Colin Shea

Really Simple, Inc

Senior System Administrator

November 2016 - May 2017

Automation for an AWS based infrastructure with heavy integration of RedHat management technologies, supporting a hybrid Spring Boot, Tomcat and node.js platform.

• Ansible used to provision, deploy, and configure every server, and every service.
• Created, from scratch, new production alike environments for clients and contractors
• Managed security policies and handled incoming reports.
• Deployed Prometheus for monitoring, Logstash for centralized logging, LYNIS and OpenSCAP for auditing, Spacewalk for patch management, FreeIPA for AAA
• Developed internal tooling with Go, Ruby and Python to automate deployment and management
• Used Docker to create reusable containers across production, testing, and testing environments
• Jenkins used for continuous integration of Java, Node.js and Ansible code. Continuous deployment via RPM packages.

Internet Security Research Group

System Administrator

December 2015 - August 2016

The deployment and management of Let's Encrypt in a highly secure environment to create the first truly open CA. Part of the team shepherding it from closed beta to general access.

• Created policies to use public cloud infrastructure alongside the existing secure datacenters.
• Worked with auditors and root trust programs to create and operate a high trust network.
• Developed custom saltstack formulas for a variety of standard management tools within the high trust network.
• Worked with the developers of boulder in Go and certbot in Python to help automate the creation of over 5 million TLS certificates, creating one of the largest certificate authorities in the world
• Investigated Docker for hosting boulder in production and development environments
• Continuous integration of application code using Travis CI with continuous deployment via RPM packages.

The Evogi Group

Lead System Administrator

September 2013 - June 2015

Configuration, monitoring, and deployment of 1,000+ Ubuntu and CentOS servers in AWS running Ruby on Rails, Java, Erlang and Go applications.

• Developed custom internal applications, for the operations and development teams, in Ruby, Go, and Java
• Transitioned from a monolithic server architecture to a multi-tiered architecture using Amazon VPC
• Spearheaded the first and subsequent international deployments
• Revamped the authentication and structure for the internal admin panel of the Rails code base
• Modernized configuration management and deployment using Chef 12 and Amazon EC2 Autoscaling
• Deployed applications to Heroku, Elastic Beanstalk, and other PaaS services
• Set up Nagios, Icinga, Shiken and ELK stacks to monitor components of the network
• Helped administrate multiple MySQL databases with terabytes of data
• Maintained patches against upstream gems and cookbooks to use internally developed libraries
• Set up TeamCity for continuous integration with Rails initiated by Github webhooks

Cummings Engineering Consultants

System Administrator

January 2012 - April 2013

Configuration, monitoring, and deployment of servers across the world in a hybrid cloud running Java applications.

• Developed and deployed custom internal applications in Java and Ruby
• Migrated servers from manual setup to configuration management using Puppet
• Developed policies to secure our servers to our client's (NSA) standards
• Located and decided on international targets across all continents to expand the network to fulfill ultra-low latency demands
• Managed the internal git, Gerrit code review, NAS, and Jenkins CI servers
• Managed PostgreSQL, MySQL and MongoDB databases in high security networks
• Ran the test suite for both Java and Puppet code in Jenkins with Gerrit hooks

University of Advancing Technology

Intern

August 2011 - December 2011

Helped out with networking and Linux related tasks in the IT department.

• Answered staff's and student's questions
• Deployment of new Cisco routers and switches
• Management of Fedora machines, integrated with Active Directory and Exchange, to let non-technical students experience Linux for the first time
• Upgraded the network security lab, isolating it from the rest of the network to ensure regular client machines wouldn't be affected
• Created a library of shell scripts to spin up and manage new VMWare virtual machines in the network security lab

[Buffer]Overflow

Chairman of the Root The Box Committee

January 2011 - October 2011

As chairman, it was my responsibility to manage the committee with weekly status meetings.