Experience

A5G Networks, Inc.
• Technical Architect

  • Aug 2022 - Present


Parallel Wireless

• United States
• Wireless Services
• 200 - 300 Employee

• Principal Systems Engineer

  • May 2021 - Aug 2022

  - Open RAN Trials/PoCs (4G/2G) - Author/Review High Level/Low Level Design/Solution Proposal documents - Customer presentations on various technology solutions/planned deployments - Baremetal (PNF)/Virtualization (VNF)/Cloud Native (CNF) based solutions - Kubernetes/Linux Containers/VRRP - Core Routing/Access Routing/MPLS - Fronthaul/Backhaul/Midhaul/eCPRI/FastPath/DPDK/VPP - Cell Site/Data Center Routing/Installation/Connectivity - Baseband Unit (BBU)/ Remote Radio Head (RRH)/X2GW/SecGW/HeNBGW/Femto Cell/Small Cell Show less



Cisco

• United States
• Motor Vehicle Manufacturing
• 1 - 100 Employee

• Software Engineering Manager | Technical Leader

  • May 2019 - May 2021

  - Lead Automation Infra, Automated (Impact|Sanity|Release) Regression and Integration Test Team- Primarily responsible for providing end-to-end infrastructure support for test automation to all EPC Gateway products - Integration testing for feature integration integrating features with scale and longevity testing for a given release (N, N-1 testing)- Automation Process Enhancements: - Implement Automation DoD and Production Suite Acceptance process - Automated Valgrind testing - Dynamic test setup allocation based on calendar based booking, helping optimized test infrastructure utilization - Automated Impact based Regression (GCOV/LCOV based tool) - Improving Automation stability for Functional Regression Test, Sanity Regression Tests, Smoke Tests - Automation impact review for new, existing changes in the product functionality e.g. CLI changes - Detecting automation infrastructure instability and auto abort the executions- Review QA Test Plans, removing obstacles of QA Engineers, support on technical aspects/issues- Reviewing/highlighting issues, bugs found during regression testing/scrubbing for a given software release. Suggest back-porting for proactive MR/ER/EFT releases- Responsible for Software Quality aspect for all the test teams, reviewing and sharing data points from QA process enhancements- Engagement with pre-sales, product management, engineering support teams across organization- Technical support/query resolution, additionally reviewing HLD design documents, customer IOT RFP, CFS, customer ATP etc.- Functional Test Process Enhancements: - Interlock with Customer Delivery, Escalation Management teams to ensure no gaps in Customer ATPs, Lab Trials - Discipline in QA processes and milestones - Enabling Impact based Regression testing during Discovery Test phase, Bug fix code commits - Introducing various quality gates to ensure high quality and software stability - Proactive test coverage for Customer issues, Field issues Show less

• Technical Leader | Senior Software Engineer

  • Dec 2009 - Apr 2019

  - Gateways: 4G-LTE EPC core nodes Serving GW (SGW), PDN GW (PGW), 4G LTE Control Plane User Plane Separation (CUPS)- Technology: 4G LTE, IoT, EUTRAN- Modules: Vector Packet Processing (VPP), Policy and Charging (Online/Offline), Software Resiliency, Hardware Redundancy, High Availability- Protocol/Interfaces: GTPv1, GTPv2, Sx|PFCP, Gx, Gy, Gz, S2a|S2b, S6b, Diameter, LI (IRI|CC), IPSec- Platform: ASR5000, ASR5500, VPC-SI, VPC-DI- Responsible to review design documents (SFS|SuFS), customer IOT|RFP, CFS, Customer ATP test-plans etc.- Handled 3GPP standards/Customer Specific feature testing (Discovery test/Integration test/Longevity test)- Defining and setting-up test setup topologies in order to verify protocol implementation, scaling limits and assessing gateway performance for an endurance test setup- Design, develop, and document functional & interoperability level verification tests based on systems specification and product requirements documents- Contribution in defining and reviewing external interfaces and functional description of the system nodes - Execute Functional, ATP and Customer specific use-cases. Track test progress and document results. Raise, prioritize, and validate defect fixes.- Responsible for Scripting/Automation of the test procedures- Provided technical support to pre-sales, product management, product marketing, cross functional engineering teams across organization- Contributed in defining test automation infrastructure for CUPS product Show less

• Software Engineer

  • Dec 2004 - Dec 2009

  - Gateway Node: PDSN/FA/HA- Technology: CDMA, CDMA2000- Modules: IP pool, AAA, IP Routing, Mobile IP (MIP), Gratuitous ARP (GARP), Software Resiliency, Hardware Redundancy, High Availability - Protocol/Interfaces: A10, A11, RADIUS Authentication/Accounting, IMS- Platform: ST16, ST40- Handled 3GPP2 standards/Customer Specific feature testing (Discovery test/Regression test/Integration test)- Design, develop, and document functional & interoperability level verification tests based on systems specification and product requirements documents- Execute Functional, ATP and Customer specific use-cases. Track test progress and document results. Raise, prioritize, and validate defect fixes.- Responsible for Scripting/Automation of the test procedures- Review test plan, test checklist documents- Debugging and solving issues, problems during Lab ATP Show less