SHRIRAMA CHANDRAIAH

Experience

• 

  Nokia

  Mar 2014 - Sept 2020

  Research And Development Specialist

  • IP Security testing. • Performed security scan (NMAP, Qualysguard) testing for EnodeB port scanning and vulnerability scan- mapping, risk assessment, analysis and report preparation.• DSCP based QoS testing.• Prepare E2E setup: eNB with EPCSIM.• Cisco router and switch configuration in lab bring up activity.• Integration of cells/sites using BTS site manager (Nokia tool).• E2E Transport manual and UTE test line bring up FSMR3 and Airscale• Fault Management, Configuration Management testing in NMS.• Performed Testing on Smart Monitoring NMS FM application.• Performance Testing on Fault Management and report preparation for various NetAct releases.• Alarm Enrichment feature of NetAct which is based on VNF Architecture.• Integration of various 3G, 4G network elements to NMS. • Integration of CBIS (Cloud band Infrastructure Software)- VNFI, CBAM (Cloud Band Application Manager)- VNFM and other VNF elements.• Tested 3G-core Applications like MGW and mcRNC.• High Availability Services (HAS) – Hot-standby and cold-Standby• Carried out Functional & System Test Case Execution, Troubleshooting and Reporting.• Worked on simulated traffic with IXIA. Show less

• 

  Airspan Networks

  Sept 2020 - May 2022

  System Verification Engineer

  1.Good at analyzing New feature/Test cases/Test Plan/Test Execution and Requirements.2.Having good experience in LTE/NR RAN Testing.3.Good Understanding of the overall 5G/LTE RAN network Architecture, call flow, protocol layer and new concept of 5G like Numerology, Network slicing, BWP etc. 4.Regression, Functionality, Cross Functionality and Scalability testing on all new 5G/LTE product SW builds.5.Preparing Test plan, Test cases, Understanding SRS, Various Test Strategy for LTE, NR and also reviewing Test scenarios/test cases with Test Architect.6.Raising the defects in JIRA for assigned TC’s and track it till closure.7.Taking care of defects which need to be reproduced, KPI and counter pegging issue, lte Attach, handover related issue in LTE.8.New Feature testing of latest 3GPP release specifications.9.Good understanding of different protocol layers of PHY, MAC, RLC, RRC and PDCP.10.Hands on experience with QXDM, Amarisoft, Spirent, IXIA tools. Show less

• 

  Mavenir

  May 2022 - now

  Senior Memmber of Technical Staff 2 R&D