Christopher Jenkins Email & Phone Number

Phoenix, Arizona Area

Infrastructure Engineer with background in automated testing and system engineering in on-site and cloud environments. Extensive experience with Terraform, Puppet, Ansible, Jenkins, and other technologies and languages for automated deployment and testing.Seeking a role in creating effective systems, using my current abilities and developing new ones.

Brighton, United Kingdom

Senior systems administrator for telecoms company. Responsible for deployment of SIP-based software for large telecoms customer. Duties include:• Automating operating system and software deployment across multiple customer sites(Cobbler, Puppet).• Packaging in-house developer code (RPM).• Deployment of scalable micro-service architecture (Node.js, Nginx, RabbitMQ).• High Availability services (Veritas Cluster Services, Heartbeat).• On-site monitoring and alarming (Nagios, Munin).• Writing and maintaining plugins and orchestration scripts written in Ruby, Python, Perland Bash to query many services/metrics using language libraries, curl (accessingRESTful APIs) and standard UNIX commands.• Responding to emergencies from on-call systems.• Code merge/release management (Subversion, Git). Maintaining Puppet code as a fully versioned product developed along SDLC stages.• Programmatically parsing, editing and generating config files (YAML, JSON, ini).• Issue tracking/documentation/revision control integration (JIRA/Confluence).• Storage (NFS, GlusterFS).• Deploy test environment to cloud (DigitalOcean). First writing ruby scripts to accessprovider APIs, then using VM creation tool (Vagrant).• Continually building product and running various lint parsers (Jenkins).• Staff training.Accomplishments:• Rationalizing Puppet code into Roles/Profiles pattern (recommended by PuppetLabs).• Reducing code base to one third by utilizing carefully selected Forge modules.• Migrating product code from Puppet 2.7 to 3.6, programmatically migrating customhierarchical Puppet node definitions of customer sites into Hiera YAML files. DesigningHiera structure to accommodate multi-OS installations and clearly disambiguateprogram data from customer data.• Migrating remaining single points of failure into HA framework (Heartbeat, GlusterFS,Veritas Cluster Service). Achieved long-term company target of having no singleserver failure impact service.

Brighton, United Kingdom

Deploying and maintaining Linux servers and workstations at an enterprise level. Duties include:* OS and software deployment and configuration (using Cobbler, YUM, Puppet) forboth servers and workstations. Generalizing puppet configuration for use on differentflavors of Linux (Red Hat, Debian) and other UNIX (Mac OS X, FreeBSD).* Installing, configuring and maintaining VMware vSphere infrastructure for servers.* Implementing services (Tomcat, Apache, Subversion, MySQL) for thousands ofusers. Integrating these services with users' directory accounts and security groups.* Integrating Linux and Mac OS X with Microsoft Active Directory to provide unified,single sign-on authentication (Kerberos, LDAP, SSSD) and unified storage acrossplatforms.* Installing, configuring and maintaining grid computing system (Sun Grid Engine) foracademic researchers.* Physical server installation into data centers (racking, patching, provisioning)* Home directory and group multipathed SAN-based storage (SMB, NFS, Dot Hill).* Maintaining software mirrors (YUM); writing server-side Python to manage metadata.

Primary Systems Administrator for an engineering company over four UK sites.Maintaining Novell NetWare servers and Windows workstations, backups, file servers,desktop deployment, mail server, web services and bespoke recruitment software.