environment.

Implemented network access control policies using 802.1X and TACACS+, ensuring authorized access and reducing potential security breaches.

Managed and fine-tuned VPN connections between branch offices and data centers, ensuring secure and seamless remote access.

Troubleshot Layer 2/Layer 3 connectivity problems, minimizing downtime and maintaining uninterrupted network performance.

Integrated Azure Virtual Network with on-premises infrastructure to enable secure and scalable hybrid cloud connectivity.

Configured VLANs and port security to prevent unauthorized access and ensure data confidentiality.

Participated in network capacity planning and performance assessments, ensuring system scalability and stability.

Conducted periodic disaster recovery tests to verify failover capabilities and maintain business continuity.

Provided comprehensive end-user support and resolved network-related service requests, enhancing overall user experience.

Ensured consistent network performance by monitoring, diagnosing, and resolving potential issues proactively.

Education:

Masters’ in computer informatics systems – New England collage - Henniker, NH, USA

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