David Becerra Email & Phone Number

San Jose, California, Us

Took a planned sabbatical to care for my daughter. During this time, I enjoyed the fun challenges of being a first time parent and continued to further develop my network automation understanding and capabilities.

San Diego, Ca, Us

- Technical lead responsible for the complete redesigned and reimplementation of Cisco ISE, successful deployment resulted in over $310K project cost savings- Established remote VPN tunnel capabilities for classified and non-classified networks to secure business continuity for 10,000 + users during the pandemic in within 3-days- Successfully designed and deployed manufacturing segmentation using Cisco TrustSec- Increased network visibility and security by enabling the following capabilities: o Configuring Cisco ISE policies with profiling attributes o Configuring network security with dot1x implementation o Integrating Cisco ISE with Splunk, QRadar, Firepower, and Palo Altos o Utilizing Cisco ISE posturing to detect company owned assets o Integrated Nessus vulnerability scanner with Cisco ISE to create policy network access enforcement based on CVSS scores- Assessed technical capabilities, provided proof of concept evaluation, and positioned Cisco SD-WAN- Designed, executed, and trained team members on Netflow deployment with LiveNX and Scrutinizer, global QoS rollout for critical business applications, and AWS DX connection implementation- Deployed Cisco Firepower with remote VPN and Firepower-ISE integration in testing environment to allow team members to become more familiar with quarantine automation- Mentored team members and resolved long term tickets team members had open with Cisco TAC which allowed team members to continue to move forward on hindered projects

San Diego, Ca, Us

- Assessed technical capabilities and demonstrate proof of concept evaluation of Cisco ISE, Firepower, Fire Threat Defense, and TrustSec for network segmentation to protect critical valued manufacturing assets- Global implementation of QoS for business-critical applications on routers, Nexus, Catalyst switches, and wireless devices to reduce traffic congestion of applications critical to business revenue- Configured BGP remote triggered black hole filtering to drop malicious prefixes globally- Designed and implemented Amazon Direct Connect with backup failover for redundancy- Configured and troubleshoot Multicast routing for multicast applications (direct TV, MirrorOp, Microsoft System Center Configuration Manager)

San Diego, Ca, Us

- Mitigated traffic disruptions by configuring High Availability for Amazon CSRs 1000v in different availability zones- Designed and implemented IPS/IDS for Cisco routers- Increased traffic visibility of network capacity and utilization by implementing Netflow- Conducted configurations optimization and troubleshooting for the following: DMVPN tunnels, VLAN, routes, QoS traffic control/prioritization, Site-to-Site VPN, Netflow, Spanning-tree,RA-VPN, and AWS Direct Connect- Worked with upstream providers to resolve peering circuit outages and routing issues- Configured and maintained IPSec on Palo Alto/ Cisco ASA with business partners

- Provided 2nd level support and troubleshooting for all network activities and challenges- Mitigate DDoS with Radware, Arbor Peakflow, QoS policing, and collaboration with ISP upstream provider- Enabled RANCID backups to all network devices in data centers to mitigate impact of hardware failures- Firewall migration to Palo Alto’s firewall from K9 firewalls- Configured and implemented ACS to ISE migration- Monitored and analyzed data via NetFlow for access lists, bandwidth spikes (outliers) and un-necessary protocols- Configured, modified and troubleshoot VPN tunnels, VLAN, Static routes, Access-Lists, Firewall port openings, Netflow, ISE, Arbor and Spanning-tree- Implemented multicast for re-imaging machines for gaming events- Configured and maintained AMS-IX BGP private peering

San Diego, Ca, Us

Cisco Certified Network Professional Routing And Switching Course

Cisco Certified Network Associate Routing And Switching Course