cv: Add more content to career pages

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Dustin 2022-04-20 22:35:27 -05:00
parent 3466dcce6a
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@ -5,16 +5,47 @@ date = 2013-12-01
years = '2013Present' years = '2013Present'
+++ +++
FireMon is a software development company based in Overland Park, KS. As the
System Architect, I focus on building a scalable platform for delivering
FireMon software to customers that is easy to use. FMOS, the FireMon Operating
System, is a mechanism for delivering the FireMon <abbr title="Security
Intelligence Platform">SIP</abbr> to customers and a collection of tools for
deploying and managing the software in a wide array of environments, ranging
from a single server to massive multi-node ecosystems.
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# FMOS Generation II # FMOS Generation II
* Based on CentOS 7 * Based on CentOS 7
* Full-disk encryption using LUKS
* Anaconda installer with custom addon for generating machine-specific LUKS
master key passphrase
* Kickstart script for fully-automated installation
* Used Koji to build RPM packages for first- and third-party software * Used Koji to build RPM packages for first- and third-party software
* Distribution included Ansible for configuration management * Distribution included Ansible for configuration management
* systemd units for controlling FireMon application services
* Configuration policy for deployment of all FireMon software and
third-party dependencies
* Support for single-server and distributed deployments
* Automatically compute JVM heap sizes for each process based on availnable
resources
* Configures Elasticsearch in single-node or clustered mode
* Configures PostgreSQL with optional replication to standby servers
* Configures Kernel NFS server and client to share filesystem data between
machines
* Configures FireMon application server processes, including connection and
authentication information for PostgreSQL, Elasticsearch
* Configures strongSwan IPsec/IKEv2 key management daemon for opportunistic
encryption of Elasticsearch communication
* …
# FMOS Generation III # FMOS Generation III
* Based on CentOS 7, later CentOS 8 (Stream) * Based on CentOS 7, later CentOS 8 (Stream)
* Immutable SquashFS root filesystem image * Immutable SquashFS root filesystem image
* …
# DevOps Team Lead # DevOps Team Lead
@ -25,3 +56,40 @@ years = '2013Present'
* Jenkins * Jenkins
* Used PXE for provisioning on-premises virtual machines * Used PXE for provisioning on-premises virtual machines
* Ansible configuration management * Ansible configuration management
# Internal Tools
## FMOS Web Tools
* Internal application used by software developers and support agents
* Multi-tiered architecture with multiple nodes at each tier to avoid any
single point of failure
* Application Server Tier: Python 3.6/FastAPI
* Storage Tier: GlusterFS
* Index Tier: Elasticsearch
* Cache Tier: Redis
* Message Tier: RabbitMQ
* Worker Tier: Python 3.6/Celery
* Ingress: HAProxy
* User Interface: Typescript/Vue+Vuetify
## QEMU VM Log Socket Proxy
* Component of FMOS End-to-End tests running on-premises using QEMU/libvirt
* Uses kernel *inotify(7)* events to detect virtual machine log channel socket
files appearing on the VM host
* Automatically connects to sockets as they appear
* Receives all data from channel sockets and writes them to a file in the
libvirt storage pool
* Written in Rust
## FMOS ISO Writer
* Internal application used by development and QA teams to write FMOS installer
images to USB disks attached to remote physical appliances
* Accessible via purpose-built, ultra-minimal Linux distribution (Kernel and
Busybox only) delivered by network boot/PXE
* Written in Rust

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@ -4,3 +4,17 @@ date = 2013-01-01
[extra] [extra]
years = '2013' years = '2013'
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Perceptive Software is a software development company in Shawnee, KS. At the
time I worked there, it was a subsidiary of Lexmark International, Inc. As a
member of the System Administrator team, I was responsible for maintaining the
internal IT systems that served employees in the Shawnee headquarters building.
Mostly Windows-based systems, these servers were housed in an on-premises
data center. My primary focus was the consolidation and relocation of systems
to a new campus. This project involved countless migrations of systems from
physical machines to virtual machines or cloud instances, application
redeployments, and sunsetting of disused services.
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## System Administrator

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@ -4,3 +4,43 @@ date = 2011-01-01
[extra] [extra]
years = '20112012' years = '20112012'
+++ +++
Softek Solutions is a software development company located in Prairie Village,
KS. As the IT manager, I was responsible for deploying and maintaining internal
systems used by Softek's software engineers, sales representatives, support
agents, and administrative staff. In addition, I was responsible for ordering
Dell servers and provisioning them with Softek software for delivery to Softek
customers.
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## System Administrator
* Design and implement network-layer security system utilizing Cisco ASA 5510
and 5505 model firewall appliances
* Design and implement L2TP/IPsec Virtual Private Network using Cisco ASA 5510
model firewall appliances and RSA SecurID multi-factor authentication system
* Design and implement remote deployment and monitoring solution for
field-installed appliance products using OpenVPN and Zabbix
* Install, configure, and support nearly 200 physical and virtual application
servers in an integrated, hetrogeneous environment leveraging Microsoft
Windows Server 2008 R2 and Debian Linux 6.0
* Install and maintain server virtualization infrastructure with multiple
independent VMware vSphere Hypervisor 4.1/5.0 host machines, as well as
Microsoft Hyper-V 2008 R2
* Maintain network infrastructure hardware including Cisco Catalyst 4510 Layer
3 switch, and Cisco 2800-series routers
* Automate and schedule Windows and Linux administration tasks using Windows
PowerShell, Bash, and Python scripting languages
* Support and maintain VoIP system using Cisco Unified Call Manager 7 and Unity
7
* Automate deployment of Windows servers and workstations using Microsoft
Deployment Toolkit 2012
* Support Microsoft Active Directory 2008 R2 domain environment
* Support email system using Microsoft Exchange 2007, Cisco IronPort and
Barracuda anti-spam systems
* Install and support Windows XP and Windows 7 workstations for end-users
* Supervise direct reports in their daily tasks of end-user support and
infrastructure maintenance
* Develop and document department standards and best practices to ensure users
could depend on consistent and reliable service of highest quality

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@ -4,3 +4,46 @@ date = 2007-01-01
[extra] [extra]
years = "20072011" years = "20072011"
+++ +++
Supertechs was a locally-owned computer repair shop in Kansas City, MO. I
started work there in college, working on consumer equipment. Customers brought
in all manner of machines from brand new laptops to ancient desktop towers to
fancy all-in-one iMacs. As an in-shop repair technician, I removed viruses and
other malware, fixed misbehaving software applications, replaced failed or
defective hardware, and assembled custom computer systems. Later, I moved into
an on-site role, where I worked with small businesses to deploy server and
network equipment, integrate systems, and maintain applications. Eventually, as
Supertechs grew, I became responsible for the company's internal systems and
network infrastructure, and developed internal software to manage and automate
business-critical operations
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## Network Administrator
* Design and implement multi-site network for locations in Kansas City, KS,
Kansas City, MO, and Omaha, NE
* Install and maintain server virtualization infrastructure using VMware Server
2.0 on Gentoo Linux
* Install and maintain network infrastructure hardware including Netgear
ProSafe switches, Cisco 1841 routers
* Install and maintain Asterisk VoIP system running on CentOS Linux using
Polycom IP phones
* Design and automate business intelligence reports from service data and call
records stored in PostgreSQL and MySQL databases
* Automate and schedule Windows and Linux administration tasks using Windows
PowerShell, Bash, and Python scripting languages
* Administer Microsoft Active Directory 2008 domain—policy configuration and
account operations
* Support email system using Microsoft Exchange 2007
* Supervise repair technician teams and customer service representatives
* Construct comprehensive system infrastructure and usage documentation
## Level II Service Technician
* Design, install, and maintain networks for small businesses, based on Windows
Server
* Upgrade and migrate existing infrastructure solutions to modern systems
* Communicate service recommendations to customers
* Perform computer service tasks such as operating system installation,
application repair, library recovery, and malware removal