• Unified communications services: Working as a senior engineer Microsoft technologies with Office365 Portal, SharePoint Online, and OneDrive for Business. Working with the Team members, Technical Leads, Team Manager, Support Escalation Engineers, and Technical Advisors of Microsoft to isolate and deliver resolutions to Microsoft Customers more efficiently and timely. Part of the Concierge Support Team for Business customers in the U.S. and EMEA. Data Collection for Daimler Clients in EMEA Based Countries, including I.P. Phones, Fax Machines with all possible legacy machines to replace with all the Microsoft Teams Components.• Design and Implementation PPPOE as Server: Protocols associated with a PPPOE Server have studied and analyzed. Singleton Class implementation of the Stack on Star UML using C++. Multiple messages and state machines are implemented. LCP and Authentication module unit tests. Generate and Load Images on AXOS and use Sandbox to validate their integrity. Resolve tickets and assist peers and juniors. Participated in the creation of Sandbox Docker and Testbed for multiple branches

Open Air Interface Integration: Installation and Setup for the OpenAirInterface EURECOM Gitlab Server. Commercial U.E, eNodeB, and EPC Configuration (MME, HSS and SPGW). Market Research and Identification of Available 4G SIM Cards for Commercial UE Data Burning. Attached for 4G Smartphone (Oppo, Asus) and Skype communication. Examining the S1AP Interface Wireshark and System logs for EPC and eNodeB

• Regression Testing for the ATT Service Zones: Preparation of the PID and PCD, Creating the Sheet of Estimates and Productivity, Using iTest for Automation to create a Test Plan, Test Cases, and test scripts. Configure and run the test cases, and verify the Radio messages, G.W., EPC, and IMS Logs.• Log Analysis for Pareto and Sundance Markets: Analysis of VOLTE logs for end-to-end Reliability and Accessibility failures. Capture failure case logs, analysis, and mapping for Q.C. and JOT with a report to the onsite team. Participated in HPQC's eNB Regression Testing of IPV4 and DSB(IPV6) Analysis. eNB Regression and Health Check for ALU and Ericsson Lineup.• Scripting of S6a Diameter using HP-Seagull: Client Server Model implementation of all messages for the S6a Interface Diameter protocol. Create a test suite and provide feedback to the Onsite team. Investigation for an Orange POC on Active Queue Management implemented on LTE eNodeB to achieve High data throughput and reduce TCP Congestion• 3G-HNB Gateway (FEMTO): Create Test cases for HNBGW and a test plan. Establishing test environment on live SUT as HNBGW (I.P. Network Controller) with simulated SCSN/SCRN and MSC/SGSN/GGSN entities. Hand-in Enhancement Implementation for Spider Cloud E-Ran with a Robust Network for HandIn, HandOut, and Handover. Scenario testing for C.S., P.S., and CS+PS. Using PL-SQL queries to confirm the table and its values.

• Monitoring Stack for 4G & 3G Interfaces: Analyze the Marketing document and transform it into the Product document. All messages are tested using different test cases and group I.D.s. Q.A. for every interface (Purecov, Purify, Insure, Avtecs, RTR Tools). Testing the performance of the various Platforms (XE-80 blade, Solaris and ATCA-PP50). Performing a 72-hour Stress test on all Interfaces.• Design and Implementation of S1AP Module: Design and Implementation of Rhapsody UML's S1Ap Module. Identify the best available and practicable compiler for ASN S1AP, X2AP, and RRC. Encoding and decoding of S1Ap messages for V8.5.1 Objective System Compilers. Executing the Gcov tool for code coverage and Unit Testing on all S1AP procedures and validating the Hex code with the ASN1 free tool. Using the Valgrind tool to verify memory leaks, conduct debugging, and fix memory leaks that have been discovered.• 3GPP LTE L3/L2-eNodeB Development (LTE): 3GPP TS36.331, TS36.304, and TS36.413 SRS Specification Research and Analysis. Analysis of the performance and time constraints of the Paging and broadcast scheduler in all 3GPP release scenarios 8.5. Implementation of DRX Cycle, monitoring of PDCCH, and calculation of each radio frame's Paging event. Identification of memory leaks and resolution of memchecks, as well as participation in Unit Testing for various scenarios. Unit testing for the Call and Bearer control module setup, modification and release procedures. Deltas for 3GPP specifications of various releases are recorded. Compatibility with the ASN1C compiler. Transferring library code to VxWorks. Evaluating the L3 call flow using various scenarios

• Implementation of Iub Data Offload Gateway for 3G: Identification of RRC offloading procedures from TS25.331 3GPP specifications for various releases. IubDO-GW Architecture's high-level and low-level design. Implementation of unique messages between Rel 3 and Rel 7. Testing of RRC Connection Setup, R.B. Setup, and RRC Reconfiguration messages at the unit level.

Trainee Software test engineer with manual on web based Testing.Attended 3 day Training session conducted by the Organisation on CSTM (Certified Software Test Manager)