William Gibbs Email & Phone Number

Dallas, Texas, Us

Integrated customer security devices into AT&T's Managment Network.Assisted with the design and implementation of customer security architecture and network management.Supported customer devices by securing network access and hardening security devices via software, applicationand threat content updates.Managed customer network security needs in a fast-paced and dynamic environment.Configured administrative access for users and created security management profiles for content filtering, urlfiltering, and database authentication.Adminstered customer certificate and key management by generating, importing, exporting, deploying andconfiguring certificates and creating SSL/TLS service profiles.Reviewed and deciphered security reports to include summary, threat, change, traffic and network monitor andsuggested corrective action to AT&T Cybersecurity clients.Configured customer Site-to-Site VPN deployments across multiple vendor devices and monitored changes in thevirtual environment.Implemented log managment and reviewed logs to ascertain customer change needs to secure resources.Configured secure remote access for customer's corporate internal users and external vendors.Migrated customer Site-to-Site IPsec and GRE tunnels from vendor platform to vendor platform for sizabledeployments.Leveraged vendor resources for complex implementations and problem resolution to deliver fast turnaround oncustomer iniatitives.Mentored and helped develop junior engineers to expand their contribution to the security operations team.Secured data, applications and infrastucture across hybrid and multi-cloud environments.Utilized ServiceNow to manage customer workflows and track device inventory.

Upgraded customer devices under AT&T management to address device vulnerabilities.Provided security, network implementation and trouble resolution support to AT&T Managed security customers.Assisted with incident management involved with project-based deployments for internal and external AT&Tcustomers.Built security profiles to include authentication, url and content filtering and deployed these profiles ontocustomer production devices.Engineered solutions for customer network and security issues found during beta testing in order to completedelivables for project needs prior to go-live.Configured vpn tunnels for secure and reliable transmission between AT&T customer's and their externalvendors.Configured TACACS+, Radius, LDAP and Multi-Factor authentication.Configured and deployed high availability environments to enable failover and network device redundancy.Administered zero trust platform to securely connect devices, users and applications to eliminate legacy network and security infrastructure.

Paris, France, Fr

Participated in the implementation, operations and support of enterprise security solutions.Configured VPN/network gateway infrastructure, security SSL certificates, application and database firewalls,and proxy/content gateway servers.Supported PCI and additional internal and external audit iniatives.Configured and deployed access control and threat prevention policies.Supported multiple projects as a part of financial services vendor new application development and customerintegration teams.Migrated applications hosted on customer legacy networks to internally hosted systems.Worked individually as well as in a team environment to meet and exceed network deliverables.Supported application teams with architectural design and analysis.Tested security tooling to automate security standard methodologies.

Dallas, Tx, Us

Assisted with testing of installed systems to ensure protection strategies were properly implemented and working as intended.Assisted in incident response and recommended corrective actions.Participated in development and maintenance of global information security policy.Maintained security of voice and data networks and equipment.Monitored and maintained physical and logical security and access to systems.Responsible for support of existing security policies and procedures, as well as creation and implementation of new security procedures.Assisted with the upkeep of network infrastructure including switches and load balancers.Configured Cisco VPN 3000 Concentrator to allow VPN clients.Upgraded Cisco Routers, Switches and Firewall (PIX) IOS via TFTP.Assisted with troubleshooting of infrastructure systems such as DNS, email, VPN, wireless networks, firewalls, and enterprise authentication.Supported BGP, EIGRP, HSRP, and MPLS for Global AT&T Clients.Supported Checkpoint Firewall versions R55 and R65 running on Nokia IPSO and Solaris Platforms.Utilized VPN-1/FireWall-1 debugging tools and applied protocol analyzers to capture and view packet informationConfigured Site-to-Site and Remote-Access VPN solutions.Supported Cisco ASA 5505, 5520 and Cisco PIX 515e, 525, and 535 for Managed Security Services Customers.Provided end user support of Checkpoint firewalls to include change control and implementation of rules/policies.Provided support for and configuration of NetCache and Bluecoat proxies including packet analysis and content filtering.Configured and Supported Blue Coat proxies via Blue Coat Director and stand alone access.Configured and Supported Juniper Netscreens and SRX Firewalls using Screen OS and Junos Platforms.Configured and Supported Checkpoint VSX on Crossbeam Platform.Implemented Customer Juniper Firewall policies using Netscreen Security Manager.

Performed extensive network and device debugging of complex routing and design issues.Wrote process documentation for users to troubleshoot VoIP network issues.Configured PIX firewall interfaces for NAT and PAT.Configured ACL's for PIX and Cisco Routers according to customer security policies.Configured SIP phones including Cisco 7940/7960 and Polycom 501/601.Set voice lines to negotiate g711/g729 codecs for varying compression rates.Assigned Shared Local Gateways for VoIP Platform users.Used Agilent Network Analyzer to isolate network jitter, one way audio and other customer QoS issues.Configured DID's on office routes in Class 5 -DMS switchesUsed Ethereal/Wireshark to analyze Network packet captures.Analyzed real time call captures to diagnose and troubleshoot SS7 signaling issues.Deciphered Transaction Detail Records to follow call flow through Broadsoft network and application serversConfigured Mediatrix 1104/1124 devices as well as Siemens and Adtran Routers to support VoIP end users using analog and SIP phones.Assigned customer's DNS servers to allow SIP Domains to communicate with Broadsoft application, network and redirect servers.Performed troubleshooting and debugging of call flow through Cisco 2811 EGW and Adtran routers.Built and configured dial-peers and provisioned them into customer routers to allow for digit manipulation.