SUMMARY:

• 5 years of experience as a Linux Systems Administrator
• 5 years of experience in Computer software and hardware configuration
• 5 years of experience in Enterprise information technology operations
• 4 years of experience in Data Center Virtualization Technologies
• 5 years in Application Security Management
• 4 years in User Administration and Role Based Access Control
• 5 years in Linux and Windows Networking and Patch management
• Working Knowledge of Chef, Jenkins, Docker, Git and Vagrant.
• Professional Training on AWS
• VMWare Certified Data Center Virtualization Associate

CORE COMPETENCIES:

• Experience in Project Planning, Execution, Monitoring and Control
• Excellent organizational, oral and written communication skills
• Ability to learn and understand new applications or standards quickly
• Ability to work with minimal supervision
• Professional Communication skills

PROFESSIONAL EXPERIENCE:

Confidential, Laurel, MD

AWS Cloud Administrator

Responsibilities:

• Installation and configuration of multiple Red Hat Enterprise Linux.
• Maintain internal data center and AWS servers for 100% uptime.
• Maintaining highly reliable 24x7x365 Linux production servers for internal, global and AWS EC2 instances
• Costing, Design, building and managing the infrastructure environments needed for the projects in the AWS hosting platform.
• Maintain system availability as per multiple Service Level Agreements (SLA).
• Produce monthly reports activity and explain any abnormal system performance.
• Configure System Access, Authentication and Authorization leveraging Multifactor Authentication MFA Open VPN etc
• Provisioned Instances in a highly available system on AWS
• Setup and Manage Linux Servers on Amazon (EC2, EBS, ELB, SSL, Security Groups, RDS and IAM, NACL).
• Setup and Manage VPC, Subnets; make connection between different zones.
• Configure VPC peering between different VPC
• Migration of on - premises datacenter over to AWS cloud using SMS and Import/Export Connector
• Lunch and Configure Multiple Instances on EC2, and in different VPC.
• Creating Database backend with RDS, MSQL.
• Create private-facing subnet with no internet access for backend Systems
• Using Auto Scaling to automatically increase or decrease the size of instances in the auto scaling group
• Create and Manage AMI/Snapshots/Volumes for disaster recovery purpose.
• Upgrade/downgrade AWS resources when needed (CPU, Memory, EBS)
• CDN distribution with Cloud front on different Edge locations.
• Archive data and files to Amazon Glacier.
• Automatically routes and balance incoming web traffic across number of instances using Elastic Load Balancer (ELB)
• Used CodeCommit for code versioning.
• Deployed RDS instances in multi-Availability zones, creating replica and promoting them when necessary.
• Created AWS CloudTrail for visibility into the cloud platform activities.
• Created S3 buckets, setup policies, enabled SSL and versioning for archiving purposes.
• Created users and roles and multifactor authentication
• Setup VPC flow logs and CloudWatch to monitor IP traffic and for diagnosis.

Linux System Administrator

Confidential, Silver Spring, Maryland

Responsibilities:

• Performing system software and hardware components upgrades as required to meet business needs; coordinating backups.
• Built and configured Virtual Linux Servers using ESXi and VSphere Client
• Configuring local storage using partitions and logical volumes
• Creation and configuration of file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems
• Server builds: experience in deploying server enhancement tools (ITM, ITEM, SRM,) on multiple servers
• Applying OS version upgrades on storage units (EMC Data Domain 890, 990) and Cisco switches (Nexus 5000, MDS 9000)
• Providing both remote and on-site system administration support for Red Hat Linux Servers
• Manage user accounts and group permissions
• Shell scripting and writing cron jobs for automation of reporting and monitoring to uncover any potential issues within the environment.
• Designed and implemented multiple Virtualization Infrastructures on VMware Hypervisor
• Built and configured Red Hat Linux servers using VMware, ESXI and VSphere client.
• Configuration of local YUM repository for software package management
• Hardening systems with firewall, Security Enhanced Linux and file system special permissions
• Experience with file transfer with FTP, NFS, Autofs, SAMBA, SSH, Winscp, etc
• Installation and configuration of Apache Webserver from source.
• Manage system logging services, analyze system reports, review alerts and examine log files to identify report and resolve problems in a timely manner to ensure stability and performance
• Provide support to high end Red Hat and Windows servers hosting SQL database
• Day-to-day functional administrative tasks and application-specific technical support according to SLA
• Scheduling jobs and log rotations using crontab.
• Experience in virtualization and cloud computing.
• Resolution of trouble tickets, hardware alerts and requests from vendors; escalating as needed
• Participation in on-call rotation.
• Experience in installed, configured and managed (RHEL6, Centos and Ubuntu) OS
• Installed and configured Apache, PHP and MySQL on Linux/Unix environment
• Created and managed user accounts and directories in Linux/Unix environment
• Scheduled tasks using at and cron
• Monitoring and maintenance of storage infrastructure equipment, such as: clustered master and media servers, storage devices, and Cisco switches.
• Configured and managed yum repository in Linux (RHEL6 and Centos)
• Installed and configured Nagios system; performed regular system and network monitor
• Provided Technical supports for internal users and resolved trouble shooting tickets
• Used rpm to install and manage packages
• Basic bash scripting experience in Linux/Unix platforms
• Experience in TCP/IP, LAN/WAN, DNS and DHCP
• Managed user permissions and group rights in Red Hat environment
• Participation in on call rotation
• Maintained professionalism, good attitude and appropriate behavior with clients Performed Custom
• Installation of 100 Red Hat Enterprise Linux Server Instances via Kickstart /Puppet.