Support Technician Linux Systems
Resume:
Mohiuddin Miah
Linux Admin
************@*****.***
CAREER SUMMARY
Result oriented & motivated Linux Admin offering above 5 years of experience in IT industry. Managing & monitoring Linux systems as well as server deployment, development, support & operations with good working knowledge of VMware, AWS, and DevOps tools (Ansible, Git, Docker/Kubernetes). Day-to-day work handling like building, patching provisioning, application deployment, storage management, troubleshooting related and maintaining Linux systems in a mission critical bare metal and virtualized (VMware) environment by automation of tasks and processes.
CORE COMPETENCIES
Operating Systems
RHEL 6,7,8 CentOS 6,7,8, Ubuntu
VMware Product
ESXi, Vsphere, Snapshots, Clone, Cluster, HA, Fault Tolerance
Storage
SAN, NAS, NFS
File System
EXT3, EXT4, XFS
Version Control
GIT, GIT HUB
Service Management
BMC Remedy, Service Now, Jira
Amazon Web Services
EC2, S3, IAM, Cloud Watch, VPC, RSD, ELB, Auto-scaling, CloudFormation,
Servers
DNS, DHCP, FTP, TFTP, HTTP, Apache, NFS, PXE
DevOps Tools
Ansible, Ansible Tower, Git, Docker, Kubernetes
Monitoring
Nagios, Zabbix, Prometheus
Applications/Servers
YUM, RPM, REPOS, NIC-Teaming,
PROFESSIONAL PROFILE
Linux Admin
Walmart, Bentonville, AR
August 2020 – Current
●Working experience with VMware vSphere client, vCenter server, ESXI, clustering, Vmotion, and RDS on GUI for virtual environment.
●Experienced in automating large-scale deployments with modern configuration and deployment management systems with Ansible.
●Experience in change management & automate the patching process, validate & troubleshoot servers before and after patching by using Playbooks.
●Automating configuration management and deployments using Ansible playbooks, and creating roles and updating Playbooks for provisioning of servers. Using tags and handlers to customize playbooks.
●Working experience in Ansible Tower and GIT to automate the playbooks, schedule projects, create roles, run Adhoc commands, hosts/groups management, monitor the project servers, and troubleshoot.
●Experience with storage systems (SAN, NAS) configured RAID levels (0,1,5,6,10) on CLI, configured storage management using LVM.
●Used LVM for creating physical volume, Volume Groups, Logical volumes and on need basis extending the volume.
●Patching of servers to prevent attacks and hacking and also generating SSH authenticating keys to secure the environment
●Experienced in branching, tagging and maintaining the versions across the environments using version control tools GIT.
●Working knowledge of Creating, maintaining and synchronizing RPM/YUM repos and performed managing, installing, and, upgrading software packages using YUM and RPM.
●Using Nagios as a monitoring tool to identify and resolve infrastructure problems.
●Authenticated and configured user access controls with LDAP and Active Directory application profiles, respectively.
●Proficient in providing AWS infrastructure support and services in prod environment to maintain the health of OS to support running Applications effectively by using AWS technologies i.e VPC, IAM, AMI, EC2, S3, EBS, EFS, ELB, Auto-scaling, Cloudwatch, and Cloudformation.
●Experience in deploying Kubernetes cluster, deploying app containers, configure replicasets, pods & services logs, and troubleshoot on "etcd" for debugging.
●Managing Docker repository, files/compose, images, running containers, container inspect, allocations resources to a particular container.
●Experience in supporting containerized applications environment and migration of apps to containerized environment to enhance workflow and scalability.
●Responsible Performance monitoring, usage and load of the system, changing kernel parameters for better performance, loading and unloading kernel modules.
Jr. Linux Admin
FedEX, NYC, NY
July 2019 – June 2020
● Responsible for installing, patching and upgrading packages using YUM and RPM.
●Creating YUM repository files for offline servers.
●Configured NFS for remote file sharing and troubleshoot NFS related issues.
●Excellent in in troubleshooting critical OS issues related to network, performance, ACLs, storage, allocating resources to app teams through ticketing system.
●Implemented access control lists (ACLs) on files for complex user and group access permissions.
●Proficient troubleshooter in networking related issues on OS. Strong working knowledge of TCP, UDP, IPv4, VPN, OSI model, routers and switches.
●Experience with NAS and SAN storage for data storage. Partitioned disks using fdisk utility for MBR and created file systems (EXT3,EXT4, XFS) on demand.
●Worked on Shell Scripts to automate, and customized admin repetitive tasks.
●Scheduled cronjobs to monitor the system, enabled network, and achieving logs.
●Monitored host resources such as processor load, disk usage, system logs, monitoring applications, services, and network protocols by using Nagios.
●Reviewed and utilized SYSLOG to troubleshoot system issues.
●Maintained maximum uptime and maximum performance capacity.
●Supported different teams (app, security, tech-maintenance, database, security) for effective solutions.
Linux Support Technician
Bloomberg, Dayton NJ
Feb 2018 – May 2019
●On-site PC system setup, troubleshoot networking, printer issues
●Racked stacked new servers in datacenters.
●Resolved wired-connectivity related issues.
●Software and Hardware installation and cabling.
●Simple Hardware maintenance and repair
●Handled tickets that involved troubleshooting equipment hardware issues.
●Managed system health and troubleshooting through TOP, SAR, IOSTAT, VMSTAT, NMCLI.
●Added and removed hard disk, partitioned disks and formatted with suitable file system.
●Validation of new installed BM-servers.
●Managing backups of logs and configuration files.
Hardware Specialist
Julio Hardware Store
Jul 2017 – Jan 2018
●Assisted seniors or specialists to resolve any critical issues, maintained, and monitoring of the computer systems.
●Diagnosed the hardware failure reasons, repaired, and replaced hardware.
●Assembled and configured all network components and sorted out hardware requirement and suggested necessary upgradation of hardware.
●Performed research and deployed corrective measures to resolve complex PC problems.
●Verified and submitted the warranty claims whenever required.
●Ran virus scans and cleaned the computer systems for re-imaging.
●Installed all the necessary software after operating system replacement and configured as per demand.
EDUCATION
John F Keneddy Memorial
High School Diploma - 2016
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