-Service definition tailored for the Wireless Data space i.e. 3G/4G/LTE/HSPA/Wi-Fi.-Service actor definition and scenario/Call flow definition.-Work Order definition.-Change Impact assessment and Implementation.-Network Infrastructure design, test andIntegration.-Launch and support.

-Planned, derived installation, commissioning, integration, tariff distribution of NSN IN (Fujitsu Siemens PW1500, SUNFIRE E6900, SUN BATOKA, SUN T5440).-Co-operated and prepared RSpec for new IN features and ensured the RSpec compliance during installation.-Deployed SCP nodes, Integrated SS7/SIGTRAN signalling links with MSC, HLR, and SGSN.-Ensured proper way troubleshooting of systems health having Solaris/Linux/RedHat OS.-Implemented system configuration and tested Packet Core service covering SGSN, GGSN, PDP Contexts, GTP tunnels, Gb/IuPS, Gn,Gi, Gp,Gr,Ge,CAMEL,Diameter.-Prepared configuration script for Gb/FR/IuPS, BSC/RNC,Blackberry, Roaming, IPSEC,WAP,MMS,IN,VAS service integration and migration.-System configured,service designed, troubleshooting and capacity planning for Data Roaming Service (GRX/IPX).-Executed system configuration, system designed and evaluated supporting infrastructure including DNS/CG/FWSW/BG/Router.-Produced,validated MOPs for Network Operations as part of the Network and Services Implementation and handover process.-Produced technical documentation including design documents, network diagrams and presentations.-Analyzed Core KPI data for technical & management report and developed the technology architecture,road maps for the evolution of existing technology. Projects:-Solaris NSN IN platform migration [from IN@vantage to charge@once] -Solaris VoMS platform upgradation and migration [from VoMS 3.0 to VoMS 3.55]-BlackBerry service [Vendor:RIM,HuaweiRouter.Cisco]-Two NSN Solaris Batoka IN platform deployment (highest capacity 7M BHCA) -Wireless Electronic Money Order Transfer [Vendor: Bangladesh Post Office, Huawei Router]-Wireless POS Machine service [Vendor: Financial Bank, Huawei Router]-International MMS service[Vendor: Logica,Cisco]-Complex Gs,Gy interface deployment [Vendor:Huawei,NSN,Ericsson]-IIG(International Internet Gateway) failover automation [Vendor:Huawei,CISCO]

IN/VAS: - Team leader new system and service deployment on Intelligent Network (IN) and VAS in network.- Guided new team members, resolved technical issues, documented process and provided training to different teams.- Coordinated activities with other groups including Technology Development and Network Operations. - Designed topology, dimensioned capacity with apposite BHCA/TPS planning.- Prepared DNP (Documentation IT Network Planning), TPD (Technical Project Data).- Conducted subscriber migration by network BHCA/TPS design.- Developed maintenance and operating standards.- Generated report on the daily, weekly and monthly usage of services.Packet Core Network (PS):-Planned,designed and supervised complete SGSN,GGSN,CG,DNS,FW,SW,Router Integration and commissioning (Charging, performance, O&M GPRS and UMTS interfaces Gr, Gn/Gp, Gs,Gb,Gi and IuPS) topology for network.-Finalized BoQ for the new SGSN,GGSN,CG,SW,FW,Router or the expansion of existing element.-Configuration management on network elements such as Gn,Gi,Gp,Gb/Fr,APN,IOT,Roaming,Charging,Sigtran.-Explored fault or performance issues on Attach, PDP, Speed, Charging, Call Failures, reachability, QoS, CDR, VPN and quick measure to Implement and validate changes to the network.-Analyzed vendor solutions, maintained interface for issues, updates, roadmap, product life cycle, new releases and integration.-Regularly reviewed Core statistics and performance of KPI’s to identify quality of service issues on nodes.-Prepare ATMN documentation, design NW Topology for multi-vendorintegration (Huawei,NSN,Ericsson).-Performed tests and PAT for new solutions and equipment.Projects:- 3 new IN platform [Vendor: NSN,Huawei SGSN/GGSN]- 2 new IN platform [Vendor: NSN, Huawei SGSN/GGSN]- Packet CoreDeployment [Vendor:Huawei,NSN,Ericsson]- MMS service [Vendor:Acision, Huawei SW]- WAP GW service [Vendor: Acision,Huawei SW]

- Supervised the deployment of NSN PW-900/1500 new IN platform.- Directed cross functional integration with MSC, HLR, VoMS (voucher management system), VAS, IT Billing.- Performed system preliminary acceptance testing (PAT) for service.- Leaded cut over of new IN and prepared final status report. Accomplishments: Promoted to Engineer after two year of service. Gained knowledge on GSM network, MSC (Huawei), HLR (NSN).  Achieved knowledge and experienced on working with CISCO SW, Unix/Linux and Sun Solaris.Projects: 2 new IN platform [Vendor: NSN, PW900] 3 new IN platform [Vendor: NSN, PW1500]