Sivakumar Chamala Email & Phone Number

Bengaluru, Karnataka, India

• Currently Managing multiple large Solution Integration and Test Function teams for the Charging Products (Prepaid, Postpaid), BSS Products Suite (CRM, Billing, Order Manager), Digital Accelerator Platform test team.
• Continuous improvements like automation (Selenium using JAVA, JTAF (java test automation framework)), RCA (root cause analysis) for escaped defects and addressing time to time corrective… Show more
• Continuous improvements like automation (Selenium using JAVA, JTAF (java test automation framework)), RCA (root cause analysis) for escaped defects and addressing time to time corrective actions.
• Involved in delivery management for important releases to customers and helped them to complete the traffic migration to a new geographic redundant solution. Show less

Bengaluru, Karnataka, India

• Managed Digital Accelerator Platform test team which has workflow orchestrator, microservices and Prepaid Charging which implements CAP2 Voice, CAP3SMS, Diameter flows.
• Automation using (PTAF (perl test automation framework), JTAF (java test automation framework)) for enhanced coverage and RCA (root cause analysis) for escaped defects and addressing time to time corrective actions.

Bangalore

• Feature enhancement, maintenance (bug fixing) of prepaid charging products which uses CAP2 Voice calls, CAP3SMS, Diameter call flows and maintaining test environments, writing test specifications to test.
• Setup E2E lab for both functional and performance use cases.
• Defining system test strategies and finalizing the test scope of each release.
• Automating the new prepaid features using jTAF (Java Test Automation Framework) and pTAF (Perl Test Automation Framework).
• Involved… Show more
• Involved in the integration with online voucher tariffing, content rating, USSD rating, voice tariffing (CAP2Voice) and integration of billing modules for the mobile networks. Show less

Bengaluru, Karnataka, India

• Feature enhancement, maintenance (bug fixing) of prepaid charging products which uses CAP2 Voice calls, CAP3SMS, Diameter call flows and maintaining test environments, writing test specifications to test.
• Setup E2E lab for both functional and performance use cases.
• Defining system test strategies and finalizing the test scope of each release.
• Automating the new prepaid features using jTAF (Java Test Automation Framework) and pTAF (Perl Test Automation Framework).
• Involved… Show more
• Involved in the integration with online voucher tariffing, content rating, USSD rating, voice tariffing (CAP2Voice) and integration of billing modules for the mobile networks. Show less

Bangalore

• Configuration through the command line interface manager for SS7 stack is application layer which runs on a host and interworks with SS7 stack for configuration through the command line interface.
• Involved in requirements gathering, solution provider

Bangalore

• Involved in the testing of the Q.921 procedures related to TX 3220 SS7 board
• Involved in the testing of the Restart procedures and Information elements encoding and decoding in the Network Signaling and Call Control procedures of Q.931
• Involved in the testing of the wrapper layer over Q.931 stack for easy communication with the E1 / T1 boards.

• Analyze and design the test specifications for the RLC/ MAC layer.
• Lead the testing functionalities for the RLC/MAC product, which involves various modules like TBF module – (Temporary Block Flow) – which basically allocates resources for all the incoming requests to the RR layer.TFI.
• Involved in testing of the TBF module handling the multiple TFI… Show more
• Involved in testing of the TBF module handling the multiple TFI procedures Show less

Bengaluru, Karnataka, India

• Involved in the testing of the Location Management Primitives, Call Handling Services Primitives and Short Message Service Primitives for MAP (Mobile Application Part) in compliance with GSM 09.02 phase 2+.
• Involved in writing the test stubs for E2E and integration testing scenarios for all non-call related signaling between different network entities (MSC, VLR and HLR) which are grouped in the MAP layer.

• Involved in Testing of the PSTN part and Control part for the stack, which is in accordance with the G.964 and G.965 ITU-T recommendations.
• Involved in Testing of the E2E call flow which consists of 16 states into which the whole stack traverses and completes.

Chennai

• Involved in testing of the VT-100 look alike terminal interface for the user to give commands for configuring the equipment, help module.
• Involved in testing of RIP protocol for the router.
• Involved in testing of OSPF, BGP and RIP algorithms for the router.

Chennai

• Involved in testing of the Switching matrix module for the 2mbps and 34mbps add-drop configuration, which is used in the Ring mode.
• Involved in implementing the Network Management framework for the SDH / SONET technology which uses the SNMP v1 functionalities and is compliance with G.784 ITU-T recommendation.
• Involved in the implementation of the mediation device, which has the capability to store the entire information downloaded from the equipment onto the flash memory and then… Show more
• Involved in the implementation of the mediation device, which has the capability to store the entire information downloaded from the equipment onto the flash memory and then delivered it to the host upon request. Show.

Master Of Business Administration - Mba, Management Information Systems And Services, A+

Bachelor Of Engineering - Be, Electrical, Electronics And Communications Engineering, A+