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Linux Systems Engineer Resume

Louisville, KY

SUMMARY:

IT professional with extensive experience seeking long - term projects in DevOps Engineering, Systems Administration, server configuration, management and monitoring on the LAMP stack.

PROFESSIONAL EXPERIENCE:

Linux Systems Engineer

Confidential, Louisville, KY

Responsibilities:

  • Contributed to Confidential Appliances & Lighting private cloud platform initiative (internally developed) to deliver IaaS and PaaS built on top of vSphere, Ruby REST services, Docker, GitHub, Jenkins for continuous integration & delivery and Puppet/Riak for configuration management - to deploy code as a fully functioning, scalable, and fault tolerant application in seconds
  • Built Nagios monitoring system and became main Nagios admin for over 4,500 servers and 10,000 services, wrote custom monitoring plugins in Ruby and Bash
  • Set up development and testing EC2 instances in AWS
  • Managed virtual machine servers in VMware
  • Provided training for team members
  • Worked on daily incident and request tickets in ServiceNow

Linux Systems Administrator/Database Administrator

Confidential, Louisville, KY

Responsibilities:

  • Managed all Red Hat Enterprise Linux servers
  • Administered IBM Informix databases
  • Responsible for reporting (over 2500 sent out per week) systems comprised of 4GL code and Bash scripts

Systems Administrator/Engineer

Confidential

Responsibilities:

  • Modified server clusters composed of combinations of Pacemaker, Corosync, DRBD, Xen hypervisors, Confidential containers, and Linux Virtual Server load balancers
  • Improved company’s IT infrastructure by implementing principles of high availability and fault tolerance, including redundancy, failover and monitoring

Linux Systems Administrator

Confidential, Washington, DC

Responsibilities:

  • Designed, implemented and tested completely revamped infrastructure allowing for automated provisioning, configuration, monitoring and ongoing management of servers and workstations
  • Utilized Puppet and Foreman dashboard to automate several system administration tasks, wrote over 40 custom Puppet modules
  • Provided ability to stand up virtual machines on demand with KVM/QEMU for testing, development and demo purposes
  • Delivered dedicated backup solution with rdiff-backup (based on rsync)
  • Built Git repository server with gitolite
  • Implemented DNSSEC with BIND9 and dynamic updates of DNS records by DHCP
  • Used pre-seed and post-installation scripts on Ubuntu to automatically build development/testing servers
  • Set up multiple Drupal websites both manually and with Aegir, an automated method for building Drupal sites

Software Developer

Confidential, Annapolis, MD

Responsibilities:

  • Employed Test-Driven/Behavior-Driven Development, Rspec, RVM and Bundler to write and maintain code
  • Processed HTML pages and RSS feeds with Ruby, YAML, XML, XSLT & Xpath
  • Set up Red Hat development/testing cluster with VMware
  • Used Ruby on Rails, Apache load balancers, GlusterFS and Riak key-value store (NoSQL type database)
  • Utilized continuous integration practices, git and GitHub to contribute with multiple developers
  • Performed build testing with Hudson and unit tests with Rcov, set up YARD/yardoc server for code documentation
  • Utilized Cacti, Munin, God process monitoring framework, and Splunk for server monitoring and log analysis
  • Employed Jira, Confluence, and Pivotal Tracker for internal collaboration, documentation and project tracking

Web Developer/System Administrator

Confidential, Bloomington, IN

Responsibilities:

  • Implemented web development technologies including JavaScript libraries (jQuery and script.aculo.us), Webalizer for website statistics, and Google Search Analytics to analyze how visitors interact with sites
  • Employed Perl and CGI scripts for data transformations, and document processing
  • Constructed and managed full LAMP stacks for all web servers
  • Wrote Bash scripts when needed
  • Applied expertise in XHTML, CSS, and RDF to build static and dynamic sites, following web accessibility and usability standards
  • Utilized W3C Markup & CSS validation service with reference to Web Content Accessibility Guidelines (WCAG) version 1.0 level Triple-A and WCAG 2.0
  • Used HiSoftware® Cynthia Says™ Portal to test and ensure compliance with Section 508 of the ADA

Systems Engineer

Confidential, Indianapolis

Responsibilities:

  • Involved in all phases of the SDLC (planning, requirements analysis, design, development, testing and deployment)
  • Used CVS for version control and Capistrano for application deployment
  • Used lighttpd server and MySQL for web applications
  • Implemented AJAX technologies for interactivity

Contractor

Confidential, Indianapolis

Responsibilities:

  • Apache HTTP server configuration, deployment and administration
  • Built and maintained Sun Microsystems servers running Solaris with Oracle DBMS
  • Unix-based network administration utilizing SSH/CSSH, DNS, DHCP, netstat, ifconfig, dig and nslookup
  • Network/server performance monitoring using Nagios and Ganglia as well as software developed in-house (SNAPP)
  • Used Kickstart to deploy multiple Red Hat server images
  • Unix system hardening with TCP wrappers, PAM, Kerberos, and syslog
  • Created highly available systems with RAID and automatic failover

Confidential

Web development and testing, system administrator

Responsibilities:

  • Constructed full-featured, web-based e-mail system using Horde, Postfix and IMAP
  • Used PostgreSQL for back-end databases
  • Performed all data backup and recovery
  • Provided web security with SSL and log monitoring
  • Generated security certificates (became trusted Certificate Authority)

Confidential

Vice President

Responsibilities:

  • Microsoft IIS administration
  • Administered Windows Server 2003 and Active Directory Services (ADS) systems
  • Created XSL style sheets for converting XML data to HTML
  • Hardware/software installation, maintenance and modification
  • Deployed workstation images and performed backups with Veritas Backup Exec

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