• Preparing HLD (High-level Design), LLD (Low Level Design) for deploying secure, scalable IP network solutions as per project requirements.• Configuring network devices such as Next Generation Firewall, Intrusion Detection System, DDoS Protection Systems, Security Management Controller, High-Tech Enterprise Grade Routers and Data Center-Class Switches.• Preparing and executing MOP (Method of Implementation) approved by customers for existing or newly deployed IP networks.• Defining, Scheduling project work and lead technical team accordingly to achieve project goal within timeline.• Handling incidents take place in medium or large IP network, do troubleshooting protocols such as BGP, MPLS, OSPF, Firewall Inter-zone accessibility Switching technologies in cross vendor environment and restore services at earliest as per SLA (Service level Agreement).• Conduct training for sub-contractor resources to do industry standard hardware installation and commissioning of IP network devices.• Perform PAT (Preliminary Acceptance Test) and cooperate project stakeholders to get PAC (preliminary Acceptance Certificate) upon completion of project.

Accomplishment:• Confidently provide 1st level technical support to local and international carriers for fulfilment of SLA (Service Legal Agreements);• Periodically Operate and maintain Core network, Soft switch, Billing server, Media Gateway and Controller, Transmission MUX for optimum performance;• Consistently oversee all critical, major, minor, warning alarms of all network elements and took action according to problem severity;• Successfully identified and diagnosed VOIP calls fault using industry standard tools;• Altered carriers and suppliers assigned IP, route plan, technical details as per management request and also maintained documentation accordingly;• Configured Soft Switch and route plane for provisioning carriers;• Configured CISCO router and switches like assigning IP, configuring protocol, ACL, etc.; • Carried out schedule call test and other procedures to check voice quality;• Hourly checked performance measurement like call attempts, concurrent call, ASR, KPI, ACD, FCR, trunk route congestion of incoming & outgoing traffics and also monitored bandwidth consumption using MRTG and PRTG;• Pulled together five cross functional departments and more than six ICX, four Vendors and mobile operators as well to assure quality of service;

Responsibilities• Collaborated with team members to provide technical support, including procedural documentation and relevant reports; • Installed and configured computer systems and networks such as LAN, WAN etc.; • Analyzed hardware/software faults and solve technical and applications problems;• Incorporated forty PCs into BRAC University domain along with new IP range and installed new operating system with recommended software;• Setting up new users' accounts and profiles and dealing with user credentials related issues;