Cole Tierney

Jekyll Developer

Personal - Adapt Github's Jekyll blogging platform to deploy on private web servers
Underhill, VT July 2022 – March 2023

Relevant Skills

• jekyll
• liquid
• git
• bash
• markdown
• yaml

Responsibilities

• Detect and mark rendered drafts with liquid templating
• Using liquid, create a page for tags listing the posts where it is used
• Maintain a page that groups posts by category
• Add a page collection customized for displaying code
• Deploy with git
  • Created a git pre-push hook to validate files being pushed
    • Check if a rendered file is a draft and optionally abort push if so
    • Ensure that all tag pages exist and optionally create them
  • Wrote a git pre-receive hook to deploy Jekyll's static site files
    • Uses git read/write tree to merge updates with the remote repo's index file
    • Updates files in the remote work tree

Engineer 2

Nordstrom - Credit data processing division
Denver, CO September 2021 – February 2022

Relevant Skills

• python
• aws
• terraform
• gitlab
• ci-cd
• ebcdic

Responsibilities

• Terraform
  • Worked on a system that sets up and tears down a Kubernetes cluster to isolate credit data operations to comply with SOC2 audits.
  • Contributed to a system to allow developers to work in isolated workspaces
• AWS
  • Monkeypatching lambda functions to test with Pytest
• CI/CD with Gitlab
  • Added pytest step to Gitlab pipelines
• Decoded EBCDIC data received from main-frame computers using python

Software Engineer

Paragon ID
Essex Junction, VT November 2019 – March 2021

Relevant Skills

• python
• perl
• mysql
• ssh
• rfid

Responsibilities

• Developed MySQL/Python software to support Matica RFID production machines
• Ported perl post processing software to Python with tests written with pytest
• Coordinate with France branch to integrate ASK RFID reader
• Tuned client production report generation Perl script to reduce runtime from 2 hours to 5 seconds
• Wrote a perl test suite with Test::More module
• Wrote modules in Perl and Python to validate incoming and outgoing data fields
• Development cycle improvements
  • Introduced test driven development for Perl and Python projects
  • Source control with Git and Bitbucket

Sr. Level Software Engineer, Design to Tapeout Automation

Global Foundries
Essex Junction, VT March 2017 – June 2019

Relevant Skills

• python
• perl
• c++
• bash
• ksh
• aix
• lsf
• mysql
• markdown

Responsibilities

• Instrumental in porting legacy semiconductor design validation ksh scripts from IBM AIX systems to Global Foundries Linux servers
  • Refactoring all ksh validation scripts to use LSF distributed high performance computing in place of LoadLeveler
  • Decoupled ksh scripts from the AIX Andrews File System to be compatible with Global Foundries linux systems
  • Saves the company millions of dollars annually
• Utilized Mentor Graphics Calibre application to access data in semiconductor design files
• Published documentation generated by Doxygen using Bitbucket pipelines
• Introduced markdown as the preferred documentation format which has been adopted by my teams and others at Global Foundries
• Convinced my teams to migrate from RCS and CVS to Git and coached them though the transition
• Designed a system to audit changes in configuration and health of compute clusters in USA, Germany and Singapore
• Porting cluster job management software from Perl to Python
  • Designed and implemented a MySQL interface for communicating with the python LSF queue manager application
  • Developed a declarative python configuration system
• Wrote a Python runtime dependency test system so that long running processes can fail fast
• Wrote a C++ authentication helper app supported by Googletest framework
• Collaboration with admins in Dresden, Singapore and the US
  • Wrote a script to monitor health and configuration change in compute clusters in Germany, Singapore and US
  • When problems were detected, I worked with admins to solve them

Network Engineer

ClearBearing, Inc.
Essex Junction, VT May 2016 – March 2017

Relevant Skills

• monitoring
• linux
• sys-admin

Responsibilities

• Monitored remote sensors across New England using a distributed network of nagios servers
• Linux system management
• Public and Private Cloud Server administration
• Web, database, and load balancing cluster maintenance

Senior Cloud Administrator

OpenTempo, Inc.
Williston, VT April 2015 – February 2016

Relevant Skills

• aws
• rds
• ec2
• elastic-ip
• ssh

Responsibilities

• Supported java infrastructure for company's flagship product
• Developed a cloud infrastructure audit system; instrumental in achieving SOC 1 compliance
  • Monitored production and pre-production systems for configuration and security related changes
  • Facilitated a weekly system health and security audit
• Responsible for a daily monitoring, report analysis, log analysis and issue escalation
  • Scripted tools to automate server data collection
  • Created a tool to generate a network topology map, by automatically discovering servers in the AWS cloud
• Maintained and Operated a Chef/Ruby/Opsworks based cloud infrastructure
  • 20-25 Amazon Linux EC2 Instances, backed by 8-10 RDS Postgres database instances deployed with Elastic IP
  • Improved and simplified system admin team documentation, security and automation
    • ssh connection credentials
    • server addresses
    • permission related tool sharing

Software Developer

Laureate Learning Systems, Inc.
Winooski, VT May 1990 – September 2014

Relevant Skills

• xslt
• xml
• bash
• c
• git
• assembly
• apple-soft-basic
• mm-director

Responsibilities

• Wrote speech-language development software in many programing languages for multiple platforms
• Coordinated with developers and artists to organize the delivery of multimedia assets
• Designed and implemented an API for communication between Flash assets and Adobe Director for Laureate software
• Apple Developer Program Team Agent; managing certificates, app ids, devices, provisioning profiles
• Wrote DLLs in C to provision custom windows language development workstations
• Automation with XML XSLT transformations
  • Product installers and CD-ROM masters
  • Email newsletter
  • Website update
  • Site map
  • RSS feed

Ground Operations Agent

PEOPLExpress Airlines
Dulles, VA & Newark, NJ 1985 – 1986

Relevant Skills

• airline-ops

Responsibilities

• Flight support
  • Ordered Jet A fuel for outbound flights
  • Provided pilots with flight plans
• Passenger support
  • Managed oversold flights
  • Checked in passengers
  • Boarded flights
  • Helped passengers with tight connecting flights

3rd Infantry Drummer

U.S. Army Old Guard Fife & Drum Corps, Presidential Escort
Ft. Myer, VA 1982 – 1985

Relevant Skills

• rudimental-drumming
• ceremonies
• parades

Responsibilities

• Musical duties
  • Performed for arrival ceremonies at the White House
  • Traveled around the country performing for various parades and other events
  • Received an Army Commendation Medal for collaborating with a colleague writing drum solos
• Other duties
  • Participated in the ceremony for the internment of the Vietnam War Unknown Soldier in Arlington National Cemetery
  • Predawn "flags-in" tradition each Memorial Day in Arlington National Cemetery with the 3rd Infantry battalion
• Security clearance: secret

University of Vermont
Burlington, VT 1987 – 1990

• Major: Computer Science
• Minor: German

George Mason University
Fairfax, VA 1985 – 1986

• Major: Computer Science