Linux Engineer Processor

SAIRA LATIF

Linux Engineer

Summary

Linux Engineer with 6 years of experience working in Hybrid environments, configuring new servers, and managing the automation of large numbers of systems and applications efficiently and consistently through Ansible. Experienced in GitLab, Docker, Kubernetes, Ansible Tower, and Amazon Web Services. Confident in Tuning, Backup, Upgradation, Patching, Monitoring System Performance, System, and Troubleshooting of Linux Servers. Chronological Experience:

Citi Bank, Florida June 2020 – Present

Linux Engineer

● Maintaining and administering servers including Physical and virtual in VMware and Cloud-based environments.

● Hands-on Using Ad-hoc commands with regards to Ansible for the deployment and automation of day-to-day administrative tasks.

● Creating playbooks by using roles and adding handlers and tags to install applications, system provisioning, and patching.

● Managing Docker repository, files/compose, images, running containers, container inspection, and allocation of resources to a particular container.

● Created Docker volumes and connected it to a container by mapping the volume to the container.

● Working with VMware technology, ESXI Hypervisor hosts, vSphere client, Installing and configuring VMs, creating clones and templates, creating customized VMs, and taking snapshots to preserve the state of the machine.

● Spinning up new EC2 instances in AWS Cloud, creating S3 buckets, setting up rules and policies, configuring EBS volumes, and attaching with EC2 instances.

● Configuring AWS IAM and Security Groups in Public and Private Subnets in VPC, managing IAM accounts (with MFA) and IAM policies to meet security audit & compliance requirements.

● Working on Cloud Watch to get a unified view of AWS resources, applications, and services that run in AWS and on-premises.

● Creating and managing Logical Volume using LVM to create volumes on the volume groups, and file systems, extending/reducing logical volumes and file systems, and recovering deleted LVM.

● Experience in ansible for configuration management, created and modified playbooks and executed them to automate variable tasks.

● Excellent in version control systems like GIT and used Source Code Management (SCM) tools like GitLab and other Command-Line Applications.

● Experience in maintaining Saas based applications on RedHat Linux servers.

● Implemented Vmware vSphere clustering solutions in virtualized environments to ensure high availability.

● Performed backups by archiving and compressing using tar utility.

● Working with the ticketing system ServiceNow to efficiently resolve issues reported by users and incident management (system login, hard drive failures, insufficient disk space, and system performance).

● Proven experience of a sharp reduction in the recurrence of future incidents by conducting RCA and documentation.

Allergan - New Jersey December 2017 – April

2020

Linux Admin

● Deployed, managed, and maintained a virtual computing environment based on VMware by utilizing templates to deploy RedHat (5, 6, 7).

● Migrated physical servers to virtual machines, and migrated ESXi VMs across data centers and experience managing DRS and HA.

● Deployed the latest patches for Linux and Application servers, and performed RedHat Linux Kernel Tuning.

● Expertise in the area of Application server installation, performance tuning, monitoring, troubleshooting, support, and creation of documentation.

● Optimized systems through performance and kernel tuning steps and troubleshoot panic issues.

● Implementing backup schedule policies, regular testing, and off-site recovery plans as a part of Disaster Recovery Solution(DRS) to ensure data integrity and assurance.

● Monitored the servers through monitoring tool alerts for processor load, disk usage, and memory.

● Deployed and configured JIRA, both hosted and local instances for issue tracking, workflow collaboration, and tool-chain automation.

● Configured various RAID levels with different techniques like stripping, mirroring, and parity for better Performance, and Redundancy.

● Partitioned Disk with fdisk, and gdisk to accommodate multiple file systems and provide better file system sanity.

● Managed systems routine backup, scheduled job, and enabled system and network logging.

● Configured NIC-Bonding with different runners to manage traffic flow and ensured better speed and network availability.

● Maintained communications with all stakeholders to achieve a high level of customer satisfaction.

● Resolved issues related to Network using ifconfig, route, netstat, traceroute, tcpdump, NSlooku

● Proficient in utilizing Bash scriptng to automate and manage system administration tasks.

● Experienced networking concepts like OSI Model, TCP/IP, UDP, DHCP, and DNS, HTTP.

● Successfully addressed post-patching issues, such as restoring the server’s functionality and resolving other related issues.

Verizon, New Jersey November 2016 – October 2017

NOC Support

● Examined logs for errors and resolved them accordingly.

● Monitored logs and escalated the issues to the team members for getting better performance.

● Generated reports detailing common problems and error trends and documented all issues.

● Planned and executed software and hardware platform changes with minimal disruption in service.

● Monitored and Managed Server performance using associated tools.

● Performed problem tracking, diagnosis, and root-cause analysis, troubleshooting, and resolution.

● Provided input on ways to improve the stability, security, efficiency, and scalability of the environment. Education:

University of the Punjab

Bachelors of Science 2006

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