Technical Operations - Ensure the availability of the entire on-site technical infrastructure including core computing (servers), data stores, and networks.Lead the infrastructure management functions including the day-to-day management of associated staff.Own the development, implementation, and execution of Standard Operating Procedures (SOPs)Own and coordinate issue and problem management with other IT teams and Service Delivery ManagersEnforce standards, policies, and procedures pertaining to technical infrastructure managementLead the maintenance of existing systems, and toolsetsProvide technical guidance and recommendations on infrastructure improvements to the IT Production ServicesDevelop and maintain staff work schedules and on-call rotations

Handle network security - incident management for the entire network Security analysis on Windows, Linux, UNIX, and Oracle systemsLiaison security operational affairs with principal at company and the clientProblem solve incident and trouble tickets to maintain SLACollaborate in preparation of Standard Operating Procedure manuals for various technologies involved in manage security services Analyze network intrusion events & implement intrusion detection and prevention measures on production assets using IBM Prevention Network Intrusion Prevention System (IPS)Closely collaborate with the asset vulnerability team periodically to scan with Nessus vulnerability scanner Maintain the proper usage of the internet and bandwidth with Blue Coat proxy for optimum performance and monitoring of usagePrevent spam, and phish blocking; Filter content and check logs for emails quarantined with McAfee Quarantine ManagerMonitor the McAfee policy Orchestrator at the user level network using antivirus, data loss prevention and host intrusion preventionAudit the integrity of desktops and laptops at the user level and generate weekly reports to solve security compliance issues with the central infrastructure team using GFI LANguardPrepare monthly MISLead a six-member team comprising of security analysts.

Network security: Incident management for the Best Buy's corporate and retail networks for over 1000 retail stores in USA, Canada, Mexico and China Daily monitoring and deployment of Security Information Monitoring to support security event correlationsResearch, evaluate, and recommend information security related hardware and softwareWork closely with business units to identify security requirements, using methods that may include risk and business impact assessments.Assist in the coordination and completion of information security operations documentationAssist in the development of security processes and procedures. Develop strategies and plans to enforce security requirements and address identified risks. Identify, select, and implement technical controlsReport residual risk, vulnerabilities, and other security exposures, including misuse of information assets and noncompliance to information security leadershipShift lead handing a team of 4 - 8 members

Implementation of security policies and procedure

Led the planning and execution of “last mile” installation of optical fiber cableInvolved in about 1000 km of optical fiber installation as a sub-contractor for Reliance InfoComm in the state of West Bengal Restored optical fiber links for Reliance, BSNL, and ONGC on various occasionsManaged up to 25 people on a project basis

Implemented Window based network for reputed business organizations in CalcuttaProvide customer service and maintenance of desktops and network at client site