Alwin Xavier

Experience

• 

  Tata Teleservices Ltd

  Sept 2005 - Jan 2006

  O&M Engineer ( Trainee )
• 

  ZTE

  Jan 2006 - Dec 2007

  CDMA Packet core/ VAS Engineer

  Worked as ZTE ( off role ) Packet core / VAS engineer. Handling ZTE BSNL WLL project, which includes PDSN network, South zone SMSC and HLR

• 

  Ericsson

  Dec 2007 - Jan 2012

  Solution integrator packet core/EPC

  Worked as a EPC solution architect and solution Integrator. Specialized in SACC soltion with Deep packet inspection in PCEF nodes ( GGSN, PGW,SASN ) and policy control in PCRF.Planning and integration of varies nodes like : HSS, MME, SGW, PGW, SGSN, GGSN, PCRFVery good knowledge in interfaces like: Gx, Rx, Gy, S6a, GTPv2 and GTPv1 interfaces.

• 

  Cisco Systems

  May 2012 - now

  • Innovated and contributed as an IP Patent Contributor in developing new solutions in the 5G and 6G spaces.• Led initiatives on 5G core elements: SMF, AMF, UPF, NRF, and PCF.• Collaborated with cross-functional teams to create high-quality software products within tight deadlines. • Facilitated lab setups for validating complex customer issues and served as a lab SPOC for mobility challenges.• Organised technical discussion forums to motivate the team.• Developed TAC 4G CUPS and the first 5G miniature labs, both adopted widely within Cisco. • Provided effective solutions for customer problems in 3G/4G networks.• Simulated and resolved complex packet core signaling issues in the lab.• Collaborated with cross-functional teams to ensure successful problem-solving.

  • Customer Delivery Engineering Technical Leader

    Jun 2021 - now

  • Technical Consulting Engineer Escalation

    Feb 2016 - May 2021

  • Technical Consulting Engineer

    May 2012 - Feb 2016