Engineer - ITC NetworksSeptembre 2014 - Décembre 2014
Customer Support Engineer - Tier 4 Level Support within an IT outsourcing company for the telecommunications industry.
Working with Customer Reported Defects in order to give the best solution to the customer issues.
Deciding if the issues discovered by the customers are bugs or if it is a configuration or a documentation issue.
Raising bugs based on the Customer Reported Defects.
Creating reports and statistics based on the customer bugs, identifying areas where bugs are more likely to occur and implementing preventing actions in order for bugs to stop appearing in the next releases.
Creating and updating test scenarios in order to include the customer found defects.
Executing exploratory testing around the client issues.
Communicating with Tier 3 team in order to be up to date with the solution delivered to the client.
Communicating with the Development team, Testing team and Service Pack team to find the best solution for the client issues.
Software Testing Engineer - ITC NetworksDécembre 2008 - Avril 2009
Software Testing Engineer within an IT outsourcing company for the telecommunications industry.
Testing of an IP Flow Manager software on both platforms Linux and Windows, which picks statistics from Layer 3 switches.
Working with IPFix Protocol, configuring community strings SNMPv1, SNMPv3, creating test plans, packet capture, using JDM regarding the configuration of specific devices, using the Colasoft packet generator.
Using Trap Sender tool, Mib Browser, discovering the network and monitoring devices by means of traps and events for Device Knowledge Pack project.The IP Flow Manager works with IPFix Protocol and data is exported to a collector. The IPFM software picks statistics from devices (ERS5500, 5600, 8300, 8600) like: type of protocols, subnets, hosts, conversations, hosts, applications, traffic thresholds and performance, packet capture, device performance.
Providing device support and developing a solution to add new device support for Visualization Performance and Fault Manager.
Working with HP – Open View Software on a network discovery application, troubleshooting, collecting performance, reporting.
Telecommunications engineer - Cosmote RMTAvril 2007 - Décembre 2008
Telecommunications Engineer for a Mobile/Wireless telecommunications operator.
Creating daily and weekly voice traffic reports: monitoring route traffic (MSS-MGW, MSC-BSC, TRC) and destinations (TRDs), traffic prediction, modifying route capacity, finding solutions regarding to optimal network use, which should not exceed a previously stated value (splits, upgrades, downgrades, routing based on percentages, creating overflow routes), load sharing of traffic on routes with other operators.
Calculating postpaid or prepaid traffic per HLR or VLR subscriber.
Monitoring performance parameters (ASR, Network Congestion, CPU Load, Intra and Inter MSC Hand Over, Number of Calls), parameter specific counter analysis, creating and updating documentation (signaling and routing plans), network diagrams, updating of B-Number analysis files.
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