Lead Test Engineer
Three
Total des années d'expérience :19 years, 3 Mois
Technical Support Engineer
• Responsible for providing vendor’s level-1 support on any reported issue
• Responsible for troubleshooting, analyzing, providing resolution for any reported issue
• Hands on experience in troubleshooting faults and issues
• Responsible for chairing ticket review meetings with some of the key accounts
• Strong experience in dealing with other internal teams like Level-2, sustaining and R&D in order to fix any reported issue within SLA
• Responsible for generating and running test cases from the CA Check list against newly released software versions
Professional Service Delivery Engineer (May 2012 - Dec 2013)
• Responsible for generating Solution Design document to deploy network elements in most efficient and effective way
• Responsible for generating requirements gathering documents
• Responsible for Deployment, Installation and Commissioning of Sandvine Equipment and Solution in Customer network
• Supporting customer in Operational Acceptance and Readiness Testing
• Hands on experience in developing policy code for subscriber mapping and enforcement
• Lead, guide and support new team members
O2-UK Fair Usage Solution (DPI) - Onsite Support (Customer Facing)
• Providing onsite and 2nd level vendor support on Sandvine's DPI (Deep Packet Inspection) solution
• Working closely with customer's operations team in monitoring and resolving issues
• Responsible for reviewing release notes in order to suggest customer for maintenance upgrade
• Responsible for analyzing, troubleshooting and implementing fix for any reported issue
• Responsible for providing updates, status reports and milestone achievements to different external teams in customer network
• Strong understanding of Mobile Circuit Switch and Mobile Packet Switch protocols in 2G and 3G environment.
• Responsible for providing pro-active support to HVA/Tier-1 customers on Geo-Probes network service assurance system
• Analysis of GSM (Intelligent Network, MAP, CAMEL, ISUP), GPRS, UMTS (CS & PS) and IP (SIP, RADIUS, H248) protocols to identify performance issues and bottlenecks in Tektronix Geo-Probe system
• Detailed analysis of all protocols involved in a particular call flow to identify State Machine Aborts or errors in sequence of messages that results in call failures via Tektronix Application
• Detailed protocol analysis via different forms of traces for the root cause analysis of all reported issues.
• Providing suggestions to customer support team to aid in resolving the identified issues
• Responsible for maintenance of system health of Tektronix’s Next Generation Products in terms of disk utilizations, availability and any other errors
• Responsible for providing first and second level of support to customer in Manage Service Environment
• Responsible for providing initial response for customer queries and concerns
• Responsible for providing initial analysis to any issues or alarms received by NOC team
• Responsible for providing onsite support for MMSC platform
• Hands on experience in troubleshooting MMS issues on SGSN, GGSN and MMSC platforms
• Hands on experience in troubleshooting issues related to MMSC service, using different log files and LDAP DB
• Wrote scripts for daily checks and daily reporting
• Hands on experience in using BMC Remedy Tool for issue reporting and tracking
• Responsible for generating test plans for Surepay platform testing
• Responsible for writing test cases for the core functionality from the HLD and LLD documentation
• Responsible for keeping Surepay Requirement Tractability Matrix document up to date
• Hands on experience in executing test cases on Surepay platform
• Hands on experience in using MGTS simulation tool
• Hands on experience in using HP Quality Centre
• Responsible for functional testing of Audio Conferencing solution based on SIP protocol and Java over Linux
• Member of team responsible for 2nd and 3rd level support after successful deployment of Linux based Audio Conferencing VoIP platform using SIP.
• Commissioning, integration and configuration of Radisys CMS 9000 media server
• Responsible for firmware upgrade and media file configuration on CMS 9000
• Proficient in writing user level scripting in bash and Perl
• Hands on experience in system and functional testing of SIP based conference calling application
• Hands on experience in testing the web console using Selenium
• Responsible for writing the Test Plan and Test Case document
• Responsible for complete system and functional testing of SIP based conference calling application
• Part of the team responsible for performing Load and Stress testing
• Responsible for the bug reporting in bugzilla, JIRA and RIMS
Working on TMobile UK’s Next Generation Intelligent Network project swap project as team lead managing team of 4 people
Providing support on the NG-IN platforms, v1.1 PPS v 7.6.2, @vantage Commander v9.0, Service Creation Environment v7.6.2 during the pre, acceptance and pilot testing phases
Providing hands on training to Customer’s staff for the better understanding of platforms
Responsible for the Site Acceptance/Hardware testing for both, Live and Test sites
Commissioning and Integration of NGIN Platforms with TMUK Network.
Performance analysis of newly commissioned platforms.
Analysis of SS7 messages at TCAP, SCCP, MAP, INAP, CAMEL Phase 2&3
Worked as IN planning Team Lead.
Part of the team responsible for the requirement specification, RFI, RFP & vendor finalization phases of projects
Part of the team responsible for the solution designing of services related to Intelligent Networks
Responsible for managing projects of different magnitude from Technical perspective
Writing R-Specs and testing documents for different projects.
Responsible for reviewing different documents generated during the project life cycle
Negotiations with the vendor for any new product/project
Responsible for the planning of overall prepaid network that includes Intelligent Network platforms, IVRs, Voucher recharging solution and other entities
Responsible for the capacity management in the prepaid network
Responsible for the subscriber migrations from one platform to other for optimized performance
Responsible for the migration of Service platforms onto the latest software version
Responsible for the subscriber behavior analysis for the configuration of IN platforms to get maximum performance
Planning the up-gradation of IN platforms to new service version of IN platforms to Charge@once 1.1 & Select@Once
Analyzed the pros and cons of using Diameter for the integration of new servers against vendor proprietary Interface.
Analysis and generation of Performance statistics reports of different entities
Responsible for the capacity management on IN and VoMS platforms.
Responsible for the optimization of performance of IN platforms by obtaining data from SPOTS
Performed the regression and acceptance testing for different bundling features.
Provide suggestions to commercial departments over new services and features
Perform subscriber migration from one IN platform to other IN platform
Performance Monitoring on INs using @COM PM Tool
SS7 Links creation and management
Acceptance and Regression testing for the new patches, upgrades and new services
Events / Alarm Monitoring using @COM Event Manager
Number creations/recreations/ deletions on IN
Daily and Weekly Reports of SS7 link status
Database definition for new entities in the Network.
Troubleshooting different issues and problems on IN platform
Raising and flowing up of problems / alarms with vendor according to severity.
Backing up IN data after regular intervals
Planning and arranging necessary resources for the all the activities
FnF (Friends n Family / Favorite number), home zone, favorite Area, Different tariff packages, Credit Once (Customized Feature), Happy Hour (Customized Feature), Discount Per Usage (Customized Feature), Bonus Accounts requiring promotional vouchers (Customized Feature)
PPC, GPRS Charging of prepaid, Voice Mail, Location base services, Close User Groups (VPN)
NTS: UAN, Free Phone, Premium Rate service, MNP
eSG Recharge Service: Offline Recharging service, Online Recharging service
Projects
Customer Support
International Outbound Pre Paid Roaming
Commissioning & Integration of new IN platform
Commercial Launch of Happy Hour Feature
Voucher Recharging System Expansion to Distributed Architecture