Titus Coleman

Los Angeles, CA USA

310-464-4599

dev@tituscoleman.com

Cloud-native systems engineer developing solutions from concept to data model and API design through to production.

Skills

Infrastructure & Tools:

macOS, Windows, Linux, Docker, Kubernetes, Helm, OpenNebula, Terraform, Packer, AWS, GCP, Google Workspace, PostgreSQL / MySQL, GitHub Actions, Grafana, Artifactory, SAML & OIDC, Git, CMMC compliance baselines

Programming Languages:

Go, TypeScript, Bash, PowerShell, Rust, Swift

Libraries / Frameworks:

React, Vite, Node.js, CSS

Projects

AWS Research and Engineering VDI Studio

AWS RES · Terraform · EC2 · EFS
Vast Internal Solution
  • Deployed AWS Research and Engineering Studio to give engineers on-demand High Performance Compute (HPC) virtual desktops sized for Thermal Desktop and MATLAB.
  • Automated the VDI image builds so desktops provision from a repeatable, versioned image instead of manual per-machine setup.
  • Mapped per-user EFS volumes into each session so files follow engineers onto any desktop.
  • Managed networking, IAM, storage, and supporting resources as Terraform.

Grove: macOS CI Runner Platform

Go · TypeScript · Aurora PostgreSQL · K8s · Helm
Vast Internal Solution
  • Full-stack platform for self-hosted macOS GitHub Actions runners: provisions an ephemeral VM per job on each macOS host, records per-VM time-series metrics, and drives Packer image builds from a GUI.
  • Designed the Aurora PostgreSQL data model (hosts, jobs, VM lifecycle, metrics) and the REST API contract the frontend consumes.
  • Two independently deployed containers: a Go backend-for-frontend serving a Vite/TypeScript frontend, and a runner service talking to the GitHub App.
  • Google Workspace OIDC, Artifactory dependency proxy, Helm deployment on Kubernetes.

Custom Networking EKS cluster migration

AWS · Karpenter · ArgoCD · Kubernetes
Vast Internal Solution
  • Migrating clusters to utilize CGNAT CIDR range to alleviate IP exhaustion.
  • Coordinating with various stakeholders to minimize downtime to scheduled maintenance periods and ensure continued communication with services.
  • All changes committed with Terraform via Spacelift and manifests deployed via ArgoCD.

Passport: Active Directory Password Portal

.NET · LDAPS · Vite · SAML · Docker
Vast Internal Solution
  • Employee self-service password resets against Active Directory over LDAPS, removing help-desk involvement from routine resets.
  • Google Workspace SAML sign-in, rate limited behind a reverse proxy, CI/CD pipeline delivers docker image to Artifactory and EC2 instance.

Relevant Work Experience

IT System Administrator

Vast, Inc.

Long Beach, CA

08/2024 - Present

  • Serving a mixed Linux, Windows, macOS, and iOS/iPadOS fleet (2000+ devices) managed with Puppet, JumpCloud, Jamf Pro, Active Directory, FleetDM and Google MDM.
  • Architect and deploy FIPS-compliant infrastructure-as-code in AWS GovCloud using Terraform, securing IAM, networking, storage, monitoring, and disaster recovery. Strictly version-controlled and reviewed like application code.
  • Instrument systems with Grafana-based logging and metrics, giving engineering leadership visibility into system health and delivery; document in Confluence with project tracking in Jira. Alerting via PagerDuty integration.
  • Implement technical controls aligned with CIS and CMMC, and remediate critical vulnerabilities through systematic patch deployment with continuous scanning and validation.

Account Manager

Solid Commerce

Los Angeles, CA

11/2016 - 03/2018

  • Integrated third-party marketplace APIs with an internal inventory management platform, translating client requirements into working account-specific technical solutions.
  • Served as primary technical point of contact for a book of premium ecommerce accounts, debugging integration issues and relaying reproducible bug reports to engineering.
  • Managed onboarding and training for new clients to ensure seamless platform adoption and successful merchant activation.

System Administrator

Lunarpages.com (acquired by HostPapa)

Los Angeles, CA

07/2007 - 04/2012

  • Scripted and automated server builds, backups, reporting, and routine maintenance, cutting repetitive manual work across shared, VPS, and dedicated server platforms.
  • Managed the full lifecycle of customer hosting accounts from provisioning to decommissioning.
  • Provided Tier 3 support, troubleshooting hosting, domain, email, database, and control panel issues at the system level.

Selected roles shown. Full work history on LinkedIn.

Certifications

CompTIA Security+

Status

AWS Certified Security - Specialty

Status
More

Education

Associate's - Computer Networking

Anthem College