Experience

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  University of north texas

  Jan 2004 - Dec 2005

  Design and implementation of Feedback control model Worked as a part of research for a model based on "Automated defense against worm propagation"Built and implemented a simulation of enterprise test-bed for performance testing of the model. Teaching under graduate students CS 101. Also assisting professors in exams evaluation

  • Research assistant

    May 2005 - Dec 2005

  • Graduate Teaching Assistant

    Jan 2004 - Apr 2005
• 

  Sipera systems

  Dec 2005 - Jan 2009

  Software engineer

  * VOIP Security Application Development * Design and developed Cisco Skinny, SIP security, and proxy features. * Owned several critical features like SIP, Skinny cluster support, Two factor authentication with Radius, Probing, Skinny call handling

• 

  Alcatel-lucent enterprise

  Feb 2009 - Dec 2015

  Leading a team of Engineers to deliver User Plane features for Mobility Gateways on all supported platforms. Also functioning as a Principal Engineer delivering features in every release. Team is responsible for- Evolved Packet Core LTE gateways (4G/5G), - Trusted / Untrusted 3GPP Wi-Fi access gateways ( Epdg/ WLAN gateways), - Involved in support for Routing features towards the Internet. Involved in all phases of Software Development life cycle for all features. Show less Responsible for taking ownership of features independently, designing them, developing and maintaining them. Also responsible for mentoring junior developers and helping them with design and debugging. Focused on datapath related modifications to support new features. Also involved in Design and implementation of LTE(4G) gateways. Working on LTE protocols supporting control and data path for Serving and Packet gatewayWorking with current 3GPP protocol standards for Evolved Packet Core designed to take the mobile operator network to the next generation telephony requirements. These include high scalability, reliability and HA.Responsible for design and implementing of features like redundancy, qos, idle buffering, HA, ipv6 reassembly on the gateways. Show less - Worked on supporting Geo Redundancy sync between applications running on Geo redundant chassis- Design and implementation of LTE(4G) gateways. Working on LTE protocols supporting control and data path for Serving and Packet gatewayWorking with current 3GPP protocol standards for Evolved Packet Core designed to take the mobile operator network to the next generation telephony requirements. These include high scalability, reliability and HA.- Responsible for design and implementing of features like redundancy, qos, idle buffering, HA, ipv6 reassembly on the gateways. Show less

  • Manager/Principal Engineer

    Oct 2014 - Dec 2015

  • Principal Software Engineer

    Jan 2013 - Oct 2014

  • software developer III

    Oct 2011 - Jan 2013

  • software development engineer

    Feb 2009 - Oct 2011
• 

  Nokia

  Jan 2016 - Jul 2021

  Software engineering manager

  • Leading Data path team. It’s a team of 12 engineers in Mountain View CA and Athens Greece. Responsible for Hiring, Training and Growth of the team. • Also functioning as a Software Development engineer adding support for new features every release. • Virtualization/Containerization of all the Gateways (for mobile gateway NFV support), Enable Kubernetes usage for Mobile Gateways application. • Enable high performance data plane on Cloud using DPDK and AF_XDP. • Also looking at supporting Service Based Architecture proposed in new 5G standards for Mobile Gateways. • Evolved Packet Core LTE Gateways, Trusted/Untrusted 3GPP Wi-Fi access gateways (Epdg/ WLAN gateways), TDF, Steering gateways.• Responsible for maintenance of FIB (Forwarding Info Base - Routing table) code merged from Routing team. • Responsible for feature deliveries, date commitments, planning and design of Data path related features. • Team is responsible for high scalability, reliability, redundancy and geo redundancy. Show less

• 

  Microsoft

  Aug 2021 - now

  Working on Microsoft Azure Firewall Service Working on Microsoft Azure Firewall

  • Principal Engineering Manager

    Apr 2022 - now

  • Principal Engineer

    Aug 2021 - Mar 2022