Senior System Administrator Resume Examples

sr. system administrator

  • Managing System Center Virtual Machine Manager
  • Managing Active Directory
  • Managing Exchange Server 2013
  • Managing Office 365
  • Managing Barracuda Email Security
  • Managing TrendMicro

sr. system administrator

  • Managing In-house Server having windows server 2016 (DNS & Active Directory Server) and Network of 40 clients.
  • Managing Client Servers running CentOS 7, Ubuntu 16.04 and Windows Server 2012.
  • Managing Sonicwall firewall TZ300.
  • Installation and configuration of various databases like MySQL, MongoDB, Oracle and Apache Cassandra.
  • Configured and managing Apache Server and its various security mods on CentOS and Ubuntu. 
  • Configured and managing Apache Tomcat 7,8 and 9. 
  • Done Server penetration using OpenVAS and Qualys and configured the server according to the reports of pen test to manage the security of the server. 

sr. system administrator

  • Provide technical support to designers, marketing and sales departments, suppliers, engineers and other team members throughout the product development and impl
  • Managing client machines (Laptops) and troubleshooting of its issues. 
  • Configured and Managing Lamp Server. 
  • Also involved in purchase of products for infrastructure needs. 

senior system administrator

  • Handling customer issues through emails or ticketing system
  • Providing technical assistance through live chat
  • Monitoring servers and dealing with service failures and resource shortage issues using monitoring tools
  • Monitoring servers in case of abuse, investigation of abuse issues which includes identifying and taking actions against the abusive accounts/users or protecting the server against outside factors responsible for it.
  • Auditing servers, checking for server health security. This includes common system checks,
  • service checks, log analysis, resource usage analysis, security checks using various tools and rootkits.
  • Contact Data-center in case of physical hardware failure and acting accordingly.

sr. system administrator

  • Coordinated, monitored, and troubleshot to isolate and diagnose common and unusual server problems: documented system events to ensure continuous functioning. Recommend course of action and implemented as approved. 
  • Design, Architecture and implementation of Virtual environments including VMWare ESX/ESXi and Cisco UCS.
  • Performed OS installs and administered Linux and Windows 2019/2016/2012 Enterprise servers, Deployed Virtual Machines, maintained, troubleshot and configured applications. Automated many tasks using power shell scripts.
  • Analyzed and resolved complex enterprise system hardware and software problems; Interfaced with DBAs, software development, network support personnel and vendors for solutions. 
  • Created and implemented policies and procedures to define and improve workflow and communication.
  • Designed and implemented multiple WAN circuit and data center builds and/or upgrades.  
  • Created, justified and maintained budgets for multiple years.

sr. system administrator

  • User administration (setup and maintaining account in Windows Server)
  • Maintaining system
  • Verify that peripherals are working properly
  • Quickly arrange repair for hardware in occasion of hardware failure
  • Monitor system performance
  • Install software
  • Create a backup and recovery policy

senior system administrator

  • Design and implementation of Hosting environment for end clients.
  • Provided on-call support for critical issues.
  • Used ticketing systems to manage and process actions taken.
  • Troubleshooting for server/desktop problem.
  • Built and provided basic end-user troubleshooting and desktop support on Windows, Linux and Mac systems.
  • SQL server installation & administration.
  • Managing internal infrastructure servers and assisting Dev team for application deployment.

senior system administrator

  • Setting up and support for Windows servers (AD, GPO, DNS, VMware, Application servers, MsSQL server), Linux (dial-in), FreeBSD (routing (AS), postfix, ftp, samba, apache, bind, vpn, squid), active network equipment (3com, D-Link) in the office and on colocation.
  • Configuring and support network performance (300 workstations)
  • ServiceDesk 2nd line
  • Participation in projects: reorganization of office network, servers hardware updates, reorganization backup scheme

senior system administrator

  • Leveraged highly available VMware Virtual Infrastructure environment to improve server availability, reduce workload for IT staff, and automate server deployment for various business units.  Environment supported both production and development environments containing hundreds of servers running SQL, IIS, Exchange, SAP, Oracle EBS, JDE, Siebel and PeopleSoft.
  • Designed and implemented complete Network Infrastructure across multiple offices in India and USA including SonicWALL firewalls, HP Procurve Switches, IBM & Dell iSCSI storage and Rack Servers.
  • Monitor network communication
  • Update system as soon as new version of OS and application software comes out

senior system administrator

  • Diagnose, isolate and de-bug problems and performs problem resolution. Participate in troubleshooting and root cause analysis efforts to help identify the solutions and determine next steps to address the issues.
  • Reviews overall health of the deployed technologies.
  • Implements patching to keep applications at current levels.
  • Identifies tuning opportunities.
  • Ensures that deployed systems conform to standard designs.
  • Ensures that deployed systems conform to audit standards.
  • Accountable for components of the overall operating system or complex sub-systems of the operating systems, such as sophisticated file management routines, software installation, performance evaluation and enhancements.