Brian Jarrett

Brian Jarrett Email and Phone Number

Infrastructure Engineer - Cloud Engineering and Operations at Cisco @ Cisco
Brian Jarrett's Location
Grove, Oklahoma, United States, United States
Brian Jarrett's Contact Details

Brian Jarrett personal email

n/a
About Brian Jarrett

DevOps/QA Engineer with over 18 years of experience across the IT spectrum -- engineering/operating infrastructure, designing, customizing and testing software/systems, managing projects, and training technicians.Some technologies and systems used over the years:✔ Hypervisors: KVM, ESXi, Hyper-V, Xen, VirtualBox✔ Development Tools: Gerrit/Jenkins (CI/CD), Jira (Scrum)✔ Linux Servers: Ubuntu, CentOS, RedHat, etc.✔ Programming Languages: Python, PHP, PL/pgSQL, C, Delphi✔ Software libraries: SQLAlchemy, Flask, Google Apps API, pywin32✔ Automation: SaltStack, Ansible✔ Storage: Ceph, LVM, iSCSI, NFS✔ Monitoring: Nagios, Observium, Zenoss, NewRelic✔ Databases: PostgreSQL, MySQL, MSSQL, MongoDB✔ Network hardware: Cisco Routers/Switches/Firewalls, HP Switches, Sophos UTM✔ Windows Servers: NT, 2000, 2003, 2008, 2012✔ Servers using: OpenStack, Apache, OpenVPN, StrongSWAN, Postfix, Dovecot, Joomla, Wordpress✔ Cisco CallManager/Unity 4.x -7.x VoIP✔ Ruckus wireless access points and bridges

Brian Jarrett's Current Company Details
Cisco

Cisco

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Infrastructure Engineer - Cloud Engineering and Operations at Cisco
Brian Jarrett Work Experience Details
  • Cisco
    Cloud Engineering Technical Leader
    Cisco Aug 2019 - Present
    San Jose, Ca, Us
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  • Cisco
    Infrastructure Engineer - Cloud Engineering And Operations
    Cisco Jun 2017 - Aug 2019
    San Jose, Ca, Us
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  • Select Group At Cisco Systems
    Cloud Devops/Qa Engineer
    Select Group At Cisco Systems Feb 2016 - Jun 2017
    • Improved stability of Windows 2008 and 2012 images used in Openstack by identifying and correcting a race condition that would intermittently cause an instance to reboot during setup, rendering the instance unusable.• Identified filters that could be removed from nova scheduler and cut the time it took to schedule against 700 nodes from 20 seconds down to 5, reducing the time it took to create an instance in large scale environments.• Built out and evaluated several Proxmox clusters for possible usage with Cisco's InterCloud Services.• Configured RHUI clusters for tenant use and assessed its viability for use as a service to customers using RHEL VMs.• Wrote Ansible playbooks and executed them to change configurations and manage cron jobs on hundreds of servers. Ran ad-hoc Ansible commands to identify servers needing fixes applied.• Managed script and playbook changes with Gerrit and Jenkins for CI/CD.• Tested Compute and Heat components of Cisco's OpenStack Public cloud during upgrades/updates in datacenters worldwide.• Conducted QA on new RHEL, Ubuntu, and Windows images to be uploaded to Glance for tenant use.• Performed root cause analysis of failures found during testing, submitted bugs and assisted the Compute team in problem resolution. • Assisted in QA and testing of Compute team projects. • Wrote test cases, Bash and Python testing scripts, and updated existing cases and scripts for Openstack Compute and Heat functions.Technologies used:• OpenStack • Gerrit/Jenkins • RHEL 6/7 • Ubuntu • CentOS 6/7 • Windows 2008/2012 • Proxmox • Ansible • Python • BASH scripting • Vagrant • Docker • Cisco UCS servers • VLANs • VPN • Routing •
  • Australian Laboratory Services
    Senior Systems Administrator
    Australian Laboratory Services Sep 2014 - Jan 2016
    • Created Ubuntu-based Ceph cluster for ESXi hosts, tested performance of iSCSI vs RBD to Ceph block devices used by ESXi VMs.• Implemented SaltStack to manage Linux VMs and quickly provision new Ceph nodes and VMs.• Utilized Ceph RBD snapshots to manage testing of automated database schema and data conversion for major database upgrade. Upgrade of production database was accomplished with zero errors.• Wrote Python/SQLAlchemy script to test for missing foreign keys through the course of a major database migration to ensure data integrity.• Installed Observium to graph system performance and added checks to Nagios to properly monitor production and development systems.• Updated VM configurations and software to reduce number of service restarts from one every week to one or two per quarter.• Increased internet connection bandwidth by 100% by identifying an overloaded gateway and replacing it with proper hardware.• Configured replication and onsite/offsite backup of production MySQL database using LVM snapshots and rsync.• Fixed a difficult issue with Asterisk calls that were cutting out only at the top of the hour. Through methodical troubleshooting, found that the asterisk server was configured to use the wrong router that was flooded with backup traffic over VPN tunnel at the top of every hour.Technologies used:• Ubuntu • CentOS 6/7 • Windows 2003 • Windows 2012 • VMWare ESXi 5.x • Hyper-V 2012 • Ceph RBD • iSCSI • NFS • LVM • SaltStack • Python • SQLAlchemy • Nagios • Observium • NewRelic • MySQL • OpenVPN • StrongSwan • Cisco Routers/Switches • HP Switches • Sophos UTM • VLANs • VPN • Routing • SELinux • iptables • firewalld • MongoDB • Redis • Fonality Asterisk • IIS 8 • OpenFiler • Google Apps • Microsoft Exchange • Active Directory •
  • Glenn Abbey Software
    Devops Consultant
    Glenn Abbey Software Jul 2006 - Jul 2014
    • Gathered system requirements from clients for custom PHP modules and features.• Tested new features against requirements and for proper integration with the core Centre/SIS software.• Benchmarked and analyzed SQL queries, improved database performance through the use of views, stored procedures and triggers.• Re-engineered database tables to normalize data.• Tested PHP modules to make sure they completed data conversion and calculations properly.• Wrote custom Python/SQLAlchemy script to import nightly data from Arkansas state reporting system (APSCN) into Centre/SIS.• Remotely installed software and performed troubleshooting on client servers running Windows Server, OS X and Linux.• Completely redesigned and developed the grading/GPA system and transcript generation for Centre/SIS using PHP and PL/PGSQL.• Developed custom reports, transcripts, and report cards for clients. • Performed numerous data migrations and conversions from other Student Information Systems.Technologies used:• Ubuntu • CentOS • OS X Server • Windows 2003 • Windows 2008 • PHP • Python • SQLAlchemy • PostgreSQL • MySQL • Database design • PL/PGSQL • Moodle •
  • Garfield County School District 16
    Senior Systems/Network Administrator
    Garfield County School District 16 Oct 2002 - Jun 2014
    • Installed and managed Citrix XenServers running virtual Windows 2008 and Ubuntu Linux servers.• Managed project to completely replace aged student information system with web-based, centralized system that removed the need to copy data between schools.• Streamlined state reporting processes by writing PHP code to generate the reports from the new centralized Student Information System.• Supervised contractors installing cabling and hardware in new buildings to make sure it met requirements.• Saved the district over $60,000 and reduced helpdesk issues significantly by outfitting 6 new computer labs with thin clients and terminal servers instead of using PCs.• Increased WAN bandwidth between buildings from 1.5Mbps to over 100Mbps without incurring monthly service costs by installing Ruckus wireless bridges.• Reduced calls to helpdesk about student accounts by approximately 97% by developing a web application utilizing Flask and SQLAlchemy that synchronized the student information system with • Active Directory and Google Apps, and allowing teachers to check on account status and reset student passwords when necessary.Technologies used:• Ubuntu • Windows NT • Windows 2003 • Windows 2008 • Citrix XenServer • VirtualBox • Python • SQLAlchemy • Flask • Apache • PHP • PostgreSQL • Cisco CallManager • Cisco Unity • Cisco Routers and Switches • Cisco PIX • Ruckus wireless bridges and access points • Windows Terminal Servers • HP Thin Clients • Google Apps • Smoothwall •
  • Storagesoft, Inc./Phoenix Technologies
    Sales Engineer/Field Marketing Engineer
    Storagesoft, Inc./Phoenix Technologies Jan 2000 - Oct 2002
    •Tested integration of ImageCast with other systems management software like SMS, CA Unicenter, and Desktop DNA. •Performed ImageCast demonstrations and training for large corporations like HP, Target, and NEC and during trade shows.•Worked with customers to define software requirements for new features and submit change requests.
  • Storagesoft, Inc./Microhouse International
    Technical Services Manager
    Storagesoft, Inc./Microhouse International Jun 1998 - Jan 2000
    Training of tech support in the testing lab worked so well that the decision was made to merge the testing and tech support departments. I was given the responsibiliy of managing this new department. In this capacity, I hired and trained new technicians, designed test cases and executed testing plans, managed lab Windows and Linux servers, and managed the test network. My continued work in the testing lab meant I got to reconfigure the network almost everyday and learned a considerable amount about setting up servers, workstations and networking in a very short period of time. When the company split, my department was moved to a new office and I took on the added responsibility of designing, building out and then managing the new network, lab, and servers. During this time I expanded my knowledge of testing methodologies and performed system analysis, wrote use cases and software requirements, ran performance tests and benchmarks and researched possible solutions for existing problems and new features. I took my increased knowledge and trained personnel on software products, testing methodology and networking. ► Increased productivity and staff effectiveness by combining the tech support and testing departments and rotating all staff through the test lab and helpdesk.
  • Microhouse International
    Software Testing And Qa Lead
    Microhouse International Jan 1998 - Jun 1998
    I was given a permanent job with MicroHouse after an initial 6 month contract doing testing and QA for the company's software. My attention to detail and methodical approach made me well suited to QA. I was given more responsibility and in short order was managing all testing of ImageCast and DrivePro products. I maintained all the lab hardware and network, and researched new technologies to implement in products. I also interviewed applicants for tech support and testing positions.While acting as QA Lead, I:► Increased effectiveness of tech support personnel and increased testing productivity by training tech support as they were running through test cases.► Organized software testing by implementing a bug tracking system, writing testing plans and test cases.
  • Professional Technical Recruiters (Contracted To Microhouse)
    Test Lab Associate
    Professional Technical Recruiters (Contracted To Microhouse) Sep 1997 - Jan 1998
    My foray into Testing and QA started with this contract job with MicroHouse, Intl. I Tested DrivePro and ImageCast software. Created test scenarios and set up lab hardware (PCs and networking) for testing DrivePro and ImageCast. Trained tech support personnel on software and helped with difficult support issues. At the end of the contract, MicroHouse hired me on full time.
  • Computer Consulting Associates
    Computer Technician/Salesman
    Computer Consulting Associates Jun 1995 - May 1996
    This was my first job after the AirForce and was where my foundation for System Administration started. I remember the owner of the company thinking it would take me up to 6 months to learn to build PCs, but I was proficient at quoting all the parts for a new build and putting it all together in less than a month. My Air Force training helped me understand the way everything worked together at a deeper level so I could pick it up quickly.While at this job, I performed hardware and software troubleshooting, computer and peripheral repair, built custom computers for clients, and sold computers, components, andperipherals.
  • United States Air Force
    Airborne Warning And Control Radar Journeyman
    United States Air Force Jun 1991 - Jun 1995
    Randolph Afb, Tx, Us
    After two years of college-level chemistry at Colorado School of Mines, my electronics technician training started out a little slow with "An atom is made up of protons, neutrons and electrons." By the end of that 9 months, though, I had been exposed to every basic electronic device, both analog and digital, that there is. It's from this training that my tech career started, and I've always tried to understand things at their most basic level because of it. I was taught proper troubleshooting methods that have served me ever since. I loved my job as a technician on the AWACS RADAR. I got to work with VERY high power microwave, high voltage, analog and digital electronics, 10Ghz processors that spanned 10 circuit boards, and other cool stuff. The RADAR system status codes were presented as a string of octal digits that we had to decode to see what bits were set. This set up my ability to convert binary to octal, decimal and hexadecimal and back again.I learned quite a bit about leadership while in the Air Force. I ended up in a leadership role many times through my enlistment. I learned early on that people will follow much easier when you lead by example and they know that you are willing to do the very things you ask of them.
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Brian Jarrett Skills

Windows Server System Administration Linux Troubleshooting Dns Network Administration Active Directory Networking Linux System Administration Python Microsoft Sql Server Sql Cloud Computing Php Postgresql Mysql Windows System Administration Xen Cisco Networking Wireless Networking Cisco Call Manager Voip Dhcp Firewalls Cisco Technologies Databases Integration Os Virtualization Systems Analysis Critical Thinking Analytical Reasoning Remote Troubleshooting Remote Infrastructure Management Testing Virtualization Tcp/ip Switches Cisco Routers Wan Red Hat Linux Openstack Ci/cd Gerritt Ansible Saltstack Qa Vmware Apache Cisco Ucs Software Development

Brian Jarrett Education Details

  • Linux Academy
    Linux Academy
  • Regis University
    Regis University
    Information Technology
  • Lincoln Christian University
    Lincoln Christian University
    Music Theory And Composition
  • On The Job/Field Training - Tinker Afb, Ok
    On The Job/Field Training - Tinker Afb, Ok
    Awacs Radar And Iff Systems Journeyman
  • Community College Of The Air Force
    Community College Of The Air Force
    Avionics Systems Technology
  • Air Force Technical Training School - Keesler Afb, Ms
    Air Force Technical Training School - Keesler Afb, Ms
    Electronics And Awacs Radar Courses
  • Colorado School Of Mines
    Colorado School Of Mines
    Electrical And Electronics Engineering/Physics

Frequently Asked Questions about Brian Jarrett

What company does Brian Jarrett work for?

Brian Jarrett works for Cisco

What is Brian Jarrett's role at the current company?

Brian Jarrett's current role is Infrastructure Engineer - Cloud Engineering and Operations at Cisco.

What is Brian Jarrett's email address?

Brian Jarrett's email address is br****@****uth.net

What is Brian Jarrett's direct phone number?

Brian Jarrett's direct phone number is +191896*****

What schools did Brian Jarrett attend?

Brian Jarrett attended Linux Academy, Regis University, Lincoln Christian University, On The Job/field Training - Tinker Afb, Ok, Community College Of The Air Force, Air Force Technical Training School - Keesler Afb, Ms, Colorado School Of Mines.

What are some of Brian Jarrett's interests?

Brian Jarrett has interest in Horses, Exercise, Home Improvement, Shooting, Reading, Sports, Live Sound And Audio Recording, Golf, Home Decoration, Health.

What skills is Brian Jarrett known for?

Brian Jarrett has skills like Windows Server, System Administration, Linux, Troubleshooting, Dns, Network Administration, Active Directory, Networking, Linux System Administration, Python, Microsoft Sql Server, Sql.

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