rubyninja.org

Linux Systems Administrator / DevOps Engineer

NOTE: I'm not looking for any job opportunities, so any recruiter job inquiry emails will be ignored.

Summary

Antonio is certified GNU/Linux professional with years of experience working with missing critical web applications. He strives to achieve 99.9% uptime of all the systems and applications he supports.


Education and Certifications

ITT-Technical Institute San Bernardino, CA

Information Security Systems - Bachelor Degree of Science


ITT-Technical Institute San Bernardino, CA

Computer Network Systems - Associates Degree of Science


Linux Professional Institute Level 1 Certified Linux Systems Administrator (LPIC-1)
Novell Certified Linux Administrator
CompTIA Linux+ Certified Professional
CompTIA Network+ Certified Professional
CompTIA A+ Remote Support Certified Technician

Skills

Linux: Red Hat Enterprise Linux / CentOS
Debian / Ubuntu
UNIX: Solaris
FreeBSD
Mac OS X
Databases: MySQL
PostgreSQL
Memcached (distributed memory object caching)
Elasticsearch (distributed full-text search engine)
Languages: Bash/Shell, PHP, Perl, Ruby, Python
Monitoring and System Performance: Nagios, Ganglia, Cacti, Dell OpenManage Server Administrator (OMSA) suite, HP Active Health System, IPMI
Storage and Network Filesystems: GlusterFS, ZFS, LVM, mdadm, NFS, Samba
Configuration Management and Automation: Ansible, Puppet, Kickstart
CI / Build and Automation, Version Control: Jenkins, Bamboo, Git, Subversion
Web: Apache, Nginx, Varnish, WordPress, Drupal, Ruby on Rails
Awesome Miscellaneous Applications: BIND, ISC's DHCPd, Postfix, iptables, PF, Logstash, HAProxy, Cisco Adaptive Security Device Manager
Virtualization / Cloud Services: KVM
VMware ESXi
Virtualbox
Amazon Elastic Compute Cloud (EC2)
Amazon Elastic Block Storage
Google Cloud Services (Object Storage)
Softlayer CloudLayer Computing

Work Experience

GrindmediaSeptember 2013 - Present
Linux Systems Administrator

DreamHostNovember 2012 - September 2013
Data Center Operations Administrator / Systems Administrator
  • Collaborated with the Network and System Engineering teams to ensure smooth and reliable operations at all times.
  • Provided Level 2 support, assisted, and guided Level 1 Tech Support Specialists.
  • Monitored services across thousands of machines (physical and virtual) via Nagios.
  • Perl programming using custom in-house modules/APIs to proactively identify and fix services.
  • Solaris 11 System Administration; Large scale ZFS backup storage nodes.
  • ZFS pool and traditional RAID 1/6/10 rebuilds.
  • Racked and provisioned new physical servers.
Pictage, Inc.July 2012 - October 2012
Systems Administrator
  • Responsible for all tape backup and restore operations.
  • Oversaw complex system infrastructure in order to fix or escalate any issues immediately as they occurred.
  • Troubleshooted custom proprietary photography applications running on Linux and Windows platforms.
  • Wrote custom Perl scripts to automate manual tasks.
  • Performed data center operations such as racked/unracked servers, KVMs, network cabling, and hard drive replacements.
Trinet Internet Solutions, Inc.June 2008 - July 2012
Systems Administrator
  • Worked closely with the development and project management teams to provide award winning web solutions.
  • Administered and monitored mission critical web applications.
  • Administered complex Linux EC2 instances.
  • Custom Apache configurations.
  • SSL certificate management through all major Certificate Authorities.
  • PHP and Bash shell programming for automating and monitoring purposes.
  • Monitored MySQL servers, created, restored databases/tables as needed.
  • Implemented new/update DNS requests.
  • Sendmail and Exim SMTP server configurations.
  • Website and database migrations.
  • FTP/SFTP account setups.
  • Setting up, configuring, and maintaining LVM.
  • Server network configurations.
  • Kernel tunning.
  • Setup custom software RAID implementations using mdadm.
  • Designed, tested, and implemented custom backup solutions.
  • Designed and documented new and existing system infrastructure (development and production).
  • Implemented proper security access controls, monitoring, alerting and reporting of the existing system infrastructure.
  • Working knowledge with all major web hosting providers.
  • Occasional web programming.
  • Cisco ASA firewall/VPN configurations (via ASDM).
Microsoft Windows Directory Server Administration and Desktop/IT support
  • LAN/WAN administrator for East Coast and West Coast based offices.
  • Setting up and configuring remote desktop VPN users.
  • Creating/disabling MS-Windows domain user accounts.
  • Set up POP3/IMAP and SMTP mail clients and mobile devices.
  • Provided enduser support for all Microsoft Office 2003/2007/2010 applications.
Add2Net / Lunarpages Web HostingMarch 2008
Jr. Systems Administrator
  • Administered and maintained Apache web servers in Linux.
  • Provided technical support for Level 1 escalation issues via helpdesk, chat, telephone, and forums.
  • Initiated calls to newly subcribed web hosting customers.