SUMMARY:

• A team player with over six years of experience in the IT field and Linux/DevOps Engineering experience.
• Remained engaged in configuring, managing, maintaining, deploying, and performing root cause analysis on Bare - Metal & Virtual Machine Servers in an enterprise environment.
• Excellent ability to troubleshoot performance related bottlenecks, captivate new information, fix system related issues, and adapt to evolving circumstances.
• Experience in collaborating with the team and accomplishing company goals set by Senior Management and dealing with high level tasks.
• Sufficient experience in dealing with VMware and DevOps automation tools such as Ansible, Docker, AWS, Gitlab.
• Currently at a learning stage on picking up knowledge on other tools like Terraform, Kubernetes, and CI/CD Jenkins.

TECHNICAL SKILLS:

User Management: NIC Configuration - NIC Bonding - File System Management - Storage Management SAN

System Troubleshooting: Kernel Tuning - GIT Repository - Ansible Galaxy Hub - SolarWinds - SSH/SCP

Ticket Assessment and Prioritizing: Direct User Support – SELinux – VMware Virtualization - ILO – IDRAC Rack & Stack - TCPDUMP - TCP Stack - TCP/IP Protocol Suite - UDP - Netstat - SNOW - RAIDS

Process Management Crontab: DRP - LDAP – Red Hat Satellite - RHEL 7.6, 7.7 - VCenter vSphere, vSphere DRS - VMotion - ESXI 5.6, 6.7 - HA Clusters - OEL 6.10 - CentOS 7.6 - Ubuntu 140.04.5 - Iptables – Firewalls

NIC Bonding: NFS - DNS – Ext3, Ext4, XFS - Kubernetes – CI/CD Jenkins - Docker – Rsyslog

Performance Management: FTP – TFTP - Patching and Provisioning VMs and BMs - YUM Repository

Package Management: PXE-Boot, Kick-Start - Nagios XI - Splunk - GIT – DHCP - Ansible Tower

Vulnerability Management: LVM - HP ProLiant D 380 G9 - Dell PowerEdge R910 – Office 365

Cloud Computing: AWS – Bash Scripting - Python - HTTPS – RPC BIND - JIRA - REST API

Terraform: RDM – LUN - EMC SAN - VM Snapshot – SCSI - On-Call Rotation 24x7

RSYNC: Kernel Panic – Katello-Agent – IPv4 & IPv6 – HPC Cluster

American Express: Phoenix, AZ August 2018 – April 2021

PROFESSIONAL EXPERIENCE

Linux/DevOps Engineer

Confidential

Responsibilities:

• Supporting RHEL 7.6, 7.7, CentOS 7.6, OEL 6.10, Ubuntu 14.04.5 VM Servers and tested RHEL 8.2
• Configuring, managing, and provisioning Virtual Machines through Ansible Tower.
• Installing and deploying Apache web services by creating playbooks and executing through Ansible 2.7.
• Automating tasks on virtual servers centrally through VMware vCenter and vSphere using Ansible Playbooks, Bash Scripts and sometimes Python.
• Kickstarting several VMs in vCenter and vSphere with the use of VM templates in Ansible Tower.
• Understanding of REST API in Ansible Tower.
• Working with Red Hat Satellite Repository for system/package updates to avoid any vulnerabilities.
• Acting upon Manager’s CRQ to patch servers twice a month for system maintenance.
• Awareness of the next freeze time to avoid patching up servers to reduce disruption of operations mainly increase workload on our servers.
• Monitoring and logging servers and all network device activities in our environment using Nagios XI and Splunk and analyzing all aggregated data time to time to better understand various metrics.
• Resolving P1-P4 incident/service request tickets through CRQ via SNOW ticketing platform as well as documenting the steps taken to resolve those tickets for future analysis.
• Have dealt with P1 tickets in troubleshooting NFS being mounted improperly causing file system to hang.
• Performed data transfers from host to host via TAR and RSYNC.
• Troubleshooting network related incidents using Netstat -s, Traceroute, Tcpdump, Ping, Ncat, SS -tunap.
• Deployed & maintained web server applications, Apache Tomcat and Mozilla Firefox for application team.
• Actively working with LDAP to manage and authenticate users between Windows & Linux Environments.
• Actively working with the storage team to add EMC SAN Storage to VM via RDM.
• Troubleshooting disks with RAID levels to determine if servers are hot swappable.
• Taken VM snapshots to revert to previous state when tasked to work on servers.
• Solid understanding of the OSI Model, TCP/IP Protocol Suite, UDP, IPv4 and IPv6 addresses.
• Working with ESXi 5.6 and 6.7 servers.
• Experience with vMotion to migrate VMs from one ESXi server to another during system maintenance and for Disaster Avoidance best practices.
• Upgraded several servers from RHEL 6 to RHEL 7 and permanently shutting down the old VM.
• Balancing VM workload by using vSphere DRS to ensure appropriate amount of resource is given to each machine when the need arises.
• Dealing with High-Availability clusters which significantly reduced system downtime.
• Working knowledge of PXE-Boot to deploy OS images on several Rack & Stack BMs in our environment.
• Communicating with both application and developer’s team via Outlook to ensure critical operations are running efficiently without system delay.
• Accessing Bare-Metal server consoles through ILO, IDRAC, and IPMI utility in the event they becomenon-reachable.
• Performed operations on Bare-Metals HPC HP and Dell.
• Working with Gitlab pipeline, in close collaboration with the development and application team to ensure that any changes made to requirements for a project are communicated properly with all members of a team as well across teams for better workflow.
• Worked with Docker Containers for testing purposes.
• Brief understanding of Kubernetes, CI/CD Jenkins, Terraform (IaaC).
• Performed tasks in an array of AWS services (IAM, S3, EC2 Instances, VPC, EBS, AMI, EFS, CloudWatch, ELB, Auto Scaling, Bastion, CloudFormation, Stack) for brief understanding.
• Exposure to AWS service tickets from the AWS ticketing system, Jira.
• Created several EC2s using prebuilt AMI and was exposed to the automation of EC2 instances through Infrastructure as a Code written in JSON.

Confidential, Boston, MA

Linux Systems Administrator

Responsibilities:

• In charge of managing RHEL 6.3 and 7.5 OS Filesystem.
• Performed Root Cause Analysis on Linux machines to understand why system is becoming slow and sluggish with the use of commands; TOP, SAR, IOSTAT, VMSTAT, MPSTAT, FREE.
• Worked with TCPDUMP, to analyze network traffic between servers.
• Performed kernel tuning as per service request to enhance the functionality of the overall Linux Kernel.
• Created Bash Scripts to automate tasks like updating packages, adding users, installing, and starting services. Also performed task automation via Crontab.
• Configured RAID levels on BM servers.
• Secured Linux servers using strong passwords, enforcing SELinux, and implementing SUDO policy.
• Configured NIC Bonding for increased network performance and availability.
• Performed configuration on NIC files on servers assigning static/dynamic IP addresses.
• Worked with services such as DNS/BIND, APACHE, NFS, SSH, VSFTP, TFTP, Firewall.
• Worked with the operations team to extend volume on existing hard disk through LVM in situations where more disk space was required by the development/application team.
• Assigned to resolve service-related issues that were made through CRQ in SNOW.
• Installed and configured NFS with my team to enable file sharing on a remote host that could be centrally accessed by different departments.
• Worked with LDAP to authenticate and manage users between Linux and Windows systems.
• Authenticated users between Linux servers through SSH keyless entries.
• Used VM snapshots to revert OS back to previous state whenever needed.
• At times, referred to vendor documentation to fix OS issues that I was not familiar with.
• Understanding of the Linux Boot Process in RHEL 7.
• Performed ILO and IDRAC to take console on BM HP ProLiant DL 380 G9 and DELL PowerEdge R910.
• Created, configured, and maintained local YUM Repository.

Confidential, New York, NY

IT Support Technician

Responsibilities:

• Supported Windows 8 OS. Worked with Active Directory on Windows 10 to manage users and hardware related devices.
• Created files and directories for new user accounts and assigned permissions to complete tasks.
• Provided end user remote and onsite support.
• Opened tickets for issues that required manager’s attention.
• Assisted users in changing user passwords and any other sign-in related issues.
• Provided daily project status updates and communicated to the project management team.
• Responded to inquiries from various departments via Microsoft Outlook.
• Assisted co-workers who were having issues with difficult tasks.
• Great communication and collaboration across departments.