Objective

A full time position that will allow me to develop and further my skills in a variety of IT disciplines, including systems administration, networking, and datacenter field work, while enhancing business continuity and scalability in my field.

Work experience

Confidential

UNIX System Administrator

• Engaged in a multitude of tasks oriented to the expansion of the organization's products and resilience during high usage periods. Responsibilities involved provisioning of new virtual machine servers for application buildouts, deep configuration management for all operational aspects, resource scaling and monitoring. Additional responsibilities is two-week long on call/backup on call responsibility, during which I am responsible for releasing new code to our staging and production environments, and troubleshooting and resolving incidents and outages.
• Skills involved range from operation of and deep familiarity with CentOS5/6 linux operating systems, RHEL 5, and their management, and configuration management for these hosts using bcfg2. I also had deep involvement in using vmware ESXi 5.1 for the provisioning of new hosts, which also involved Cobbler and Kickstarter, which leveraged against bcfg2 allows for rapid deployment of new servers. Other skills used include knowledge of Apache, MySQL, postgresql, Oracle 10i SQL Server, MongoDB, Celery Task Queue, python WSGI scripting, Apache Tomcat, JBoss, and a variety of monitoring tools including Splunk, Ganglia, and Nagios.
• Configuration management was broad-ranging and affected all components using the bcfg2 configuration server, with a suite of in-house developed validation scripts using bcfg2-tools, a centralized git repository on gerrit, and Jenkins for validation and environment maintenance.
• Other responsibilities included maintaining medium-large Linux server installations 200-300 nodes through migration and maintenance of old code and services to modern systems, to allow for the retirement of outdated or deprecated servers, and in the same process providing direct support to developers when releasing code, troubleshooting downtime in production, and ensuring development environments are well-maintained.

Confidential

Systems Administrator, Owner

The original Pyoko Community services that I had previously ran transitioned from a community forums and hosting site to a side-project so that I could focus on my day to day career. In this process, I reduced my management responsibilities to keep this work on at a hobby level that could be maintained during free time. Over the years, this service has seen many different technologies applied, mostly in the realm of virtualization, covering KVM virtualization and VMWare ESXi 5.1.0, and application of foundations acquired through work experience to allow the network to grow to a size of twelve virtual machines. The use of the PfSense firewall was added to allow for more granular networking.

Confidential

Customer Service Engineer, Tier 2

Provided customer support and technical support services while dealing with a proprietary mix of software packages for various operating systems. Responsibilities included troubleshooting and problem resolution for the TruePosition WLS, TruePosition LIMS, and Zoombak SUPL platforms.

Skills required by this job included a knowledge of the Solaris 8 and 10 platforms, WindRiver/MonteVista Linux, and Java Web Start. I provided analysis and rapid outage reconciliation for a high availability system covered by FCC outage guidelines. In addition, I would also provide upgrade support for various software and hardware installations remotely, investigation of transport issues related to Cisco 3xxx router/switches, and Telco-level DS0/T1/T3 communications. When required, I would write fully detailed analysis and root cause studies at the conclusion of outage-level issues to provide to high level customer management.

Confidential

Systems Administrator

The Pyoko Internet Community was a community-focused, user-supported network, providing web hosting, UNIX shell accounts and a variety of features, run for and by a worldwide user group sharing common goals and interests.

Since early 2001, I have provided ongoing support in my role as Owner and Systems Administrator. Common tasks included providing assistance with simple requests such as account creation, FTP usage support as well as advanced issues, such as software deployment, software and OS upgrades and rewriting open source software to perform the daily tasks required by the community. In 2006, this service was transitioned to a customized virtual machine-based system using Xen VMM.

Skills

• Extensive UNIX experience, including various Linux distributions such as Debian, WindRiver Linux, MonteVista, RedHat Enterprise 3/5, CentOS5/6, VMWare ESXi Hypervisor, and Debian with Xen Virtual Machine Monitor. I also have long-term experience with Sun Solaris versions 8 and 10.
• Experience with Mac OS X based systems, and the use of Xcode for building and managing software packages for that platform.
• Working familiarity with several programming, scripting, and web-based markups, including C, HTML, XHTML, CSS2, PHP, XML, Perl, and python 2.6 .
• Powerful and deep knowledge of configuration management in Linux and other UNIX operating systems by use of the bcfg2 configuration management engine, cobbler/kickstart, and custom in-house scripts designed to make good use of VMWare's vCenter Infrastructure API.
• Able to use distributed revision control services with some proficiency, primarily Git, but with working knowledge of SVN and Mercurial.
• Extensive knowledge of TruePosition Wireless Location System and all of its components, including WLG , SMLC , and LMU and associated sub-components. This includes passing knowledge of carrier-level DS0, T1, and T3 transport, Cisco 3xxx-series routers, cellular GSM RF engineering and SuperDLT tape autoloaders.
• Experience with the use of the BMC Remedy ticket management system including the creation and resolution of trouble tickets, as well as the Rallydev Agile platform, and FogBugz.
• Strong familiarity with Agile practices and SCRUM/Sprint styles of work.