Valere F.

Experience

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  MTN

  Jan 2013 - Jan 2016

  System Administrator

  • Provide 24/7 support in Production Testing and Development environments.• Install and configure samba server on Solaris 10 and mapping to windows 2008 server.• Maintained Windows Servers 2008, 2008 R2 administration created User Accounts and Groups in Active Directory (AD) as required after gaining required approvals. Managing Active directory, DNS, WINS and DHCP Servers. • Installed the Windows 2003/2008 R2 Servers in the organization with over 500 clients• Implement advance disk configuration such RAID 0, 1 & 5 using Linux Software RAID program.• Monitoring of web servers using Nagios monitoring tool.• Implementation of package management and LVM management.• Monitor security logs to determine security problems.• Account Lockouts Configuring Password Policies. Configuring and managing Domain Naming System (DNS). • Updating Security patches for Operating system and all other Applications.• Used bash, awk, sed and Perl to automate most of the daily activities like log monitoring, log rotation and purging, proactive systems monitoring including disk error detection Show less

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  Trinitech Consulting Inc

  Jan 2016 - Aug 2019

  Unix Linux System Administrator

  • SCCM, WSUS implementations. Implemented enterprise Windows Patching Management solution for the organization of 400+ servers. • Tested and approved distribution of windows patches to all Windows system, using WSUS (Windows System Update Services). • Managed and installed patches for all Windows servers and desktops within the enterprise environment.• Disk management, and implementation of RAID levels using parted and Fdisk.• Diagnosed and resolved problems associated with DNS, DHCP, NFS and Apache.• Managing KVM on RHEL 6 using the virsh Command-line Tool• Maintain and leverage Configuration/Systems Management tools such as Ansible, Puppet, AWS Management Tools.• Experienced with inter networking using TCP/IP and maintaining network Installed antivirus applications, uninstalled obsolete applications, and deleted system junk files. Show less

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  Cognizant

  Sept 2019 - now

  Linux/Windows System Admin

  • Create automation to assist in infrastructure provisioning, L3 support and capacity management.• Works with capacity planning team to evaluate and tune system performance and right size virtual and physical servers.• Implementing Server setup, configuration & administration for Windows 2012, 2016 Servers build, migrations and patching.• Built more than 100+ ESXi Servers as well as 1500 plus VM’s Windows servers mainly 2008, 2008 R2, 2012 and 2016 Servers.• Migration done from vSphere 5.5 to 6.5 ESXi and Vcenter with new Datastore.Built Linux VMs from scratch and troubleshoot as well when needed. Show less

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  Microsoft

  Nov 2020 - now

  Azure Cloud Support Engineer

  • Accountable of providing an outstanding technical Support experience to Microsoft Business Customers.• Experience in Ubuntu Linux servers• Deploy internal application software updates in multiple environments, from Development to Production, per established Change Control process.• Complete knowledge in windows administration.• Own and Manage cases over the phone and web from problem Identification to full resolution.• Support Azure Virtual Machines (IaaS), VMware, Hyper-V.• Troubleshoot Customer IaaS issues (Can’t RDP-SSH, VM performance, Unexpected restart, VM Agent and Extensions, VM Scale Set and Networking)• Deploy VMs using PowerShell, JSON, CLI and Rest API• Provide Recommendations for Customers Subscriptions.• Migrate Azure ASM to ARM, Storage Account and move ARM Resources• Convert Unmanaged VMs to managed VMs• Create snapshots on crashed VMs disks and attach it on rescue VMs. Show less