S. Sachin Sunder Email & Phone Number

Mountain View, Ca, Us

Mountain View, Ca, Us

Building tools, infrastructure and strategy to help Engineers test Google Voice and Meet.

Chandler, Arizona, Us

- Overhauled test automation scripts and added ability to create workflows in regression by building Python modules.- Developed pipelines in Jenkins for running automated tests that reduced regression run time by 30%.- Introduced installation automation in our Next-Generation 911 products that reduced installation time by 95%. - Created HTTP Server simulator based on flask python module which can be configured through JSON configuration.- Refactored and packaged Java-based MSRP simulator using Gitlab CI which made it easy to deploy, use and share.- Built Grafana and Splunk dashboards for better visualization and analysis of results from performance tests.

Chandler, Arizona, Us

- Independently developed MSRP stack (RFC 4975) for testing protocol conformance and automating tests.- Tested NG-911 products and was one of person who got appreciation for successful deployment in State of Washington.- Migrated the core automation script into python libraries using object-oriented approach for scalability.- Tested reporting tool built on Splunk for generating various stats of calls handled by our ESINet.- Contributed in improvement of our Web GUI automation framework built over Selenium.

Boston, Massachusetts, Us

Course: Linux for Network EngineersProfessor: James Jones Jr- Responsible for Creating assignments for the students to teach them about bash scripting and different Linux distributions like CentOS, Solaris and RHEL.- Clarified queries from students in understanding the Linux systems, commands, scripting and installation of perl modules.

Burlington, Massachusetts, Us

- Installed and Integrated Wireless Access Gateway in multiple test beds for testing with test-tools and real clients.- Automated the build install procedure using modular approach to make scripts scalable, easy to use and easy to install.- Prepared test cases and tested private builds for developers in integrated setup.- Integrated and delivered a Proof-of-Concept WiFi solution for small business which was demoed successfully to customer.- Created and integrated multiple Virtual Machines for testing of WAG.- Created IP fragment, DHCP, ARP-over-GRE and UDP streams from scratch on IXnetwork.- Provided support for on-site system engineers for debugging issues.- Filed, tracked and closed issues in JIRA.

Boston, Massachusetts, Us

Course: Linux for Network EngineersProfessor: James Jones Jr- Created assignments for the students to teach them about bash scripting and different Linux distributions like CentOS, Solaris and RHEL.- Designed academic projects for students so that students get some expertise on configuration automation and scripting.- Clarified queries from students in understanding the Linux systems, commands and scripting.

Navi Mumbai, Maharashtra, In

Reliance Jio Infocomm Ltd. is a 4G data & voice service provider in India. T&D unit (Formerly Rancore Technologies Pvt. Ltd. merged with RJIL in 2013) is responsible for Quality and Assurance of IMS, EPC and customer equipment.Department: IP Multimedia SubsystemKey Role: Validation of IMS Core & services network- Provided technical support for IMS in the event “4G in India by RJIL” in GTI Summit in MWC’14, Barcelona.- Tested and validated SIP/DIAMETER/HTTP interfaces and high-availability on IMS core nodes and charging system.- Validated SIP/DIAMETER interfaces over IPv6/SCTP of in-house developed IMS Core nodes.- Validated a comprehensive list of services on IMS network including Conference, Emergency call, MMTel service with dedicated bearer setup using Rx interface.- Managed connectivity between all IMS core nodes and DRA (DIAMETER Routing Agent) for integration with EPC.- Corrected messages exchanged over Rx interface from PCSCF, as a part of team which successfully improved voice and video quality of IMS call on dedicated bearer.- Led the task of high-availability & performance testing of IMS core nodes over IPv6/SCTP.- Overhauled the Performance testing process by introducing bash scripts to automate the setup and analysis process. The extensive manual task was successfully reduced to a one or two click tasks.- Automated basic testing of P-CSCF node by building comprehensive list of test cases on EXFO QA900 tool.- Managed the details all IMS nodes integrated to DRA, this included multiple IMS setups in lab environment. Responsible for any additions or modifications in them.- Worked with multiple vendors such as Tekelec & IXIA during validation of IMS core nodes.- Assessed the junior members in team regarding their understanding of IMS architecture, IMS call flows, Linux and EXFO tool.- Prepared a comprehensive list of test-cases for high-availability testing of IMS core nodes.

Mumbai, In

Rancore Technologies Pvt. Ltd. (Now merged with RJIL in 2013) was responsible for development of in-house IMS products and validation of IMS, EPC and customer equipment.Department: IP Multimedia SubsystemKey Role: Validation of Charging System & IMS Core- Tested and validated SIP/DIAMETER/HTTP interfaces on in-house developed IMS core nodes and charging system on COTS and ATCA servers, which were integrated with the pilot trial network.- Led the task of successfully integrating IMS nodes on IPv6/SCTP and with EPC for the first time in lab environment. Successfully performed the first IMS call over IPv6/SCTP in our lab.- Administered Regression testing of IMS core nodes over IPv6/SCTP.- Performed Regression, Feature, High-availability & Performance testing of in-house developed PCSCF.- Suggested improved bash scripts in-house developed PCSCF for better log rotation and system configuration.- Worked with multiple telecom vendors during inter-operability testing of IMS core nodes with clients and other network elements.- Successfully performed High-availability testing of IMS core nodes in pilot trial setup.

Master Of Science (M.S.), Telecommunication Systems Management

Bachelor Of Technology (Btech), Electronics & Telecommunication Engineering