Shahid A.
Senior DDI Network Engineer & Network Security Engineer at Synopsys
- Role
- Sr Network Security Engineer at Synopsys Inc
- Location
- San Francisco, CA, US
- LinkedIn followers
- 500 followers
About Shahid A.
PROFESSIONAL EXPERIENCE Synopsys, Mountain View, California Sr. DDI Network Engineer & Network Security Engineer | June 2022. Present BlueCat & DNS Experience * 9 years of Experience and having multiple Certifications on Cisco (CCNA & CCNP) in designing, deploying and troubleshooting Network & Security infrastructure on routers, switches (L2/L3), Firewalls of various vendor equipment.Configured, implemented, and troubleshot VLANs, VTP, STP, trunking, EtherChannel, and L2/L3 connectivity across large enterprise switching environments.Provided advanced troubleshooting for customer-reported and infrastructure issues, ensuring fast recovery and high service availability.Supported DNS, DHCP, and IPAM operations using BlueCat BAM-aligned workflows, including IP block management, DNS lifecycle updates, DHCP scope adjustments, and IP space planning.Diagnosed and resolved complex DNS failures such as stale or incorrect records, recursive lookup issues, caching inconsistencies, and BlueCat zone propagation delays.Assisted in DNS infrastructure optimization and resiliency improvements using BlueCat Edge DNS concepts for branch offices and hybrid cloud environments.Participated in DNS cutovers, zone restructures, namespace cleanup, and enterprise-wide standardization initiatives for DDI modernization.Collaborated with cross-functional teams to implement DNS changes following formal BAM governance, approval workflows, and structured change-control processes.Provided operational support for distributed DNS and DHCP environments aligned with BlueCat server deployment standards and enterprise best practices.Developed Python automation for DDI tasks, BlueCat API integrations, DNS reporting, IP allocation workflows, and recurring operational processes.Troubleshot protocol-based security policies on Palo Alto firewalls, adjusting rules and application traffic flows based on business and security requirements.Designed and managed network access policies using Cisco ISE, enforcing role, device, and location-based access segmentation.Configured and extended VLANs across datacenter environments to ensure connectivity between multi-tier applications and isolated network segments.Utilized TCPWave REST APIs for automation and DDI integration tasks.Designed and supported F5 Big-IP LTM/GTM solutions for application migration and load balancing from Cisco CSS infrastructures.Worked extensively on Cisco Nexus 9K/7K/5K and FEX platforms, deploying VPC, VDC, and FabricPath for high availability and performance.participated in on-call rotations.
Experience
Sr Network Security Engineer
Jun 2022 — Present · Mountain View, CA, US
Worked in Software updates for Cisco, HPE, PAN – Router/Switch/Firewall code updates for software vulnerabilities and bug fixes. Experience in design and implementation of Palo Alto security appliances and managed Palo Alto firewall series PA 800, and Experience working with Cisco IOS/IOS – XR/NS-OS, Juniper JUNOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, EIGRP, RIP, BGP v4. Creating multiple rules and policies on Palo Alto for allowing access for users & application servers. Involved in Infrastructure Network and Security Viptela SD WAN, Routing and Switching. Experience on SD-WAN (Viptela), SD WAN optimization technologies for efficient delivery of the application data across LAN and WAN. Involved in Designing ACI fabric to ensure each tenant is secured and has separation from other tenants. Interacted with the team to Enable Cloud Trail across all geographic regions and AWS services to prevent activity monitoring gaps. Involved in Designing F5 solutions/support for migration applications and websites from Cisco CSS Load Balancers to the F5 BigIP Load Balancers. Worked on Nexus platform 9k, 7010, 5K series (5548, 5020 and 5010) and FEX (2248, and 2232) and deployed VPC, VDC and Fabric Path. Interacted with the team to design and implement Cisco ACI in datacenters create a strategy that allows use of containers.
Education
City university of New York
Bachelor's degree, Economics
2008
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