System Administrator Resume
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Columbia, MD
TECHNICAL SKILLS
- RedHat 6
- 7 and other legacy RHEL OS
- CentOS
- Slackware
- Basic Windows
- AWS
- Logical Volume Manager
- Apache
- SSL/TLS
- Mysql
- Tomcat
- NetBackup
- SSH
- Nagios
- MS Access
- VMware
- Linux
- UNIX and Remote Desktop
- JIRA
- VMware Administration
- Network configuration
- Ansible
- Puppet
- Kernel Tuning crontab
- Bash
- Tomcat
- Jenkins
- Git
- Perforce
- Installation and configuration of Java based applications monitored application process create/manage file systems hardware/software break - fix. Database back-up and recovery
- Installation build and configuration of Mysql/Mariadb databases patch management storage management and performance management and application support.
PROFESSIONAL EXPERIENCE
Confidential, Columbia, MD
System Administrator
Responsibilities:
- Work with Performance engineering and Development Teams to optimize RHEL-based infrastructure, ensuring efficient operations and compliance with Service Level Agreements (SLA).
- Recommend, design and deploy performance monitoring tools and tune the environment accordingly.
- Installed, configured and troubleshoot basic DevOps tools (Jenkins,Git,Artifactory and Tomcat).
- Maintain current documentation of architecture, interfaces, processes and procedure, and server inventory.
- Resolved numerous issues of Disk space (Log rotation)
- User Administration, I created new users, reset passwords and customized user attributes
- Patch Management
- Installation, upgraded and downgraded when necessary using Package Managers like yum and rpm
- Managed configurations using Ansible
- Supported and Managed costomer facing Applications like Apache and tomcat
- Troubleshoot, wrote RCA and resolved various Resource Utilization issues
- Knowledge of enterprise level ticketing systems (JIRA)
- Knowledge of KVM, Vmware esxi 5 and 6
- Experienced with LDAP, Nagios, tcp/ip, DNS, NFS, Openssl and apache webserver.
- Exposure to Govt. Projects and various Computer Based Trainings (CBT)
- Experience Migrating application from onpremise to AWS cloud using VM import
- Experience working in AWS via the CLI and management console.
- Experience managing Cloud resources within Amazon AWS Platform, particularly:
- Experience Deploying, maintaining and managing HA Proxy Load balancer
- Experienced in Installing, Configuring, Managing and Maintaining Mysql/Mariadb database.
- Experience Upgrading Mysql/Mariadb databases
- Experience with Git SCM
Confidential, Fulton, MD
Linux Administrator
Responsibilities:
- Administered, deployed, troubleshoot and maintained RHEL 7 and 6 Virtual Infrastructure and applications.
- Install and compile apache from source code on Centos 7
- Built Mariadb Java connector and Mysql from sources on various Virtual Devices.
- Exposure to Access Management (IAM), S3 bucket, Cloud Watch and Security Groups.
- Build Mariadb and Mysql databases from source code, made a backup of existing Mysql database, uninstall it and Build Mariadb, restore the database and test the new Mariadb.
- Reset root password in RHEL
- GLPI installation and Management
- Installed, configured, and set environment variables for Maven and Java.
- Knowledgeable on Perforce/Git Version Control Systems.
- Understanding of VMware administration e.g. build, clone, snapshot and network configuration.
- Experience with networking protocols, OSI MODEL, TCP/IP, NFS, SFTP, SMTP, SSH, DNS, SSL/TLS.
- Experience in Monitoring system performance using command line tools like sar, vmstat, iostat, netstat, top, lsof and third party monitoring tools like Nagios.
- Exposure to configuration management tools (Ansible, Puppet).
Confidential, Largo, MD
Linux System Engineer/Application Support Specialist
Responsibilities:
- Experienced building Apache from source code.
- Created golden image (template) for various deployments like LAMP stack, KVM etc
- Experienced deploying, configuring, managing and troubleshooting Apache web server
- Deployed and installed VMware, Linux and UNIX servers.
- Installed Virtual machines, as well as physical machines on VMware.
- Installed Centos, Red Hat, and Solaris on machines.
- Provided Ansible and Puppet automation tools for system-wide configuration and management of Linux servers.
- Managed and configured RPM package building tools for building and patching of applications from source codes for Centos and RHEL systems.
- Experienced in Server Virtualization (VMware, KVM) and Auto-provisioning using Kickstart.
- Patched different applications when new versions are available.
- Patched windows and Linux Servers.
- Deployed open source software, such as Apache, Tomcat, Mariadb, etc.
- Configure Firewalls to allow applications to run.
- Prepped and setup DevOps Pipeline.
- Exposed to Cloud (AWS), setup cloud environment, configured VPC, ELB, Security Group, created EC2 instances, and migrated applications from on-prem to cloud.
- Installed and troubleshot DevOps tools, such as Jenkins, Tomcat, Git, and Maven.
- Assisted in any data migration activities whenever necessary with the team.
- Transferred software applications and reports between testing and production environments.
- Created Logical volumes and design the environment to the job's directions.
- Troubleshot Nagios Alerts and used Remedy for ticket coordination.
- Application of Ansible deployment and system patching using Ansible playbook.
- Managed systems routine backup, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
- Created new file systems, managed and checked data Consistency of file systems.
- Setup Nagios server to monitor systems uptime, services and file systems.
- Installations, configurations, and support on front end and back end on tomcat.
- Created user accounts and group policies on Linux Servers.
- Followed job's policies to create user accounts and manage groups of multiple user accounts.
- Provided remote access to different levels and types of users.
- Diagnose d an d resolve d customer' s connectivit y issue s i n RHE L 6& 7 servers.
- Managed al l type s o f installatio n an d upgrad e o n Linu x servers.
- Ticke t assessmen t o n a dail y basis through remedy.
- Configured an d managed networ k interface
- Imaged server s an d clien t computer s an d remotel y manag e thei r softwar e after deploymen t o n Red h at Linu x 6 & 7.
- Provid e softwar e an d hardwar e tec h suppor t ; 24/7 on call support a s required.