Sep 2014 – Feb 2019 · 4 yrs 5 mos · Noida Area, India

• Managed and delivered the architecture and design for NFRs for Pearson Digital Education Platforms involving Spring boot 2 and Kafka messaging platform.
• Solution/Technical designing of authorization framework for the platform to be consumed by the microservices.
• Solution/Technical design of caching framework for performance improvement within/across microservices communications.
• Led team for design of multi-saga choreography for the platform to be consumed by microservices.
• Led multiple teams for the design, development, testing and maintenance of SBC platform integration with OpenSAF, NFV and OpenStack.
• Created architecture for SBC platform/middleware services using OpenSAF provided services for High Availability (HA), Call replication and Session retention and Event/Notification services to replace legacy services.
• Delivered architecture and design for SBC platform virtualization with KVM and cloud enablement as well as SBC applications HA under OpenStack cloud environment.
• Led a team for re-engineering and resolving issues with corosync and pacemaker integration with SBC provisioning platform and its high availability.
• Led team for integration of NetConf and YANG with SBC provisioning and CLI interfaces with the backend business logic.
• Strategized several pre-sales, technical advisory and proposal activities.
• Suggested several architectural improvements, design and integration solutions as well as in formulating methodology for load tests and performance optimizations.

Aug 2007 – Sep 2014 · 7 yrs 1 mo · Noida Area, India

• Worked in different roles from Technical Architect/Manager to Senior Technical Architect/Manager for various projects in diversified domain like M2M, IoT, Cloud Integration, Virtualization and Networking.
• The work mainly involved Project and Process Management as well as defining architecture and design of different modules/products under consumer electronics, smart energy conservation and SMBG devices.
• Conceptualize, defining architectures and leading/mentoring team for designing and development of various modules for WiFi based consumer electronic devices with UPnP and NAT Traversal support using STUN, TURN, ICE for any anytime availability of the devices using a custom application running on iPhone.
• Led a team to porting/customizing PJSIP (an open source SIP stack) on MIPs based device for audio streaming to iPhone located to any remote locations.
• Defining architectural blocks and leading/mentoring team for designing and development of various modules for Smart Energy Management System Devices based on ZigBee and its interaction with cloud servers in the network as well as AMIs.
• Design and integration of RIPv2 and OSPF support on SMBG devices.
• Also involved in re-engineering of several other modules under different product lines as well as customer interaction, project, task and process management.
• Led team of variable sizes from 8 to 45 under different projects. Managed and mentored multiple project at the same time.

Feb 2003 – Aug 2007 · 4 yrs 6 mos · Noida Area, India

• Worked in various roles from SMTS to Group Manager. Led multiple teams of 5 to 30 members under different project streams.
• Consistent involvement/interfacing with Clients for Product field/lab trials and US counterpart for project and task management.
• Architected, designed and guided implementation of Media Gateway device Hardware Abstraction layer (HAL) framework consisting of different modules like Hardware Proxy Manager (HPM), Distributed Event Management Framework (DEMF), Health Monitoring Module (HMM), OSSL etc. on IXP425 as well as for host platform.
• Created specification for HAL interfaces for the Media Gateway Platform interfacing with MGCP and ISUP (SS7 Signaling entity) Abstraction Layer and guided the implementation of HAL interface layer.
• Significantly contributed to optimization of various modules on IXP425 side on device as well as on host side.
• Actively involved in deciding architecture and design of IP-CME variant Media Gateway.
• Significantly contributed to design & development Network Surveillance System Software over this Media Gateway using HAL Interfaces, libpcap and Ethereal Packet Analyze for SS7 PDU monitoring.
• Also, served as an software architect/team mentor for SR100 Computer Telephony (CTI) Platform and Media Gateway products from conception, architecture, design, implementation, and testing, stabilizing, upgrades to the product adhering strictly to SDLC processes.

Aug 2000 – Feb 2003 · 2 yrs 6 mos · Noida Area, India

• Worked of different modules and majorly QoS aspect of the Soloist/Duet SOHO CPE router product of the Network Virtuoso product family of Aplion.
• The work mainly involved design, development, testing and maintenance of Content based Quality of Service (cQoS) module based on Class Based Queuing (CBQ) concept with Packet Round Robin (PRR) and Weighted Round Robin (WRR) schedulers and support of DROP TAIL, Random Early Drop (RED) queuing disciplines as well as DiffServ support.
• Also, worked on cQoS and State full Packet Inspection (SPI) module interaction for policy based traffic management dynamically as well as Rate Limit Service (RLS) module (for logical link support between customer premises equipment and the edge router device).

May 1998 – Aug 2000 · 2 yrs 3 mos · Gurgaon, India

• Worked on the design and development of Global Resource Procedure (GRP), Call Control Protocol module as per V5.2 (ITU-T standard) specification, SSM-only NASS feature on global resource procedure (GRP) module support for Fixed Wireless Access Network related products of HNS, USA.
• Also, worked on Protocol Converter module for T.38/H.323 Annex-D Fax support on HNS PES 5000 Systems for Integrated Satellite Business Network related products of HNS USA.
• Active member of a two-member team and led the team from designing to integration/testing to the delivery of the File Broadcast II software to HNS, USA for ISBN systems. The customer as well as HNS, USA appreciated team for Zero Defect and smoothest on-site Customer Integration.
• Responsible for handling Buffer Utilization Feature on ISBN HUB feature singly from re-design, coding, testing to customer delivery and appreciated from the customer for Zero Defects.
• Development and testing of the Data Gateway, Subscriber end PC and Global Resource Procedure module software for Fixed Wireless Packet Data (FWPD) support for GMH 2000.
• Actively involved in the integration testing of the feature with other modules of GMH2000 system.