SUMMARY
- Experienced systems administrator with more than 10 years of experience in fast - paced Unix/Linux environments (Red Hat, CentOs and Ubuntu) and a strong commitment to administer or engineer Rhel/Centos/Ubuntu systems.
TECHNICAL SKILLS
Virtualization: VMware ESX, ESXi 4.1/5, VMware View 4.5/4.6/5.0, KVM, Vsphere 5.5Red Hat Virtualization 4.0/4.1 Red Hat Identity Management / KVM
Operating Systems and environment: RHEL /6/7/8 Linux, MS Win Server 2008/2012 R2/2016
Networking Protocols/Applications/Servers: TCP/IP, DHCP, DNS, FTP, HTTP, HTTPS, SSH, SAMBA,NFS, APACHE, POSTFIX, LDAP, TOMCAT, NGINX
Scripting Languages: Bash, Python, Powershell
Monitoring: Nagios, zabbix, CheckMk, Groundworks
Databases: MariaDB, MySqlConfiguration Management and Automation: Ansible, Puppet, Foreman, Terraform
PROFESSIONAL EXPERIENCE
Senior Linux Engineer
Confidential - Washington, DC
Responsibilities:
- Set up and administer user and groups accounts, setting permissions, Web servers, file servers, firewalls, and directory services with ability to diagnose and find root cause of system issues.
- Provisioned multiple RHEL 6/7/8 machines under HyperV environment and VMware
- Performed packages installation and updates using appropriate Satellite channels / content views
- Troubleshot and resolved software and hardware problems, interfaced with vendor technical support to resolve problems and work with other technical staff on supporting their needs.
- Provided root cause analysis and systems backup
- Diagnosed and resolved problems associated with DNS, DHCP, NFS and Apache.
- Installed and administered multiple servers including Postfix, Apache, LDAP, OpenSSL certificate authority
- Created and wrote scripts using Bash, Python and PowerShell
- Automate day to day task using Ansible playbook
- Provided support to Qradar and BMC discovery software
- STIGs all RHEL machines and integrated them to Active directory
- Worked in a mix environment of Active directory, Linux and AWS
Linux System Engineer
Confidential Rockville, MD
Responsibilities:
- Set up and administer user and groups accounts, setting permissions, Web servers, file servers, firewalls, and directory services with ability to diagnose and find root cause of system issues.
- Provisioned multiple RHEL machines under VMware environment
- Maintain, upgrade, and implement improvements to the VMware ESXi infrastructure
- Performed packages installation and updates using appropriate Satellite channels / content views
- Diagnosed and resolved problems associated with DNS, DHCP, NFS and Apache.
- Installed and administered multiple servers including Postfix, Apache, LDAP, OpenSSL certificate authority
- Created and wrote scripts using Bash, Python and PowerShell
- Automate day to day task using Ansible playbook and puppet manifests
- Worked in a mix environment of Active directory, Linux and AWS
Linux System Administrator
Confidential
Responsibilities:
- Built, installed, configured RHEL servers in a data center environment.
- Installed many new RHEL servers using kick-start installation & configuration method.
- Monitored web servers using Nagios monitoring tool.
- Administered local and remote servers on daily basis providing weekly status reports to management.
- Installed and configured Puppet and Ansible.
- Troubleshot and resolved software and hardware problems, interfaced with vendor technical support to resolve problems and work with other technical staff on supporting their needs.
- Monitored security logs to determine security problems.
- Optimized system performance by tracking daily system utilization, to determine if problems are imminent.
