Sai Sidhartha Sadula

About Sai Sidhartha Sadula

Highly skilled Senior Network Engineer with 7+ years of experience in designing, deploying, and securing enterprise and cloud network infrastructures across AWS, Azure, and on-prem data centers. Proven expertise in Palo Alto, Fortinet, Cisco, Juniper, and F5 platforms with advanced knowledge of firewall policy enforcement, segmentation, SD-WAN, VPN, and high availability architectures. Strong background implementing cloud network automation, CI/CD pipelines, IaC (Terraform, Ansible) and zero trust access models using Zscaler and identity-based controls.Hands-on experience delivering scalable solutions for multi-tenant data centers, EVPN/VXLAN overlays, Cisco ACI, and BGP/OSPF routing to support resilient connectivity. Adept in deep packet inspection, SSL/TLS decryption, API security, and Splunk SIEM to enhance threat visibility and reduce attack surface. A trusted collaborator working with cross-functional teams to optimize performance, reduce downtime, and strengthen enterprise security posture across global environments.

Experience

1. Senior Network Engineer

   OneMain Financial

   Feb 2025 — Present · US

   Implemented zone-based segmentation and dynamic user policies on Palo Alto PA-5280/3420.• Configured app-based policies via Palo Alto Strata Cloud to segment SaaS, IaaS and on-prem workloads, reducing lateral movement.• Tuned DPI and SSL/TLS decryption on Palo Alto for better encrypted-traffic malware detection.• Assisted HA failover setup on PA-5450/3260 and log forwarding to Splunk for centralized monitoring.• Built Splunk correlation searches and real-time alerts to baseline traffic and detect early threats.• Deployed API Security & Governance on Akamai App & API Protector securing REST/SOAP APIs.• Supported branch connectivity using Prisma SD-WAN Cloud Portal with dynamic path optimization.• Identified remote-access threat gaps and extended Prisma SD-WAN protections via Zscaler cloud sandbox.• Created Terraform templates to standardize Azure network/firewall policy deployments.• Assisted Azure Bastion setup for secure remote admin access with least-privilege controls.• Configured BGP peer-groups on Cisco ASR-9909/9006 to improve redundancy and reduce route flaps.• Supported VXLAN EVPN overlays on Cisco Nexus 9500/5548 for scalable multi-tenant DC fabric.• Managed multi-pod Cisco ACI setups with leaf switches enabling HA and app mobility across DCs.• Assisted Cisco ISE TACACS+ deployment to centralize device access control with role-based permissions.• Worked with teams managing Meraki MR for remote-site VPN and centralized traffic analytics.• Performed VPN setups using AD groups to enforce encryption and access based on user roles.• Experienced with Infoblox DDI automation for DNS/DHCP provisioning.• Performed SSL bridging and multi-tenant routing with advanced iRules on F5 BIG-IP iSeries Built Ansible playbooks to deploy network/security policies across multi-vendor environments.• Integrated Ansible with version control and CI/CD pipelines for repeatable provisioning and rollback.

Education

• Vidya Jyothi Institute Of Technology

  Bachelor's Degree, Information Technology

• Indiana Institute of Technology

  Master's Degree, Engineering/Industrial Management