STATUS: OPEN TO OPPORTUNITIES

Thomas Divelbiss

Senior DevOps Engineer — CI/CD infrastructure, cloud automation, developer platform tooling

6+ years designing and operating build and release infrastructure for large-scale production teams. I treat reliability, automation, and developer experience as the actual job - my work doesn't end when the ticket is closed.

thomasdivel@gmail.com (719) 248-5785
Toolchain
CI/CD & Build
Jenkins, Unreal Horde
Cloud
AWS (EC2, S3, Auto Scaling)
Infrastructure as Code
Terraform (HashiCorp Certified)
Scripting
Python, Bash, PowerShell, Groovy
Artifact & Source
Perforce, JFrog Artifactory, S3, GCP
Observability
Custom monitoring, automated alerting
Pipeline / Experience
PASSED
Senior DevOps Engineer — Jackalyptic Games
SEP 2022 – NOV 2025
  • Architected and owned end-to-end CI/CD infrastructure for a production game studio, partnering directly with the CTO and platform teams
  • Designed and maintained an enterprise Jenkins platform serving 50+ developers, authoring custom Groovy pipelines and Python automation
  • Implemented a targeted failure-alerting system that identified responsible developers and surfaced relevant errors automatically
  • Provisioned cloud-native AWS infrastructure including EC2 Auto Scaling and S3-based artifact storage, with a workload-aware instance-provisioning system
  • Established artifact lifecycle management across S3 and Artifactory, including retention and archival strategy
−15% infra spend MTTR 3h → 45m 50+ developers served
PASSED
DevOps / Build Engineer — Sledgehammer Games
MAY 2019 – APR 2022
  • Maintained and extended a large-scale Python-based CI/CD platform across multiple simultaneous productions
  • Designed automated infrastructure maintenance and resource segregation, improving reliability at scale
  • Coordinated build and release workflows with engineers across multiple studios and time zones
  • Supported the full production lifecycle for two AAA titles: Call of Duty Black Ops Cold War and Call of Duty Vanguard
PASSED
Software Quality Engineer — KIXEYE
AUG 2016 – AUG 2018
  • Delivered server-side tooling bridging QA and backend engineering workflows
  • Built C# instrumentation for scene-change monitoring and load-time measurement
  • Contributed to shipping War Commander: Rogue Assault
Current Build IN PROGRESS

Hands-on infrastructure practice, ongoing. Building depth in the areas my production experience hasn't reached yet, deliberately and out loud rather than papering over the gap.

Writing VPC networking from scratch in Terraform (no modules): subnets, route tables, NAT gateway, IGW, wired and verified by hand rather than templated.

Working through EKS fundamentals: control plane responsibility boundaries, IRSA for pod-scoped IAM permissions, and how VPC CNI differs from overlay networking like flannel.

Practicing against LocalStack and a self-hosted homelab server rather than a production AWS account. This is real practice, not production experience, and I'd rather say that plainly than imply otherwise.

Certifications & Education
Certification
HashiCorp Terraform Associate — Nov 2025
Education
B.S. Computer Science, University of Denver (2010–2014)