Mohan R Email & Phone Number

Bengaluru, Karnataka, India

Bengaluru, Karnataka, India

• Conducted 5G core UPF node testing and managed integration and deployments on CNF and Kubernetes environments.• Utilized in-house tools and landslide for testing purposes, ensuring high-quality performance and functionality.

Bangalore Urban, Karnataka, India

Proficient in quality assurance for various 5G core network components, including AMF, NRF, NSSF, and UPF.Conducted comprehensive testing of key AMF features, such as service requests, mobility, handovers (HO), N26 interface, combo functions, and more, focusing on functionality, performance, and security.Implemented test automation for AMF, NRF, and NSSF using Light Weight CATT (LWC) to enhance both test efficiency and coverage.Utilized tools such as ADO (Azure DevOps), JIRA, and… Show more Proficient in quality assurance for various 5G core network components, including AMF, NRF, NSSF, and UPF.Conducted comprehensive testing of key AMF features, such as service requests, mobility, handovers (HO), N26 interface, combo functions, and more, focusing on functionality, performance, and security.Implemented test automation for AMF, NRF, and NSSF using Light Weight CATT (LWC) to enhance both test efficiency and coverage.Utilized tools such as ADO (Azure DevOps), JIRA, and TestRail to efficiently manage bug tracking, requirements, and test execution.Thoroughly evaluated all NRF services, encompassing management, discovery, subscription, and OAuth, in both NRF and NRF-agent, with a focus on functionality, performance, security, and compatibility.Conducted soak testing on NRF to validate its robustness and reliability in various scenarios.Served as the Quality Assurance lead for NRF and NRF-agent (a microservice), responsible for overseeing functional, regression, and customer issue testing.Assessed a wide range of UPF features, including traffic handling (ICMP, TCP, UDP), NAT (Network Address Translation), and successfully resolved customer issues.Leveraged Azure cloud services for testing 5G Network Functions (NFs) through Azure DevOps and Azure DevTest Labs.Actively contributed to identifying and resolving customer defects while implementing quality improvement initiatives to enhance testing processes.Gained exposure to cutting-edge technologies, including Kubernetes, Containers, OpenStack, and Cloud-based systems.Recognized and honored with two Spot awards for significant contributions in elevating the quality of testing and enhancing the test suite. Show less

5G core testing engineer

Bengaluru Area, India

E2E NB-IoT(IP/NIDD) testing and integration and Device IOT(LTE/NB-IOT).Products worked:Qualcomm(MDM9206), AMTel(Korea), BORQS(India), KDDI(Japan), Reliance JIO, Verizon, Securemeter(Quactell), Samsung Kids tracker.Tools used: QXDM, QMITest pro, QCAT, Qpst, Wireshark, Python Summary:• Setting up the lab for E2E call setup for NB-IOT and LTE for different vendors, configuring LSM, eNB setup, eNB to EPC connectivity configuration and CDU/RDU unit setup.• Designed test… Show more E2E NB-IoT(IP/NIDD) testing and integration and Device IOT(LTE/NB-IOT).Products worked:Qualcomm(MDM9206), AMTel(Korea), BORQS(India), KDDI(Japan), Reliance JIO, Verizon, Securemeter(Quactell), Samsung Kids tracker.Tools used: QXDM, QMITest pro, QCAT, Qpst, Wireshark, Python Summary:• Setting up the lab for E2E call setup for NB-IOT and LTE for different vendors, configuring LSM, eNB setup, eNB to EPC connectivity configuration and CDU/RDU unit setup.• Designed test cases for NB-IOT(IP/NIDD) reviewed and performed integration and testing each individual vendor.• Performed NB-IOT/NIDD device testing for the features PHY layer, RACH test suite, DL/UL test suite, DL-GAP, Paging, HARQ, Latency check, UL(3.7Khz/15Khz), RRC test, Mobility (Cell Reselection) test, Throughput(singletone/multitione) test, eDRX and PSM (Power Saving mode). • Issue handling, bug tracking and customer follow up with fixing the issues.• SCEF integration and Testing with Samsung Core IOT.• Performed Attach, control plane optimization (SCEF I/W and G/W I/W), TAU, eDRX, paging, PSM, SCS communication.• Supported the Phase 1 C-IoT MME testing with vendors SCEF (UANGEL, n TELS).• LTE DeviceIOT testing with different chipset devices for different Bands for JIO, KDDI and Qualcomm.• For LTE device IOT, tested attach, Volte, Handover, Cell reselection, Carrier aggregation(CA) with different band combinations (up to 5CC), latency, single user Peak throughput.• Preparing reports for share it across team and customers. • Developed Pyhton GUI based tool to control the attenuator and shared for global team use. Show less

Bangalore Area, India

LTE-MME- system testing Tools: EAST , DevTest, WiresharkResponsibilities:• Analyze, review, and estimate effort for new test cases based on MME specifications and requirements• Develop, review, and rework test cases• Create and execute OAM test plans• Perform IOT testing for Radisys, eNB, HSS, and SGW• Conduct system testing using the EAST simulator• Support the development team with EAST tool scripting and IT testing• Analyze logs, report defects, and… Show more LTE-MME- system testing Tools: EAST , DevTest, WiresharkResponsibilities:• Analyze, review, and estimate effort for new test cases based on MME specifications and requirements• Develop, review, and rework test cases• Create and execute OAM test plans• Perform IOT testing for Radisys, eNB, HSS, and SGW• Conduct system testing using the EAST simulator• Support the development team with EAST tool scripting and IT testing• Analyze logs, report defects, and generate test reports• Test new MME builds and patches• Execute regression and sanity testing• Automate EAST scripts for automation testing, debugging, and report generation• Test, analyze, report bugs, retest, and prepare test reports Show less

Bengaluru Area, India

Domain: Wireless Domain of VoLTE, LTE, 3G/UMTSRole: System Tester for VoLTEClient: AT&TTools: IXIA, HPQC, Wireshark, Land SlideProject Profile: VoLTE End to End Network validationSummary:• Involved in reviewing network design documents, gathering information for TOL design, and finding gaps in NDRs.• Experienced in test planning, designing, execution, defect tracking, and protocol testing (GTPv2, Diameter, SIP, RTP).• Tested LTE EPC nodes (SGW, PGW, PCRF) and… Show more Domain: Wireless Domain of VoLTE, LTE, 3G/UMTSRole: System Tester for VoLTEClient: AT&TTools: IXIA, HPQC, Wireshark, Land SlideProject Profile: VoLTE End to End Network validationSummary:• Involved in reviewing network design documents, gathering information for TOL design, and finding gaps in NDRs.• Experienced in test planning, designing, execution, defect tracking, and protocol testing (GTPv2, Diameter, SIP, RTP).• Tested LTE EPC nodes (SGW, PGW, PCRF) and performed rigorous end-to-end testing of data, VoLTE, supplementary services, and video calls.• Tested different messages via S11, S1-U, S5, Gx, Rx, and S6b interfaces.• Successfully rolled out different feature releases, including emergency services, IR92, IR94, VoLTE CDR enhancement, idle bearer timeout, and GW graceful shutdown.• Coordinated with onsite teams to understand customer requirements, interacted with vendors for release-specific issues.• Designed test cases to meet NDR/3GPP specifications, tracked defects using HPQC, and used simulators (IXIA IxLoad, Spirent LANDSLIDE). Show less

Bachelor Of Technology, Information Technology

B.Tech IT

Education record

Matriculation