Sumit Tiwari

Experience

• 

  NCR Corporation

  Dec 2004 - Mar 2009

  Customer Support Engineer

  ▪ Manage the IT infrastructure of the customer consisting of NCR UNIX SVR4 MP-RAS for MICR cheque processing center.▪ Manage UNIX & NCR applications service delivery as per the agreed contractual terms to meet/exceed the agreed service levels.▪ Server’s administration on NCR UNIX SVR4 MP-RAS platform. OS installation, configuration, volume management, Package & patch administration. Regular Backup & Restore on the need basis.▪ User/Group Account Management, File Permissions Handling.▪ System Security management▪ Performance monitoring▪ Shell scripting for customized reports as per client request.▪ Deploying and Managing Self Service Terminals, Cheque Mark Application & Web Enabled Kiosk. Show less

• 

  Syntel

  Mar 2009 - Dec 2010

  Unix Administrator

  ▪ Key role in Remote Server Deployment under Infrastructure Management Service Team.▪ End-to-End Server deployment on UNIX (Solaris 10) platform within defined SLA.▪ Provisioning servers using VERITAS Volume Manager, ZFS, Zones, VERITAS NetBackup etc.▪ Provisioning of various applications and software on sun servers (Oracle 10G, DB2, WebSphere & MQM).

• 

  Fiserv

  Jan 2011 - Sept 2014

  Lead - Systems

  ▪ Key role in Server Administration, Deployment, Configuration and Technology refresh.▪ Engagement with various business units to raise, review and Monitor Incident, Problem, Changes, Service and Audit requests as appropriate.▪ Performance Monitoring and Capacity Planning.▪ 24/7 Support for Production, Certification, QA and Development Environment under the ITILframework.▪ OS Patching and Upgrades using Oracle Solaris Live Upgrade.▪ EMC Storage Array Migration as part of tech refreshes▪ Performance Monitoring and Capacity Planning.▪ Managing Solaris virtual environment: LDOMS, Zones and resource management.▪ Administration of VERITAS Volume Manager and Cluster Server.▪ Managing Red Hat systems, provisioning volumes using LVM and VXVM.▪ Managing EMC PowerPath, Symark Powerbroker, CA Unicenter, eTrust Access Control, Root Kit Hunter and Tripwire.▪ Task automation for Daily Health Check, Filesystems usage, Hardware checks, resources monitoring and other system monitoring using Shell scripts.▪ Service fulfillment for PCI audit requests and CIS hardening. Show less

• 

  _VOIS

  Sept 2014 - now

  Designation: Senior Manager • To design, build, implement and operate 24x7 Public Cloud infrastructure services mainly into the AWS & GCP technology solutions for European wide internal applications and customers .• To constantly analyze, optimize, migrate and transform the legacy IT infrastructure environment into cloud ready & cloud native solutions.• Managing L2 and L3 level incident and problem management.• Manage project driven automation & integration and day-to-day administration of cloud solutions.• Conduct peer reviews and maintain coding standards.• Providing professional technical consultancy to migrate and transform existing on-premises applications to public cloud and support to all Cloud-related programs.• Train and develop AWS & GCP competency within the organization.• Support the establishment of DevOps culture and methodologies within the organization. Show less ▪ SME & lead role in UNIX (Oracle Solaris) & Linux Server Administration, Configuration, Consolidation and Migration projects.▪ Managed Evergreen projects for migration of physical servers to virtual environment.▪ Managing patching and vulnerability management activities to ensure systems running with latest patch and firmware level by leveraging Oracle Solaris Live Upgrade.▪ Planning and execution of Host based storage migration.▪ VCS cluster upgrade and maintenance.▪ End to end responsibility for driving problem investigation via engaging all the related stakeholders and vendors for RCA and permanent fix.▪ Review the technical plan of all the changes to ensure quality and error free execution.▪ Identifying areas for automation and do the needful through shell scripting in order to reduce manual efforts.▪ Performance monitoring and capacity planning in order to ensure system readiness well in advance.▪ Analyzing recurring issues and providing permanent solutions to avoid reoccurrence of the incidents.• Key role under DC Optimization project to consolidate and optimize the IT footprint used by local markets. Show less

  • Sr. Cloud Architect

    Sept 2023 - now

  • Cloud Architect

    Jan 2019 - Aug 2023

  • Manager - Systems

    Sept 2014 - Jan 2019