David Z. Email & Phone Number

San Francisco Bay Area

As an experienced Cloud Infrastructure Architect, I specialize in designing, building, and optimizing scalable, secure, and cost-effective cloud solutions across public cloud platforms. My passion lies in leveraging cloud-native technologies, including network automation, game publishing networks and streamline infrastructure operations and enhance performance.

San Francisco Bay Area

Provide daily support of Company’s LAN, WAN, Wireless and E-Commerce Network Infrastructures. This includes: monitoring, administering and troubleshooting to maximize network availabilityDevelop and drive long-term networking strategy in the public cloud, and involve in designing and deploying a multitude network & security components of AWS stack, such as VPC, Route53, VPN, Direct Connect, ALB&NLB, Security Group, Transit gateway, WAF, Shield and Guard​DutyOrchestrate management of network devices including Fortigate firewall, Cisco ASA firewall, F5 LTM, Cisco Nexus switches and ASR routers, Meraki security applianceAutomate networking related tasks and build self-service tools with experience using Python, Terraform CI/CD tools such as Git, BitbucketMonitor network performance, ensures capacity planning is performed, and is proactive in assessing and making recommendations for improvementContribute to team knowledge base by documenting procedures, network/system designs, implementation plans, or other technical support documentation

San Francisco Bay Area

Develop and maintain network, server, storage systems, and related software and services for GAP ecommerce networkCoordinate and manage SDN networking infrastructure equipment for new store and locations, including Meraki cloud based Wifi & Switch and Vipetla intelligent wan solutionDesign and coordinate the implementation of Next-Gen Campus to include design of Wavelength Wan Services, Cisco controller based wifi and Riverbed wan optimizationAccomplish proof-of-concept lab testing for emerging service offerings and technologiesAnalyzes bandwidth utilization to determine Core Data Network InfrastructureTake responsibility for the analysis, definition, and continued development of the Campus Wireless ArchitectureProvide Tier III support to Operations Staff for all escalated network/service issuesCoach and mentor other IT team members

Designed and implemented enterprise network infrastructure with 6 domestic branches and 4 oversea branches Planned and implemented router redundant cluster with HSRP/VRRPConfigured and maintained LAN including, VLAN, Spanning tree, VTP, Ether Channel, Port MirroringDesigned and implemented company network access authentication system with RADIUS and L2 port securityConfigured and managed firewalls including Cisco PIX/ASA, Juniper and FortigatePlanned and implemented Easy VPN, SSL VPN, PPTP VPN with LDAP and RADIUSImplemented and maintained international MPLS network with BGP and QoSMigrated oversea WAN circuit to new service provider, designed full mesh international Site to Site VPN Monitored and analyzed network performance and traffic by Nagios, Cacti, Netflow and WebsenseManaged and support Servers including Web, DNS, DHCP, FTP and Mail serverPlanned and maintained enterprise server cluster backup with Symantec Backup Exec 12.5 and 2012 Conducted and deployed VMware/vSphere Infrastructure with ESXi, vCenter and Converter StandaloneImplemented and supported KVM virtualization technologies and storage area networksWritten Perl script to automation network device file backup, configuration update and status monitor Performed step-by-step procedural documentation and Visio network topology diagrams Provide technical support for domestic branch and oversea branch on a 24 x 7 rotation schedule

Fremont

Configured and installed Cisco Routers in multiprotocol networksManaged Cisco switches and maintained LAN networkPlanned and implemented Site to Site VPN from US to IndiaImplemented and maintained F5 BIG-IP LTM 3600 to implement web server load balanceManaged the Analysis network performance and efficiency by Nagios and CactiBackup and restored configuration and IOS image files for the PIX, Cisco routers, and Cisco switches.Undertook troubleshooting of network connectivity problems and day-to-day operations

Fremont

Composed test cases, performed Black/White Box testing, and created bug reports using Bugzilla for mobile banking apps for iPhone, Android and mobile browserTroubleshoot systems, verified fixed bugs, and completed regression testing and system integration testing for mobile banking apps with IBM RFT and SeleniumProvided customer support to solve various account issues/defects and worked closely with customers for implementation of new features

Fremont

Built and administrated campus LAN (100 PCs over 2 buildings), which includes integrated design, optimization network performance, setting up user groups and security firewallsCreated virtual network lab using GNS3/Dynamips software including 4 ASA firewalls,16 routers and switchesCompiled over 20 network lab guidesProvided hardware and software technical assistance to students and staff

Fremont

Diagnosed and rectified faults to component level on 4 series server products in Solaris environment, which includes WASP, Lynx_1U, Lynx_2U, Lynx_Hyde Upgraded and installed firmware and operating system for 20 server products dailyRecommended changes in test methods or equipment to test engineer team for efficiency Completed failure analysis report of test cases weeklyParticipated in test procedure documentation for ISO certifications

Bachelor Of Science (Bs), Electrical And Electronics Engineering

Master'S Degree, Computer Science