Sivanarasu Azhagappan
Senior QA Automation Engineer
Bangalore
Summary
Dedicated QA Test Analyst with over 9 years of experience in telecommunications, specializing as a Protocol Test for LTE, NR using 3GPP Standard releases, Wi-Fi (IEEE 802.11). A strong team player with the ability to work independently, I possess exceptional skills in technology comparison and a proven track record of delivering effective solutions in the telecom industry.
Experienced with designing and implementing automated test scripts to improve software quality. Utilizes in-depth knowledge of Selenium and Java to efficiently identify and resolve defects. Track record of collaborating with development teams to ensure comprehensive testing and reliable software releases.
Overview
10
10
years of professional experience
2015
2015
years of post-secondary education
1
1
Certification
2
2
Languages
Work History
Senior Automation Test Engineer
L&T TECHNOLOGY SERVICES
10.2022 - Current
- Company Overview: An information technology firm with 18k employees, $1.7 billion in revenues, and clients in automotive, aerospace, industrial products, medical devices, and IT services.
- Project -Deutsche Telekom AG
- 3GPP protocol Testing (Cellular backup, UBI) various releases FWA Devices with 5G Simulation Network.
- N3IWF Test verification.4G/5G Testbed Integration Test suite creation, Test Network Bring up.
- Automation Script writing and test setup execution Automatics with java and Python.
- Router Testbed creation L2/L3 Protocol.
- Traffic generation, Speed test, performance test,TCP/UDP.
- Jenkins CICD pipeline execution Bug Raise and Debugging.
- Test Log verification and documentation.
- Carrier aggregation, PDN connectivity, Throughput, UE deactivation.
- Sim card writing with various Algorithms. Ex. milenage algorithm.
- Docker compose, creation, docker network, and access management.
- An information technology firm with 18k employees, $1.7 billion in revenues, and clients in automotive, aerospace, industrial products, medical devices, and IT services.
Lead Engineer
HCL TECHNOLOGIES LTD
07.2022 - 09.2022
- Company Overview: An IT services firm with 2L employees, ~$12 billion in revenues, and clients in technology, healthcare, financial services, and manufacturing.
- Project-Nokia Siemens Networks
- General information about the responsibilities of this role, reserving details for bullet points.
- Train Mentees Multi RAN Technologies, Protocol Techniques.
- RFQ Proposal Plan Discussion and Deliver the Presentation.
- Ramp-up Planning and Sow Deployment Planning, Discussion and Presentation.
- NR Technology QoS Management and Protocol Stack Techniques Learning.
- Testing 4G, 5G (SA/NSA) Projects at the New product introduction stage in the lab to actual deployment in the field on VNF and CNF-based Open RAN solutions on different Infrastructure platform Mavenir.
- Debugging field data and identifying potential problems and re-creating.
- An IT services firm with 2L employees, ~$12 billion in revenues, and clients in technology, healthcare, financial services, and manufacturing.
Team Lead
STEELMAN TELECOM PVT LTD
07.2021 - 05.2022
- Project-Nokia
- Log analysis, Debugging, Test failure reporting of collected logs using QXDM, QCAT & Wireshark.
- Logs Analysis of RRC Connection Setup, RRC Connection Reconfiguration, RRC Connection Reestablishment, RRC Connection Reject, HO, attach success, Detach Success, CS Service Notification, Extended Service Request, UE Capability information, SIB, MIB, PHICH, PDDCH, PDSCH, PUCCH, PUSCH, Security mode command, RRC Connection Release, DRX Cycle.
- Experienced with LTE/5G UE and core network simulators (Aeroflex, Prisma).
- Skilled in functional testing, stress testing, and bug tracking/reporting for new feature releases.
- Analysis of Call Flow, RRC, NAS, GTP, SIP, DIAMETER, S5/S8, S6a, Rx S11, S1-MME Logs from Endto-End Perspective.
Test Engineer
UNIINFO TELECOM SERVICES
10.2018 - 06.2021
- Project 1# UE Conformance Testing (Layer3) [24.301, 36.523] [TS- 36.331, 36.523]
- Conducted detailed conformance testing of the LTE Attach procedure on mobile handsets, adhering to 3GPP TS 36.523-1 ,3GPP TS 36.331 specifications.
- Validated Non-Access Stratum (NAS) procedures as defined in 3GPP TS 24.301, ensuring accurate UE registration with the Mobility Management Entity (MME).
- Executed test cases using the Anite Conformance Toolset, focusing on scenarios such as: Successful Attach with IMSI and GUTI reallocation, Attach Accept message handling, Attach rejection cases including invalid IMSI, PLMN not allowed, and tracking area restrictions.
- Analyzed log files to identify issues and reported bugs to the development team for resolution.
- Tested RRC procedures including connection establishment, re-establishment, release, and reconfiguration, utilizing the Anite Conformance Toolset for execution.
- Project 2# UE Conformance Testing (Layer2) [TS- 36.321, 36.523]
- This project includes conformance testing of Layer 2 features in mobile handset according to the Test specification 36.523 provided by 3GPP.
- The Medium Access Control (MAC) layer of the radio interface protocol stack is specified within 3GPP TS 36.321.
- Testing Mapping between logical channels and transport channels, MAC PDU header handling and MAC Backoff indicator, Correct handling of MAC control element Buffer status, Power Headroom, MAC padding DRX Command.
Quality Engineer
QUESS CORP LTD (MAXEED)
03.2017 - 09.2018
- Test Engineer
- Deputed in RJIO Infocom Ltd, Chennai.
- Quality checking the site after installation completed. SCFT Analysis and Optimization.
- Small Cell LOS Survey, IBS Installation, UBR Installation, Commissioning, Integration.
- Good Knowledge of LTE Nodes: MME, PGW, SGW, and LTE Interfaces.
- Experience in UE/eNB-based log Analysis, finding RCA Bugs, and creating defect Reports.
- Blend Knowledge, creative, and Analytical abilities to produce bottom-line results.
RF Test Engineer
ALPHA ASSOCIATES
10.2015 - 02.2017
- RF(OTA) Engineer
- Deputed in IDEA Cellular Limited, Coimbatore, Ernakulam.
- Providing Processed Data to Customer & Project Manager and providing suggestions on Preparing Improvement Justification optimization.
- Analyze drive test data using MapInfo, Nemo Analyzer, TEMS Discovery and then performed required tilts in the cell site and adding missing neighbors.
- Analyzing Pilot Pollution, Overshooting, HO, Call drop, Poor data throughput, Poor Coverage & Quality, etc.
- Providing Recommended Solution by Analysis of Swap in sites, Pilot Pollution, Neighbor planning, HO Failure, Cell Selection etc.
- Good Knowledge in TCP/UDP, IP protocols, and understanding of the basic OSI model.
Education
B.E - Electronics and Communication
Salem College Engineering
D.E.C.E - Electronics and Communication
MIT
Skills
LTE
Accomplishments
- Integrated wireless testbed and contributed to the bring-up and validation of Fixed Wireless Access (FWA) and User Equipment (UE) systems.
- Set up PPPoE server from scratch and created a Wi-Fi testbed replicating field issues for effective debugging and validation.
- Successfully contributed to the delivery of a product based on the MediaTek chipset.
Tools Expertise
- GENEX: GENEX Assistant, GENEX Probe
- Mapping and Planning: MAP Info, Atoll
- Testing and Analysis: XCAL, XCAP, NEMO Analyzer, TEMS Investigation & Discovery
- Network Management: NETACT, ONE DATA, NPM, ACTIX
- Simulators: Amarisoft (UE and EnB Simulator), CWM500, TM500
- Debugging: QXDM, QCAT, TEMS, Wireshark, ANITE LOG VIEWER
- Operating Systems: Linux (Ubuntu, Fedora, Debian, Kali), Windows, Shell Script
- Framework: Automatics, Robot framework
- Project management: JIRA
- TOOLS: ANITE 9000, ANITE CONFORMANCE TOOL, ELT.
Additional Professional Development
- NR Network Slicing, Global digital learning platform HCL, 2022
- Shell Script Linux, Global Engineering Academy LTTS, 2024
- Kubernetes Administrator (CKA), Skillsoft
Profile Snapshot
Dedicated QA Test Analyst with over 9 years of experience in telecommunications, specializing as a Protocol Test for LTE, NR using 3GPP Standard releases, Wi-Fi (IEEE 802.11). A strong team player with the ability to work independently, I possess exceptional skills in technology comparison and a proven track record of delivering effective solutions in the telecom industry.
Awards
Star Of the Month, L&T Technology Services, 2023
Certification
Certified 5G Fundamentals, HCL
Timeline
Senior Automation Test Engineer
L&T TECHNOLOGY SERVICES
10.2022 - Current
Certified 5G Fundamentals, HCL
09-2022
Lead Engineer
HCL TECHNOLOGIES LTD
07.2022 - 09.2022
Team Lead
STEELMAN TELECOM PVT LTD
07.2021 - 05.2022
Test Engineer
UNIINFO TELECOM SERVICES
10.2018 - 06.2021
Quality Engineer
QUESS CORP LTD (MAXEED)
03.2017 - 09.2018
RF Test Engineer
ALPHA ASSOCIATES
10.2015 - 02.2017
D.E.C.E - Electronics and Communication
MIT
B.E - Electronics and Communication
Salem College Engineering
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