Khawar Shahzad

• As RedHat Enterprise Linux engineer worked on OS, securing and configuring OS scheduling jobs by using Jenkins
• Performed daily health checks on Linux servers through Infrastructure monitoring tools such as Nagios
• Utilized Tomcat and Apache servers for cloud server management based on Linux
• Monitored and tested application performance to identify potential bottlenecks, develop solutions and collaborate with developers on solution implementation
• Automated system updates and upgrades using automation tool
• Provided 2nd and 3rd level technical support and troubleshooting to internal and external clients
• Responsible for Linux system issues for troubleshooting and remediating by analyzing system logs using system messages and Splunk
• Used Jira ticketing tool to track down, manage, and resolve internal tickets and incidences and used Jira confluence to manage documentation
• Worked on upgrading Virtual Machines VMware ESXI hosts and V Centre servers as well as v Sphere
• Deployment and configuration of virtual machine on VMware ESXI hosts and registered them with Red Hat Satellite and took snapshots for backups
• Responsible for user management including but not limited to creating new users, privileged escalations of permissions and sudor access
• Worked with version control tools such as Git and GitHub, created pull requests (PR) on GitHub and have changes reviewed before merging to latest feature branch
• Deploy application to Dev and QA environment for testing purpose
• Worked with various AWS technologies such as EC2 instances, S3 buckets, VPC, RDS, Cloud Watch, IAM, S3 etc.
• Launched EC2 instances using Linux Amazon images and configured instances with specific applications
• Created monitor alarms for EC2 hosts with help of Cloud Watch
• Worked with Docker images and containers to check all microservices for testing purposes
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues
• Experience setting up secure password less sign-on with SSH authentication
• Updated Yum repositories with RPM packages as per client’s request
• Resolved issues related to operational components for LAN, WAN and voice systems and also managed and monitored installed systems for highest level of availability.
• Skilled at working independently and collaboratively in team environment.
• Participated in system development life cycle from requirements analysis through system implementation and excellent communication skills, both verbal and written

Remote

• Perform patching on Linux servers and interact with users on daily basis for Linux related issues Expert-level skills in using LVM to segment volume groups into arbitrary logical volumes, enabling flexible partitioning and dynamic volume resizing
• Provide support for internally developed tools and process support tickets
• Monitor performance of batch scheduling system and compute servers\improve, automate and document processes related to account creation, termination and modification
• Work with VMware platform and management tools
• Building and provisioning servers BM using booting device
• Provided technical assistance and support in handling queries and issues related to computer systems
• Managed file systems, which included ext2, ext3, ext4
• Worked with SAN managing physical hard drives
• Worked in Decommissioning processes
• Ensured end users satisfaction by monitoring and responding quickly and effectively to requests received
• Upgrade systems and processes as required for enhanced functionality and security issue resolution
• Provided support to application team for code releases on Jenkins
• Writing Ansible Playbooks to configure servers simultaneously and to automate daily tasks among multiple servers
• Handling tickets by using service now interacting with users on daily basis.

• Installed, configured, maintained, and supported Red Hat Linux/CentOS 5/6/7 servers
• Creating logical volumes, extending file systems using LVM
• Setting up secure password less sign-on with SSH authentication
• Schedule jobs using on linux machines
• Using PXE BOOT to provision servers and for booting up client machines
• Researching and recommending innovative, and where possible, automating approaches for system administration tasks
• Worked on upgrading Virtual Machines VMware ESXI hosts and V Center servers
• Server migrations on VMware, V Motion, VMware Update Manager
• Managed TCP and UDP protocols, as well as transferring files over networks using utilities such as SSH, FTP, SCP, and R sync.
• Decommissioned physical and virtual servers
• Working with Vendor support via email and phone to resolve crucial production cases
• 24HR Availability for Production issues and maintenance schedule for patching and migration
• Installing and building physical servers (HP, DELL,) and virtual ESXI (VMware)
• Worked with Bash scripts to automate daily tasks
• Patch Management, Package Installation/Upgrades/Removing
• Managing critical servers such as DNS, DHCP, NFS, LDAP, FTP
• Creating and privatizing AWS Virtual Private Cloud {VPC) and launching instances
• Creating and Managing user accounts and managing system security
• Documenting processes, best practices and troubleshooting procedures.
• Maintained smooth operation of multi-user computer systems through collaboration with hardware and network engineers.
• Installed system-wide hardware components, confirming interoperation and compatibility with Linux-based software
• Resolved issues and escalated problems with knowledgeable support and quality service
• Implemented, developed and tested installation and update of file servers, print servers and application servers