Bhuvan Sai A
Summary
Senior Network Security Engineer with 8+ years of experience in designing and securing enterprise network infrastructures across on-prem, cloud, and hybrid environments. Expertise in firewall management, web security, cloud security, and advanced routing protocols. Proven ability to deploy security appliances, implement VPN solutions, and execute threat mitigation strategies. Skilled in automation and configuration management using Python and Ansible to enhance operational efficiency.
Overview
8
8
years of professional experience
Work History
Senior Network Security Engineer
Altice USA
Dallas, TX
05.2024 - Current
- Provided strategic oversight and technical leadership for backbone network design using BGP, OSPF, ISIS, and MPLS protocols.
- Directed lifecycle management of customer premises equipment, including remote diagnostics and automated provisioning via TR-069.
- Led planning and implementation of scalable data center and cloud architectures across AWS, Azure, and private clouds.
- Engineered edge infrastructure for content delivery, enhancing latency and efficiency for residential and business customers.
- Championed delivery of IP-based voice, video, and internet services, ensuring excellence with DOCSIS, SIP, and QoS principles.
- Developed DDoS mitigation strategies in coordination with security teams to protect core and customer-facing services.
- Oversaw wireless network strategy for public WiFi and enterprise solutions, focusing on high-density performance.
- Drove network automation initiatives using Ansible and Python to enhance operational efficiency and minimize errors.
Senior Network Security Engineer
Occidental Petroleum
Houston, TX
07.2023 - 05.2024
- Executed migration from DMVPN to Cisco Viptela SDWAN using V-SMART controllers and V-BOND edge routers.
- Designed and deployed Cisco Firepower clusters to strengthen core network infrastructure.
- Configured and maintained Cisco ASA and Firepower firewalls, ensuring comprehensive security protocols.
- Managed wireless LAN/WAN implementations with 802.11 standards and mesh technologies.
- Completed network upgrades from DOCSIS 3.0 to DOCSIS 3.1, boosting speed and efficiency.
- Led troubleshooting for DOCSIS-related issues to uphold optimal operational performance.
- Developed vManage templates for streamlined SD-WAN provisioning and configuration management.
- Integrated Fortinet Security Fabric components to improve threat detection and response.
Senior Network Engineer
Farm Credit Financial Partners Inc
Agawam, MA
02.2021 - 06.2023
- Configured DMZ environment with Palo Alto firewalls and F5 load balancers for secure external access.
- Migrated services from local cloud to hybrid cloud architecture using AWS and Azure.
- Collaborated with cross-functional teams to implement HPE Aruba networks, enhancing operational efficiency.
- Deployed SSP appliances across diverse network environments, ensuring integration with security protocols.
- Managed Aruba ClearPass Policy Manager for network access control and compliance enforcement.
- Executed load balancing and performance tuning in high-density wireless environments using 802.11k.
- Migrated from DM-VPN and MPLS to SD-WAN solutions, optimizing network performance.
- Implemented SSL interception and decryption policies on Blue Coat Proxy Servers for comprehensive threat management.
Senior Network Security Engineer
Stanford Health Care
Newark, CA
08.2019 - 01.2021
- Configured and maintained IPSEC and SSL VPNs on Palo Alto firewalls.
- Successfully installed PA-5000 series firewalls in data center as perimeter defenses.
- Built Terraform modules for cloud networking products per product team requirements.
- Migrated ASA firewalls to Palo Alto next-gen firewalls using migration tools.
- Migrated all IPSEC tunnels, ACLs, NAT rules, and policies efficiently.
- Troubleshot Linux and Unix servers for optimized application delivery.
- Installed Docker containers along with Cisco and HP servers.
- Utilized Cisco DNA Center for Assurance, DNA Spaces, and Prime Infrastructure.
Network Engineer
Northrop Grumman
, India
07.2017 - 07.2019
- Configured and managed DHCP scopes, IP reservations, DNS entries, and security protocols.
- Engineered security measures for perimeter firewalls, IPS, DNS, DMZ, and Internet security.
- Migrated Nexus 7Ks and Nexus 5Ks to ACI Fabric in brownfield data center.
- Designed and implemented routing configurations using BGP among multiple Leaf and spine switches.
- Executed migration from traditional data center architecture to Spine-Leaf model.
- Conducted thorough analysis of emerging security threats and recommended mitigation strategies.
- Collaborated with vendors to implement 802.11ax upgrades, enhancing wireless network efficiency.
- Managed configuration and administration of F5 load balancers for Layer 4 and Layer 7 traffic.
Network Support Engineer
Gigantic Network Solutions
, India
11.2016 - 06.2017
- Collaborated with Help Desk for circuit troubleshooting to support on-site technical personnel.
- Configured and troubleshot multi-customer network environments to ensure optimal performance.
- Monitored network systems for alarms, providing timely notifications and acknowledgments.
- Implemented and modified data networks for various project requirements.
- Resolved complex networking issues across layers 1, 2, and 3 using MPLS, BGP, EIGRP, OSPF protocols.
- Supported networks with over 2000 Cisco devices, ensuring reliability and efficiency.
- Documented symptoms of network issues and escalations for effective tracking and resolution.
- Managed service request tickets throughout troubleshooting, maintenance, upgrades, and technical support phases.
Education
Bachelor of Science - Computer Science
University of Central Missouri
Warrensburg, MO05-2022
Bachelor of Science - Information Technology
Vardhaman College of Engineering
Hyderabad, India04-2017
Skills
Firewall configuration and management
- Cloud architecture design
- Network automation and monitoring
- VPN deployment and configuration
- DDoS mitigation strategies
- Wireless networking and security
- Network troubleshooting techniques
- Documentation management practices
- Incident response planning
- Cross-functional collaboration skills
- Technical leadership abilities
- Risk assessment methodologies
- Mobile device security protocols
- Threat analysis and mitigation
- Network infrastructure design
- IP addressing and subnetting expertise
- SD-WAN configuration techniques
- Routing protocol knowledge
- Load balancing strategies
- Intrusion prevention systems
Websites
Timeline
Senior Network Security Engineer
Altice USA
05.2024 - Current
Senior Network Security Engineer
Occidental Petroleum
07.2023 - 05.2024
Senior Network Engineer
Farm Credit Financial Partners Inc
02.2021 - 06.2023
Senior Network Security Engineer
Stanford Health Care
08.2019 - 01.2021
Network Engineer
Northrop Grumman
07.2017 - 07.2019
Network Support Engineer
Gigantic Network Solutions
11.2016 - 06.2017
Bachelor of Science - Computer Science
University of Central Missouri
Bachelor of Science - Information Technology
Vardhaman College of Engineering
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