System Administrator Linux Engineer

Jamshaid M

Linux Engineer

*************@*****.***

PH: 651-***-****

Career Summary:

A passionate, dynamic and determined Linux Engineer with 7+ years of experience in implementation and operational support of Linux servers and virtual environment including provisioning, application deployment, maintaining, patching and storage management in diverse heterogeneous environments. Profound knowledge of troubleshooting and resolving issues related to operating systems and automation with Ansible, GIT, cloud platform AWS and Basics of DevOps tool: Docker. Frequently communicate and collaborate with other developers to develop and implement system enhancements.

Core Competencies:

*Operating System

Red Hat Enterprise Linux 6, 7, 8, CentOS 6, 7, 8, Windows

*VMware

ESXi host, VMotion, vCenter, vSphere, vconverter

*Cloud

AWS (IAM, ELB, EC2, RDS, S3, Cloudwatch)

*DevOps Tools

Ansible, Docker, Git, Kubernetes

*Automation

Ansible, Ansible Tower, Bash Scripting, PXE with Kickstart

*User Authentication

Active Directory, LDAP

*Version Control

Git, GitHub, GitLab,

*Storage

SAN, NFS, LVM, RAID, File Systems (EXT3, EXT4. XFS)

*Servers

PXE, DHCP, Apache, DNS, SAMBA, NFS, FTP

*Software Management

YUM, RPM & Yum repository server

Professional Experience:

Linux System Engineer

US Bank, Minneapolis 10/2020 - Current

*Using GIT for version control and repository management involving; cloning, pushing, pulling, branching of repositories and used Source code management client tools like Git lab.

*Creating comprehensive user documentation and pushing documentation to GitLab using GIT on the CLI.

*Experience of incident management, taking care of the tickets generated by the monitoring tool to make sure the health of the infrastructure.

*Driving automation in the environment by helping set up Ansible inventory files and passwordless less SSH access by generating SSH key pairs.

*Installing, configuring and upgrading of Red Hat Linux using PXE Boot/ Kickstart and interactive installation.

*Experienced with Ansible playbooks for virtual and physical instance provisioning, configuration management and patching.

*Deploying Ansible as a configuration management tool. Writing playbooks by using role, dictionary and managing installation of applications, patching server. Using Ad-hoc commands as needed for administrative tasks.

*Experience in writing Ansible playbooks with handlers and variables to manage web apps, users, configuration files, services, mount points, and packages.

*Experience of provisioning EC2 instances, configuring cloud environment (IAM, VPC, S3, Cloud Watch). Deploying subnets and VPCs through the AWS console.

*Building S3 buckets and managing policies for S3 buckets. Using S3 bucket and Glacier for object based storage and backup on AWS.

*Performing day-to-day system administrator activities, troubleshooting, and storage assignments

*Hands on experience ELB (Load Balancers), IAM (Identity Access and Management), Cloud Watch, Route 53, EFS and EBS.

*Pulling Docker images from private Docker registry and hand-on with creating images from Dockerfile to deploy customized Docker containers.

*Managing Docker containers; starting, stopping, killing, running, and port mapping. Exposed to running containers in pods and managing replica set and cluster of containers using Kubernetes.

*Working on AD (activity directory) environment for administration and maintenance of users or service level accounts and experience with centralized user authentication (LDAP Protocol).

*Configuring NFS and troubleshooting NFS related issues. Using Auto Mount service for the NFS shares to avoid boot related issues.

*Configuring RAID for Performance and Redundancy (RAID 0, 1, 5, 6, 10).

*Performance Monitoring of CPU, Memory, Disk utilization, and network using various monitoring tools like Nagios.

*Experience of Root Cause Analysis to avoid recurring Issues and contributing in ensuring maximum uptime.

*perform as a data validation ( QA,SQL TESTER) using autosys and executing queries.

*working on patching through satellite.(6.9). and provisioning decomissioning servers .

Linux System Administrator

Honeywell Minneapolis 11/2017 - 07/2020

*Installed, configured and upgraded Operating Systems such as Redhat 6,7 CentOS 6,7.

*Created users, manage user permissions, maintain User & File System Quota on Red Hat Linux.

*Migrated user data and profiles to new machines.

*Installed packages using YUM and Red hat Package Manager (RPM) on various servers and creating YUM repository files for offline servers.

*Managed disks by static partition and used Logical Volume Manager (LVM) for the management of disk volumes and creation of customized file systems.

*Provided support services and change management by resolving tickets, incidents and change requests assigned by the ticket system.

*Created SSH keys to configure password-less SSH connection for remote System Administration.

*Limited user account privileges by configuring SUDOERS.

*Handled change requests for adding more resources like Memory, Disks and increasing the swap space.

*Provided operational support while solving networking (SSH, NFS troubleshooting, NIC bonding issue, DHCP, DNS), sluggish server, disk management.

*Used Prometheus as IT infrastructure monitoring tool for effective monitoring of resources such as processor load, disk usage, system logs, monitoring applications, services, and network protocols.

*Configure NIC-bonding on to handle network traffic efficiently, providing load-balance, and redundancy.

*Performed scheduled system backups, monitored system logs, performance monitoring and capacity planning in anticipation of system resource usage and needs.

*Monitored system performance and capacity planning and help to tune performance & availability.

*worked on provisioning patching decommissioning servers. patching through satelite (6.9).

System Analyst Linux/SAP

3M Saint Paul Minnesota 10/2015 - 09/2017

*Analyzed data for business intelligence and connections and processed information and monitored performance tools.

*Modified users as needed and familiar with business function, sales, and development.

*Proven experience in various aspects of the SAP software suites enhances capabilities to manage the team and maintain the flow of tasks.

*Migrated user data and profiles to new machines.

*Setup SSH password-less connection with remote server

*Troubleshoot common user/ performance issues and completed Basic network IP/TCP troubleshooting.

*Collaborated with other teams and team members for deployment of processes.

*Accurately interpret logs of system events and reported for troubleshooting purposes.

*Conducted system backups according to company’s standards.

Education:

Bachelor of Computer Science - 2009

University of The Punjab

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