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Tool developer and production deployment engineer, Haskell Communications Pvt Ltd for Telia Sonera (Scandinavia + Baltic States) 4/2013 - current A. Swapping out E/// HLR for Sweden HLR integration, upgrades, Hardware & Functional AT for NT HLR Sweden Data design for NT HLR (mapping of data from E/// HLR to NT HLR TPD) Integration of all FE of HLR with NetAct for performing various Alarm, configuration and performance management Support of integration of Huawei\'s provisioning system (CPL) with NDS and NT HLR Support of integration and end-to-end testing of the \"IMSI Change Over\" (ICO) feature (Telia Sonera Sweden is a pilot customer for seamless ICO) Preparation and execution of the migration from E/// HLR to NT HLR Stabilizing B. Care Activity Performed various mass modifications of live subscribers. ? LBO Mass modification in TS Finland ? EU roam migration in TS Finland ? OCFI mass modification in TS Finland ? EU Regulation mass provisioning in TS Sweden CCC mass modification in Finland C. BE-DS expansion on HP hardware C7000. BE-DS installation, integration, Hardware setup, functional AT, Regression test, Subscriber relocation on HP hardware in Telia Sonera Sweden. D. Netact report creation & integration in NAC 8/15 Integrated generic agent node in Netact monitor and created report for NDS, HSS and HLR nodes. E. Development and Manual testing and deployment Activity in production site 1. EIR migration Tool This tool is using to migrate date from ACISION EIR to Nokia EIR for 40 million IMEIs data. This Tool has three parts. Migration part, which used to migrate data from E// to Nokia EIR. Delta tool, Migrate if any delta data left. Consistency check tool, this tool checked consistency between both databases. 2. Workaround tool for CFD issue CFD tool refers to the fault raised by TeliaSonera with regards to default call forwarding modifications. It was observed under certain conditions, the changes in the DCF were not propagated to the VLR. This resulted in inconsistencies in the network functions. The tool has been developed to identify such scenarios and trigger a change in order to notify the VLR. F. NT HLR/HSS Upgrade for Telia Sonera Node - NT- HLR/HSS, based on One-NDS (Network Directory Server) architecture and runs on SUN servers and Solaris. Installation & Integration of HLR/HSS Front End with the common network database of Telia Sonera which includes Software upgrade, ILOM configuration, NSR data configuration/diameter/IMS and verification, Application extension package and hotfixes installation.