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Senior System Administrator Resume

SUMMARY

  • Enthusiastic and self - motivated Network Engineer with 6 years of hands-on experience in Networking and security, including network support installation, analysis for a broad range of LAN/WAN/MAN communication systems.
  • In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse and proxy ARP, Ping concept.
  • Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP Ether channel, STP and RSTP.
  • Experienced in configuring DNS, DHCP, NFS, NTP, SSH, HTTP.
  • Experience in Cisco: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay & MPLS), Routing protocol configurations (RIP, EIGRP, OSPF, and BGP).
  • Adept in handling network monitoring tools and testing, vulnerability assessment (VA) and security auditing using Wire shark.
  • Managed inventory of all network hardware, Management and Monitoring by use of SSH, SNMP, NTP, NAT, PAT and dealt with the DOS attacks.
  • Experience with Aruba’s wireless systems and management tools
  • Configure VRRP & GLBP and VLAN Trunking 802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
  • Good Understanding of Python scripts for system automation, monitoring and security reporting.
  • Managing and configuring Cisco Switches, Cisco Access Points and Routers & SDWAN.
  • Lab deployment of vCloud Suits of Products.
  • Work with compliance and information security teams to understand reported vulnerability and plan remediation
  • Worked in building new Azure Infrastructure: Planning, design, architecture, implement.
  • Created new Resource groups, Virtual Machines, in Azure Cloud.
  • Implement and support new and existing customers on Microsoft Azure infrastructure and Microsoft IaaS
  • Created clusters on IIS web servers using Network load balancing and managed net scale clusters including configuring clusters in global traffic management.
  • Worked on SQL server 2005/2008, creating the databases, roles, security, writing queries, setting up SQL mirroring, running SQL jobs and troubleshooting connectivity and network related issues.
  • Worked on backups, restores, troubleshooting SQL server connectivity failure issues from middle tier, troubleshooting SQL database locking, and blocking issues.
  • Documentation of installation guides during platform upgrades and application migrations.
  • Involved in designing Platform architecture for internet and Intranet app projects and managing the application availability.
  • Deployed and Maintained windows phone applications on azure cloud technologies.
  • Converted .Net application to Microsoft Azure Cloud Service Project as part of cloud deployment.
  • Configured VMs availability sets using Azure portal to provide resiliency for IaaS based solution and scale sets using Azure Resource Manager to manage network traffic
  • Designed and configured Azure Virtual Networks (VNets), subnets, Azure network settings, DHCP address blocks, DNS settings, and security policies and routing.
  • Exposed Virtual machines and cloud services in the VNets to the Internet using Azure External Load Balancer.
  • Migrating applications from IIS 6.0 to 7.5 as well as II6.0 to IIS 8.0.
  • Deployed application on multiple web servers and maintained Load balance, high availability and fail over functionality.
  • Installed, administered, managed multiple Active Directory Domains, performed audits of AD objects and user permissions, developed OUs, managed group policies, managed active directory replications, managed FSMO roles, provided AD infrastructure, administration, installation, optimization, problem isolation and resolution.
  • Migrating virtual environments VMWare to Azure cloud using ASR.
  • Scripting and automation to move workloads and improve operations and support.
  • Configured VMs in availability sets using ARM templates to provide resiliency for IaaS based solution and scale sets using Azure Resource Manager to manage network traffic.
  • Deployed VNETs and Site-Site VPN using PowerShell and deployed VMs into various Subnets and enabled communication between Subnets.
  • Working experience in setting up cluster environment for load balancing and high availability of Windows servers.
  • LAN, WAN, DNS, Zero Trust Network Engineering designs within Public Cloud and connectivity
  • Owns and maintains Network engineering design, catalog of the public cloud network incorporating compute, storage, database, application and compliance components. The cloud network design will leverage cloud native SDN capabilities
  • Works with the DevSecOps team to define the requirements for catalog automation for network infrastructure and policy as code to automate the full lifecycle of the design patterns.
  • Collaborate with Information Security engineers to ensure public cloud networking patterns and are aligned to enterprise security requirements policies.
  • Owns the detailed design patterns for tools and automation of IaaS and PaaS offerings, works with cross-functional teams of ICS engineers.
  • Ensures all cloud network infrastructure engineering patterns are designed with appropriate level of proactive monitoring, resilience and dynamic failover to meet internal and client SLA requirements.
  • Collaborate with the cloud network operations team to ensure the smooth transition of new network patters, automaton and monitoring patterns into production.
  • Actively perform research to remain up to date around new public cloud network capabilities, and how these align to Enterprise Cloud strategy and opportunities.
  • Works with enterprise architecture, principal cloud and security engineers and business unit IT teams to understand the future needs around new public cloud automation and integration.
  • Ensures new engineered network capabilities to meet all cost, reliability and scale requirements, as well as any physical hosting restrictions.
  • Produced a comprehensive strategy using AWS Identity and Access Management (IAM) Role for community platform systems and successfully implemented the same setting precedence for other teams to follow suit
  • Responsible for check point and Cisco ASA firewall administration across global networks and implementing Firewall technologies including general configuration, optimization, security policy, rules creation and modification of Palo Alto Firewalls.
  • Extensive Packet level debugging and troubleshooting on Palo Alto Fire wall.
  • Experienced with software load balances, AVI controller and F5 networks.
  • Good communication skills with the ability to convey complex technical concepts to other design peers in verbal and written form.
  • Excellent qualities such as teamwork, negotiation, analysis, and communications.

PROFESSIONAL EXPERIENCE

Senior System Administrator

Confidential

Responsibilities:

  • Virtual and Physical Server Build, Decommission, Retire and Rename and Maintain more than 2000 VM machine across all over locations using by vSphere.
  • Administration of Windows 2003, 2008 and 2012 servers.
  • Hardware Upgrade, Maintenance and troubleshooting on Physical servers.
  • Responsible for Production and UAT elevations on Windows Servers.
  • Share Creation and Modification in NTFS level (Cluster Sharing, FTP and File Sharing)
  • Acronis Backup management and Trouble shooting.
  • Responsible for BMR and Data restoration using Symantec Netback up. (VERITAS)
  • VMware Administration thru vSphere client 5.5 (P2V, V2V, Cloning, VMtools, Migration, Server Build, Snapshot management, ESX patching and recently completed ESX upgrade from version 4 to ESXi 5.5)
  • DHCP Lease Reservation, DHCP Scope Creation/Modification/Deletion.
  • Responsible for patching Windows Servers using Bigfix Patch management software (Monthly/During Vulnerability remediation)
  • Vendor coordination for Hardware replacement and DR Involvement.
  • Antivirus management and troubleshooting with Symantec Endpoint Production.
  • Dell OMSA agent upgrades, Dell Driver/Firmware and BIOS upgrade.
  • MS Clustering (Manual Failover, Troubleshooting, Disk Mounting/Mount Point and Modification )
  • Netback up, Tripwire, Acronis, ControlM, Big Fix, SEP, STAP, SAN Software/Agent installation & upgrade
  • IIS installation and configuration, FTP installation and configuration.
  • Troubleshooting Windows Server related issues.
  • Alert management using Nagios and recently switched to Opsview.
  • Change Management using Service Now. Earlier used Team track Application for the same.
  • User/Group/Computer Object management in Active Directory. GPO management for OU.
  • At present providing Windows Server Support for CIT group - An US based Banking and Financial firm, which is having operation across North & South America, Europe & APAC.
  • Migrating virtual environments VMWare to Azure cloud using ASR.
  • LAN, WAN, DNS, Zero Trust Network Engineering designs within Public Cloud and connectivity
  • Owns and maintains Network engineering design, catalog of the public cloud network incorporating compute, storage, database, application and compliance components. The cloud network design will leverage cloud native SDN capabilities
  • Works with the DevSecOps team to define the requirements for catalog automation for network infrastructure and policy as code to automate the full lifecycle of the design patterns.
  • Collaborate with Information Security engineers to ensure public cloud networking patterns and are aligned to enterprise security requirements policies.
  • Owns the detailed design patterns for tools and automation of IaaS and PaaS offerings, works with cross-functional teams of ICS engineers.
  • Ensures all cloud network infrastructure engineering patterns are designed with appropriate level of proactive monitoring, resilience and dynamic failover to meet internal and client SLA requirements.
  • Collaborate with the cloud network operations team to ensure the smooth transition of new network patters, automaton and monitoring patterns into production.
  • Actively perform research to remain up to date around new public cloud network capabilities, and how these align to Enterprise Cloud strategy and opportunities.
  • Works with enterprise architecture, principal cloud and security engineers and business unit IT teams to understand the future needs around new public cloud automation and integration.
  • Ensures new engineered network capabilities to meet all cost, reliability and scale requirements, as well as any physical hosting restrictions. Produced a comprehensive strategy using AWS Identity and Access Management (IAM) Role for community platform systems and successfully implemented the same setting precedence for other teams to follow suit.
  • Manage cloud environments in accordance with security guidelines.
  • Worked extensively on configuring, installing and migrating VM Servers between different clusters.
  • Identify and implement optimal cloud-based solutions for our clients while working in tandem with our team.
  • Plan and deliver infrastructure transformations and migrations by creating, implementing and supporting scalable, high-performing cloud solutions.
  • Configure and deploy Microsoft Windows and Linux servers and systems using automation techniques and cloud service provider user interfaces (graphical, API and CLI).
  • Conduct virtualized server, workstation and infrastructure integration, administration, troubleshooting, backup and recovery.
  • Manage cloud environments in accordance with security guidelines.
  • Deploy and debug cloud initiatives as needed in accordance with best practices.
  • Educate teams on the implementation of new cloud-based initiatives and provide associated training as required.
  • Lead and develop best practices for the larger overall cloud team.
  • Implement the set-up of geographically redundant services.
  • Orchestrate and automate cloud-based platforms.
  • Employ exceptional problem-solving skills, with the ability to see and solve issues before they mount into problems.
  • Maintain a deep understanding and awareness of technology advancements for future cloud, software and other relative implementations and capabilities to support architecting, engineering and planning activities.
  • Replicate VMware VMs to Azure with Site Recovery.
  • Migrating virtual environments VMWare to Azure cloud using ASR.
  • Perform hands-on activities involved in creating cloud infrastructure components.
  • Deployed NSGs, VMs in a resource group using PowerShell.
  • Deployed new VMs for Development and Test Environment using PowerShell.
  • Deployed VNETs and Site-Site VPN using PowerShell and deployed VMs into various Subnets and enabled communication between Subnets.
  • Installed and configured IIS web server on Microsoft Windows 2012/2012R2 /2016 server accordingly.
  • MSSQL Migration from on-premises to SAAS service
  • Responsible for setup, configuration and migration of Excel based system to Azure SQL database. Performed design, deployment, configuration, and maintenance of scalable Cloud infrastructure; with an intense focus on Quality and Security.

Network Engineer

Confidential

Responsibilities:

  • Day to Day administration of Microsoft windows servers.
  • Recommended new updates and changes required by the clients.
  • Produced new system and network designs for clients.
  • Documented the new Windows server settings that have been applied to the network.
  • Installation, configuration, and administration working knowledge on Window 2012,2008 R2/2003 servers and Exchange 2010/2007/2003 servers at single or multi-level domain platforms.
  • Maintaining ISA and TMG 2010 Firewall Servers.
  • Experience and Familiar with Virtualization technologies like installing, configuring, administering DELL Storage MD3100 Created and managed VMs (virtual server) and involved in the maintenance of the virtual servers.
  • Experience in Active Directory, Exchange 2010, Hyper-V, Lync 2010 server GPOs, DNS, DHCP, File & Print Server, IIS.
  • Experience in Microsoft Office Suite, Open Office, Outlook, and Printer networking.
  • Strong experience in SAN data migration solutions that include/clusters.
  • Migrated operating system successfully from Windows 2008 R2 to Windows 2012.
  • Migrated SQL Data successfully from SQL 2008 to SQL 2012.
  • Marinating and Configuring TFS server for windows Application dev Team.
  • Monitors and maintains Windows Server operating system and additional server components including but not limited to Exchange, Active Directory, SharePoint, SQL Server, and Office Communications Server/Lync Server.
  • Applies patches to major subsystems and services, roles, and file system components within a Windows Systems environment and performs Operating System and patch testing on all changes prior to installation.
  • Monitors and reviews system logs and detect and troubleshoot problems.
  • Writes basic technical operating system documentation.
  • Controls system access and security aspects of critical systems.
  • Works remotely to provide 24x7 support on critical systems.
  • Works efficiently with minimal guidance from Senior or Lead administrators.

Network Administrator

Confidential

Responsibilities:

  • Prepared the environment for deployment of Windows Server 2003.
  • Analyzed the hardware and software requirements of Active Directory.
  • Installed, configured, and provide troubleshooting for Server 2003.
  • Migrated Windows Server 2003 from test environment to the production environment.
  • Implemented and managed IP Addressing; configured TCP/IP addressing on a server.
  • Created the Forest Root domain, and a Child domain in a production environment.
  • Installed and configured an Active Directory Domain Controller.
  • Established external trusts and cross-forest trusts.
  • Managed an Active Directory site; replication schedules, site links and boundaries, used ADUC to create and manage computer, user and group accounts in an Active Directory environment.
  • Used DcDiag, NetDiag techniques for troubleshooting.
  • Performed authoritative and non-authoritative restore operations.
  • Diagnosed and resolved issues related to master’s role failure and AD database.
  • Configured automatic updates for network clients by using Group Policy.
  • Designed, planned and implemented Group Policy, delegation strategies and OU structure.
  • Managed local, roaming, and mandatory profiles, planed strategy for placing Global Catalogue (GC) and evaluated the need to enable Universal Group Caching.
  • Created approximately NT users 500 user accounts in Active Directory and migrated all Windows by ‘User State Migration Tool (USMT)’.
  • Maintained technical knowledge in networking area; operating system (Server and PC).
  • LAN Administration: added users; printers; removed users; controlling access right list.
  • Monitored server performance.
  • Responsible for creating, testing PC images using Image Centre and Ghost.
  • Backup administration.
  • On-Call support (24x7).

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