Resume: Hristos N. Triantafillou

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→ Who Am I? What Do I Do?

• Senior DevOps, Build And Release Engineer
• A passion for automation as well as testable and repeatable systems leveraging:
  • Terraform, including work with the AWS, Artifactory, and GitLab providers
  • Deployment tooling built upon Kubernetes and Docker Swarm
  • AWS infrastructure
  • Advanced Docker utilization, including multi-architecture images
  • Ansible for complete management of my personal fleet of servers
• Building and maintaining CI/CD systems and patterns
  • Jenkins CI – part of the DotCi team which built a yaml-based interface to jobs and leveraged Docker Swarm for build clusters
  • Buildbot – built a custom DSL for personal and private jobs
  • GitLab CI/CD – custom, extensible pipelines with a centralized backbone for an Enterprise CI/CD platform in AWS
• Over 15 years of UNIX system experience and knowledge, specializing in Linux systems
• Extensive VCS experience; I’ve managed organization-wide installations of GitHub Enterprise as well as GitLab CI/CD systems
• Application development with: Python, Golang, Javascript, Lua, and more
• Application and script optimization
  • Game design demands highly optimized scripting in order to deliver the best performance to users
  • I try to develop software as if it’s going to be used on a decades-old machine
• Linux application deployment using the AppImage platform and Docker as a reproducible build environment
• Game design and scripting, including embedded Lua with C++ and Godot’s GDScript
• Build, manage, and maintain a popular Open Source software and community

→ Project Portfolio

• I have written open source applications that are hosted on several popular code forges:
  • GitLab
  • Sourcehut
  • GitHub
• The Modding-OpenMW GitLab organization is an open source project containing dozens of Lua scripts and other modifications for the OpenMW game engine
  • I’m developing a CI/CD system that is a powerful platform for experienced programmers and casual content creators alike to share their works with the world
  • This org is the home of Modding-OpenMW.com, a website viewed by over 3 million users each year (started as a for fun project, now recognized all over the world)

→ Work History

→ January 2025-Present: Senior Platform Engineer, Pearl Health

• Coming soon!

→ November 2022-January 2025: Senior Build and Release Engineer, Availity

• Implemented a repeatable and scalable deployment for a self-hosted GitLab CI/CD platform using Terraform and AWS resources
• Developed a modular, extensible Enterprise CI/CD system that heavily utilizes Docker and Terraform
• Leveraged Artifactory for artifact storage and promotion
• Created documentation-as-code workflows with D2lang
• Hire, mentor and guide junior team members
  • Onboard them into our systems
  • Help them develop advanced skills

→ October 2015-November 2022: Release and Production Tools, Groupon

• Developed an internal deployment tool
  • Automated various checks and gates for a smooth developer UX
  • Written with Golang
  • Ported the codebase backend from Docker Swarm to Kubernetes
• Built out a very high volume (10k+ jobs per day at its height) Jenkins CI system backed by Docker Swarm clusters for clean, repeatable build environments
• Drove Ansible adoption on my team and in my organization in general
• Owned tooling that were vital to the core workflow of every developer
  • GitHub Enterprise
  • Gitosis
  • Artifactory (across three geographical regions)

→ October 2014-October 2015: Application and Developer Support, onShore Development

• Handled the deployment, upgrading, and general support of a complex asset management software written in Common Lisp with PostgreSQL
• Turned a manual release and package process into an automated one with Python, Ansible, and Jira (as a source of truth for data about client installations)
• Worked with the development team to troubleshoot customer issues in the field

→ January 2014-October 2014: Contract Application Development and IT Services

• Leveraged Django and related libraries to create complex web applications
  • E-commerce
  • Blog engine
  • Coaching services
  • User management systems
  • Inventory/Asset Control
• Application configuration and deployment via Ansible
• Created custom .deb packages for application distribution as needed

→ March 2013-December 2013: NOC Manager & Infra Lead, Sleepy Giant Entertainment

• Created roadmaps for new and existing projects
• Managed infrastructure teams
• Guided DevOps engineers in their day to day tasks
• Coordinated directly with clients to identify and meet their needs of the infrastructure department
• Oversaw all infra department operations
• Interviewed, hired, and managed engineers for the tier one support department
• Built an onboarding process for new employees
• Solidified and documented an off-boarding process for departing employees
• Prepared NOC runbooks for each project
  • Outlined all relevant procedures including: DR, maintenance, load testing, and more
• Worked with project managers to gather details about each project
  • Organized and streamlined processes
• Created a 24x7 support schedule
• Managed a team of 24x7 NOC support specialists
• Built a dashboard system for reporting key metrics using Graphite, collectd, Kibana, and more
• Developed config management using Chef
  • Wrote and tested various cookbooks
  • Worked with and supplemented community cookbooks

→ April 2011-March 2013: IT Specialist, High Voltage Software

• Built workstation hardware (desktop PCs for designers, artists, and programmers)
• Deployment of software installations
  • Autodesk, Adobe, Microsoft tooling
• Server setup and deployment
  • Samba, SVN, HTTP, FTP
• Devkit provisioning and inventorying
• SVN workflow optimization
  • Implemented various performance improvements for internal Subversion infrastructure
• Created a Python+Django-based inventory management system
  • Used to track and interact with our internal game library, hardware/dev kit inventory, and software licenses

→ December 2009-April 2011: Server Provisioning and Support, WiredTree

• Fully-managed VPS and dedicated server hosting on a tier III support team
  • All aspects of the server OS and included software (cPanel) were supported
• I specialized in customer migrations, moving sites and their data from other providers and platforms with little or no downtime
• Contributed to several process and technical how-to guides for custom installs
• Handled server provisioning, building, upgrading, and maintenance at our downtown Chicago data center

→ February 2008 – December 2009: Level 1, 3 Support, MidPhase

• Level one support for shared server hosting clients
• Simultaneously manage support phone calls, live chats, and support ticket queues
• Promoted to the tier III department within six months
• As a tier III tech I managed all VPS and dedicated server accounts
• Shared platform issues were escalated to my team
• Handled a myriad of spam/abuse issues, helped users deal with compromised systems
• Mostly Linux servers with a few Windows boxes in the mix

→ October 2005 – February 2008: Retail Representative, Nintendo of America

• Serviced over 140 major retail locations in the Metro-Chicago area
• Installed, repaired, and updated interactive display hardware units
• Cleaned and merchandised product on the selling floors
• Provided on-site training, product demonstrations, and special event appearances
• Worked at E3 2006 as a display tech demoing the Brain Age series of Nintendo DS games
• I was part of the setup and tear down crew for Nintendo’s area
• Offered a job in Redmond at Nintendo as a display support tech in their corporate call center

→ August 2003 – October 2005: Assistant Store Manager, EB Games

• Promoted to Assistant Store Manager within 10 months of joining their team
• Handled inventory control, scheduling, hiring, managing of bank transactions, and floor plan setup
• Offered my own store by October 2005

→ Education

→ January 2003 – June 2003: Waubonsee Community College

• Studied Music History and Theory, as well as Sociology

→ Yorkville High School

• High School Diploma
• Competed on the school Speech Team
  • Placed 6th at conference for Dramatic Interpretation
  • Placed 4th at regionals for Humorous Interpretation
• Played in various school bands
  • Concert band
  • Marching band
  • Jazz band
  • Madrigal Brass
  • Pep band
  • Full Orchestra
  • Competitive Duet

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