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Senior Software Engineer Resume

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SUMMARY:

  • Having 9 plus years of experience in QA, automation, integration and deployment of various telecom applications.
  • Having 4 plus years of QA experience in development of Test Plans and Test Cases by Reviewing the Technical Requirements and Use cases
  • Excellent knowledge on Openstack, Virtualization, Dockers, Orchestration, Scalability
  • Strong experience on SDN controllers, Open flow 1.3, Open vSwitch, Mininet.
  • Openstack deployment, cloud verification, performance benchmarking and profiling used Rally, task configuration using YAML.
  • Having strong experience on L2/L3 and TCP/IP protocol stack.
  • Hands on experience in Python Automaton tools, Ansible, Pytest,Netmiko and NAPLAM, NxAPI for Networking Automation, SOAP UI, JSON mapping.
  • Extensively worked on Jenkins for continuous integration and for End - to-End automation for all build and deployments.
  • Experience with creating and publishing Docker containers.
  • Used build utilities like MAVEN for building of jar, war and ear files
  • Experience with Installation, Configurations, maintenance and support on OpenStack, OpenStack services (Nova, Neutron, Swift, Keystone, Glance. Automate all the Openstack installations and configurations via Ansible and Chef Automation
  • Having strong experience on various protocols and technologies VoLTE, IMS(I/S/P-CSCF),VOIP, SIP, H323,SDP,RTP, RTCP, DIAMETER, PCRF, PCEF and HSS.
  • Strong working experience on SIP, SDP, H.323, RTP, DIAMETER, TCP/IP protocols.
  • Agile test planning and execution involved in Acceptance,Santiy,Regression, Continuous Integration, Functional and Service and Performance tests
  • Having integration and deployment experience on HSS and LTE/IMS with 4G Network.
  • Having working experience on DIAMETER interfaces Sh, Cx, Gx, S6a, Mw and S11.
  • Worked for CAMIANT (Oracle) policy servers and Band width on Demand, Quota functionality.
  • Compliance to the process as per 3GPP specifications for DIAMETER and IMS interfaces.
  • Having working experience on Cisco Unified communication manager (CUCM).
  • Worked on SIP Call Flows /Registrations with Proxy, B2BUA and High Availability.
  • Executed and validated basic and supplementary feature call flows using SIPP, Spectra2, GBL and Seagull tools
  • Good Understanding of all phases of Software Development Life Cycle (SDLC) and Software Test Life Cycle (STLC).

TECHNICAL SKILLS:

Telecom: VOIP, SIP, H323, SDP, RTP, RTCP, IMS, VoLTE, TCP/IP, ISUP, SS7, PCRF, PCEF, RADIUS, DIAMETER, Gx, Sh, Cx, S13, S6a interface and SDN/NFV

OS: LINUX, WINDOWS 9X/2000/XP

Databases: MySQL

Tools: Git,Svn,SOAP UI,JIRA,Jmeter

Platform: ConnexIP(Sonus Network),ATCA

Languages: PYTHON,PERL and Shell

IDE: Pycharm,Eclipse

PROFESSIONAL EXPERIENCE:

Confidential

Technical Lead

Tools: Spectra2, SIPP, SEAGULL, ATS Framework Python, Citrix and JIRA.

Responsibilities:
  • Automated test cases using python and integrated them into the Avaya Test framework.
  • Integration, implementation and testing of virtual SBCs into a new cloud based network solution
  • Worked on OpenStack services such as Nova, Neutron, Swift, Ceilometer, Horizon, Glance, Keystone, Orchestration and Cinder
  • Integration, implementation and testing of virtual SBCs into a Mirantis openstack based network solution.
  • Working on Automation and System configuration Management using Ansible and Python.
  • Integration and deploying the SDN controllers(newtron) using Ansible
  • Using Rally and Tempest to test performance benchmarking of Openstack deployment, cloud verification.
  • Validated various SBC features and basic scenarios using SIP, H.323 signaling protocols and simulated scenarios using sipp, spectra-II tools.
  • Provided trainings and knowledge share on application being integrated.

Project Description: SBCE feature Integration, solution implementation and deployment in Enterprise network of Dell Software and AT&T, SBCE integrated with CM and SM, SBCE offers OAM integration via EMS.Developed the Automated test suite for SBC product.

Confidential

Technical Lead

Tools: Spectra2, SIPP, SEAGULL, Citrix and JIRA.

Responsibilities:
  • Integration of HSS-FE with the S6a, Cx, Sh and SOAP interface.
  • Prepared Cx and Sh interface test scenarios as per 3GPP specification standards.
  • Involved in Acceptance scenarios and execution with customer.
  • Creation of NSR data in HSS as per various customer requirements
  • Taking traces on HSS for various issue IMS registration, TPR issues and calls.
  • Simulated SOAP interface scenarios with SOAP UI tool.
  • Simulated DIAMETER Cx and Sh interface scenarios with the SEAGULL simulator.
  • Preparing MOPs and Use case for customer as per customer requirement.
  • Executed performance testing with using seagull simulator.
  • Performed CPU and Memory overload with different threshold levels with using shell scripts.
  • Involved in KPI analysis on various scenarios in fixed network.

Project Description: HSS-FE solution implementation and deployment in fixed network of Deutsche Telecom, HSS-FE integrated with IMS-Core, M-TAS and One-NDS.HSS-FE deployed on ATCA Chassis with Sandy bridge cards hardware. HSS-FE offers OAM integration via CMS.

Confidential

Technical Leader

Tools: Spectra2, SIPP, ATS Framework (PYTHON), Citrix.

Responsibilities:
  • Executed various scenarios between P/I/S-CSCF and HSS.
  • Involved in execution and configuration of end to end setup with the LTE/IMS network.
  • Integrated HSS with various interface of Cx, Sh, S6a and S13.
  • Involved in execution of acceptance testing between MME, IMS and HSS at various Sites.
  • Involved in provisioning for subscriber and service data using SPML scripts.

Project Description: HSS solution implementation with the LTE/IMS mobile network of Reliance JIO 4G network. HSS backend as One-NDS is used as a centralized subscriber data repository in the distributed architecture, it stores subscriber and service data, One-NDS is offered as repository for HSS, NT-HLR, and One-EIR, other future application can also be hosted over One-NDS like One-MNP, PCRF and One-AAA etc.

Confidential

Senior Software Engineer

Tools: Spectra2, SIPP, GBL, ATS Framework, POLYCOM Phones, Kapanga soft phone and JIRA.

Responsibilities:
  • Built the Openstack distributed setup from scratch for system testing of SBC on cloud Administration of the Openstack cloud in the lab.
  • Automation support for incorporating Openstack CLI commands in companywide automation framework.
  • Instantiating, configuring and managing security and access of virtual machines on Openstack cloud
  • Developed the automation scripts for running around 1000 cases to test the gateway to gateway protocol between SBC and Legacy network border switch on a complicated setup.
  • Performed load testing with SIPP and Spectra-2 tools.
  • Involved in performing Sanity and regression on end to end setup.
  • NBS5200 is Sonus Network’s next-generation hardware and software platform for SBC applications, and is intended to enable and support a wide variety of packet-to-packet applications.
  • The NBS-5200 integrates transcoding and media interworking with native support for IPv6, it combines full SBC functionality, including media interworking, advanced routing and policy engine SIP and H323 calls.
  • NBS5200 can be deployed into access and peering mode.
  • Sonus NBS5200 product tested using SIP and H.323 Protocol on various features using standalone NBS5200 setup and also tested NBS5200 interworking with NBS9K as GW using Sonus GW-GW proprietary interface and Tested C4 interop features and executed customer scenarios.

Confidential

Senior Software Engineer

Tools: Ethereal, Diameter simulator, bugzilla and J-Unit

Responsibilities:
  • Simulated various scenarios using SEAGULL simulator.
  • Upgrades and Fresh Installations and configure servers (Intel Mullins)
  • Communicate project status, issues and risks to client
  • Have actively participated in reviewing feature requirement.
  • Camiant's Multimedia Policy Engine empowers broadband service providers to dynamically manage their networks, ensuring efficient, high quality delivery of broadband data services.
  • Camiant's policy control solution compliant with 3GPP's Release 8 Policy and Charging Rules Function (PCRF).
  • To Implement the Quota functionality feature on Online Charging server (OCS) and the diameter interface to PCEF.
  • Camiant’s MPE will perform policy control in the LTE network for Internet Data, IMS and non IMS based services. In addition, Camiant’s MPE will also be the PCRF for all IMS based services over the existing 3G network.

Confidential

Software Engineer

Tools: Ethereal, Hurricane, clarify, quality center, Nortel IP Phones 200X series, 1120E, 1140E, 1150E.

Responsibilities:
  • Travelled to onsite to carry out the CVM13 release execution.
  • Troubleshooting Servers in lab
  • Communicate status, issues and risks to client
  • Have actively participated in reviewing and preparing the HLD, and test strategy
  • Involved as a SME for knowledge Transfer.
  • Nortel CHS H.323 and SIP lines (SSL) Product verification did with H.323 and SIP the application layer signaling protocol.
  • IOT integrated between Nortel Signaling Gateways like BCM and CS1K and also 3rd party Gateways like CISCO 3600, CISCO 3700 families and CUCM 4.1 release, Westell and One access Gateways are tested with H.323 protocol.
  • Verified supplementary features and basic call features. Also executed the interworking between CICM, SIP lines and various trunks like PRI, ISUP and SIP-T.
  • Centrex IP is a network based VoIP application and it is based on Nortel Networks Succession switch architecture.
  • Centrex IP acts as a signaling proxy between the CS2K Gateway Controller (GWC) and UNISTIM VOIP clients. All RTP media streams bypass CICM completely.

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