Pixel-art portrait of Thomas Carr

Thomas Carr

Full-stack product engineer.

Asheville, North Carolina.

What I do

I build modern Rails applications, with frontends in Hotwire, Inertia, and React.

  • Fractional CTO. Architecture, engineering management, and the decisions that let a small team move fast.
  • Freelance development. End-to-end product work — design, build, ship, deploy.
  • Team augmentation. Joining an existing engineering team to add capacity, raise the floor, or take on a specific initiative.

Experience

  1. CorePilot

    2023 – present

    Founding product engineer, head of engineering

    Building an ERP for aviation parts brokers and distributors from zero — CRM, procurement, sales, invoicing, warehouse, inventory. Plus an LLM-powered quote automation system that auto-responds to RFQs.

  2. CGI Federal

    2022 – 2023

    Full-stack developer

    Built Secure Data Fabric, a federal-agency data-sharing platform on a distributed ledger (Hyperledger FireFly).

  3. MWW On Demand

    2020 – 2022

    Full-stack developer, interim CIO

    Maintained a print-on-demand fulfillment system. Stepped in as interim CIO during a leadership transition.

Open source

  1. protocollar/claude_agent-ruby

    Ruby gem

    Ruby SDK for building AI-powered applications on top of the Claude Agent SDK. Wraps the Claude Code CLI with idiomatic Ruby — one-shot queries, multi-turn conversations, permissions, hooks, and MCP tools.

  2. protocollar/fr8

    Go CLI

    Git worktree workspace manager. Spins up isolated development environments with per-workspace port ranges, database prefixes, and environment variables.

Speaking

GitHub

View contributions on github.com/htcarr3