Seasoned Linux & DevOps Administrator
I am a Linux systems administrator with over 15 years of experience in providing secure, stable, and reliable computing infrastructure. I am a "jack of all trades" administrator/engineer with experience in & exposure to a variety of industries and environments. This gives me a level of expertise that will provide you with a positive and thorough outcome to any project.
My expertise includes many aspects of systems administration and operations:
- Automated Linux installation & configuration with RHEL/CentoOS and Ubuntu
- Scripting in bash shell, Python, and Perl
- Web server administration with Apache and Nginx
- Java application server deployment & administration with Tomcat, JBoss, and Wildfly
- Configuration management, automation, and orchestration using Ansible and Puppet
- Linux server hardening & security
- VMWare administration
- Network administration of Cisco and Juniper switches & routers
- AWS administration including EC2, VPC, S3, RDS, Glacier, ElastiCache, and CloudFormation
- Architecting & building multi-site enterprise data centers and colocation sites
- Centralized authentication using LDAP, FreeIPA, and Active Directory
- Systems monitoring & alerting using Nagios and Zabbix
- DNS and DHCP configuration and management
- Trending analysis using Cacti, Grafana, Graphite, Elasticsearch, and InfluxDB
- High availability operations
I am also familiar with Windows server & Active Directory administration, including DNS, DHCP, domain management, policies, and user management.
Work Terms
Client satisfaction is my top priority. I would be happy to work with you on any project, big or small, and help you accomplish your goals. I'm flexible with my working hours to meet your needs. Feel free to contact me via email at shawn@smgreen.net. I am also available for phone or Skype consultation. I can do a 1099 or corp-to-corp arrangement.