Experience

• 

  Intracom telecom

  Apr 2010 - Oct 2010

  Ιτ infrastucture support

  Application Software, Networks, IT services, Operating Procedures

• 

  At&t mobility

  Jul 2011 - Aug 2013

  Mobility network engineer

  Responsible for Monitoring, Analysis, and Resolution of faults occurring in Network Elements. The supported elements include: GGSNs, PGW, SGW, PCRF, Routers, Switches, Firewalls, VPN Concentrators, Load Balancers, Terminal Servers, and Circuits. Recently responsible for HP HLR/HSSs.

• 

  At&t

  Aug 2013 - now

  • Working on escalations from ATS management and from LCM/SM teams and responsible for the resolution of complex customer service impacting network outages.• Escalating to TAC support centers and will have to work with various vendors to ensure operational outages are resolved via patches and software releases for a bug fix or recommend design/configuration changes.• Extensive understanding and experience in AT&T’s EPC networks and their impact on security, stability, scalability, and operations.• Deep understanding on designing, implementing and/or troubleshooting Mobility Evolved Packet Core (EPC) and associated service flows.• Advanced knowledge of service provider gear on various CISCO, Ericsson & Affirmed/Microsoft platforms.• Working knowledge of KVM Virtualization solutions.• Advanced knowledge designing, implementing and/or troubleshooting in Cloud Architecture• Broad understanding of ATS role in network operations and product delivery lifecycle.• Participate in any certification for upcoming SDN solutions and help prepare MOP for life cycle mgt teams.• Meet Center based KPI & Customer Fault Management reports and recommend improvements. Show less • Performing in operations environment as a network engineer and subject matter expert, responsible for Cisco GGSNs/LTE EPC(7613,ASR 5500), Juniper SDG(MX960), PCRFs, OCGs, BIND DNS and Alcatel-Lucent VitalQIP platforms. • Working with related Operations and NOC teams to troubleshoot and resolve general core mobility network issues, as well as BMG support teams to resolve enterprise-level data user problems. • Conducting routine maintenance, testing and repair of system hardware, software and related equipment. • Working closely with national Engineering teams to perform integration of new data network elements and/or services into the existing production environment. • Performing Protocol Analysis in support of network element or customer device troubleshooting.• Working closely with vendors including Cisco, Juniper, F5, Red Hat, Openet, Ericsson, Nokia-Siemens, Alcatel-Lucent, Sun and others to engage technical support and professional services staff to help solve problems or implement changes. Show less

  • LEAD - ADVANCED TECHNICAL SUPPORT

    Sept 2022 - now

  • Senior Technical Specialist - vEPC Engineer

    Aug 2013 - Sept 2022