SUMMARY

• An energetic, self - motivated, and analytical Linux Engineer offering over 5 years of experience in deployment of Linux servers in hybrid environments including provisioning, maintaining, monitoring, and troubleshooting.
• Skillful in troubleshooting issues pertaining to operating systems. Comprehensive in cloud computing, automation (Ansible), IAAS (Terraform), and DevOps tools such as Jenkins for CI/CD, Docker for containerization and GIT as SCM.

TECHNICAL SKILLS

Automation: Ansible, Ansible Tower, Bash Scripting, Cronjobs, PXE boot, Kickstart AWX

Cloud Technologies: AWS, IAM, EC2, EBS, EFS, S3, VPC, ELB, AMI, Route53CloudFormation, Security Groups, CloudWatch, Azure AD

DevOps: Git, GITHUB, Docker, Terraform, Jenkins

Disk Storage Management: SAN, NAS, RAID, LVM, LUNS

Hardware Troubleshooting: Rack and Stack, ILO, IDRAC, DELL and HP servers

Languages: BASH, Java, C++

Networking: TCP/IP, DNS, NFS, DHCP, FTP, TFTP, VSFTPD, SSH, HTTP, APACHENGINX, WireShark, TCPDump

Operating Systems: Red Hat Enterprise Linux (RHEL 6 & 7) / Linux CentOS 6 & 7, 8

Performance Monitoring: Nagios, NetBackup, Veeam, SAR utility, Sensu

Security: Iptables, Firewall, OS hardening, SELinux

Virtualization Tools: VMWare, ESXI host, VSphere Client, VCenter, Oracle VirtualBox

Other Tools: Service Now, Red Hat Satellite, Office 365, OKTAAtlassian Confluence, Jira Kanban

PROFESSIONAL EXPERIENCE

Confidential, Jersey City, NJ

Linux System Engineer

Responsibilities:

• Provisioning, installing, configuring, operating, and maintaining systems hardware, software, and related infrastructure
• Managing servers and configuring peripherals, utilities, configurations, directories, and storage in compliance with project/operational specifications and standards
• Using Ansible Playbooks to install and configure services, handle packages, and manage the security of systems
• Creating cron jobs for device maintenance and automating BAU tasks
• Backing up and restoring vital assets on a regular basis
• Installing, configuring, and maintaining network services such as DNS, DHCP, NFS, SSH, LDAP, and AD
• Effectively planning, creating, allocating volumes, and managing disk space for multiple RHEL and CentOS servers by utilizing Logical Volume Management (LVM)
• Monitoring system performance statistics like storage, CPU utilization and network bandwidth utilization
• Using Terraform workflow to deploy virtual machines in AWS
• Managing Virtual Machines, Creating Templates, Cloning, and using Templates to Deploy Virtual Machines
• Efficient in communication, documentation, and problem identification
• Working with performance tuning, which includes gathering statistics, analyzing, and explaining them
• Using compression techniques to increase performance while saving disk space
• Managing user access and permissions in AWS
• Managing users and groups using the Azure Active Directory (AAD) service
• Creating and updating S3 buckets using CloudFormation
• Monitoring resources and proactively taking actions on CloudWatch
• Handling, configuring, and managing public/private cloud infrastructures using AWS, such as AMI, EC2, S3, IAM, Auto-Scaling, Elastic Load Balancer, Glacier, VPC, and Route53
• Using Docker to manage microservices for continuous integration and delivery development
• Installation and configuration of Jenkins required for automated application deployment
• Working with Jenkins for continuous integration and end-to-end automation of all builds and deployments
• Setting up a CI/CD pipeline using Docker, Jenkins, GitHub, and AWS

Confidential, N.Y

Linux System Administrator

Responsibilities:

• Responsible for setting up NFS File Systems, NFS Server and clients; NFS Server Maintenance with Auto Mounts
• Used monitoring tools such as Nagios and Sensu to keep infrastructure and applications healthy
• Tuned kernel parameters to optimize system performance
• Deployed virtual machines using clones and templates on VMware ESXi
• Configured password less SSH access by generating SSH key pair
• Debugged Linux server performance activity through analysis of daily generated system activity reports (sar)
• Heavily handled change requests (CRQs) for adding more resources like Memory, Disks and increasing the Swap space
• Monitored logs, activities, and processes to ensure server health
• Created Cron Jobs to automate administrative tasks
• Managed RHEL user accounts, groups, directories, and file permissions
• Wrote Ansible playbooks to manage environmental configuration files, packages, services, users, and storage
• Installed, and configured RHEL using Pre-Execution Environment (PXE) and Kickstart utility for automation
• Wrote effective and shell scripts dat automate mundane tasks
• Resolved and maintained network stability by investigating and mitigating network traffic with Tcpdump and WireShark
• Used ILO/iDRAC for remote access of servers
• Set up a strong firewall and carefully monitored open ports
• Kernel runtime management and troubleshooting, including gathering information about the running kernel, adding and removing kernel modules, and modifying module behavior during boot
• Added users to Active Directory
• Drove incident response with focus on restoration of service, followed by root cause analysis
• Worked a non-standard work week, weekends, and holidays

Confidential, NYC, NY

IT Operator

Responsibilities:

• Provided support in the implementation and installation of hardware and software components
• Checked computer hardware to ensure functionality
• Proactively handled tickets dat involved troubleshooting equipment hardware issues
• Actively monitored Backup server for failed backups or hardware issues
• Created tickets for any issues and escalated to support teams
• Performed routine administrative tasks such as setting up, updating, and modifying user rights/privileges
• Assisted all support groups on attainment of SLA commitment
• Installed printers, scanners and fax machines
• Troubleshooted common user and performance issues
• Monitored, evaluated, and corrected system problems
• Managed packages with RPM and YUM
• Provided operational support while solving networking issues (IP, Route, Gateway, NIC bonding) and providing support to multiple Application teams
• Provided Tier 1 (Help Desk) problem identification and Tier 3 (Watch Desk) support during normal to semi-critical situations
• Coordinated with vendors for hardware replacements
• Provided 7x24x365 coverage as required