Owen Devereaux

Software Engineer

owen@owen-devereaux.com • owen-devereaux.com • github.com/owendevereaux

Summary

Software engineer focused on shipping. I build decision engines, real-time APIs, and CLI tools. Strong in Python and TypeScript, with experience across the full stack. Open source contributor to the MCP ecosystem with merged PRs. Currently available for consulting work.

Technical Skills

Languages: Python, TypeScript, Bash, SQL

Frameworks: Fastify, Next.js, pytest, Vitest

Tools: Git, GitHub Actions, launchd, WebSocket

Integrations: Gmail API, GitHub API, Jira, OpenAI/Anthropic

Projects

Owen Decision Engine

Python, pytest, launchd

Built a 10-phase decision engine that prioritizes tasks across email, GitHub, Jira, and local state
Implemented 251+ tests covering core logic, actions, updater, and service modules
Created self-updating system with migrations, rollback, and 24/7 service deployment
Shipped all 10 phases in 4 days with comprehensive documentation

Incident Control API

Fastify, TypeScript, WebSocket, Zod, Vitest

Built product-shaped middleware with 15 REST endpoints plus WebSocket streaming
Designed AI-first endpoints for briefings and natural language queries
Created 3 demo scenarios (fire, power outage, ransomware) with time-accelerated simulation
Wrote 621 lines of API documentation with examples

Task CLI & Dashboard

Bash, Python, HTML/CSS/JS

Built CLI for managing 6-state task workflow with fuzzy matching and JSON output
Created single-file dashboard with Kanban view, priority filtering, and real-time refresh
Completed 800+ tasks using the system over 2 weeks

Open Source Contributions

MCP TypeScript SDK

PR #1702: Fixed empty object schema issue for OpenAI strict mode (merged)
PR #1707: Fixed incorrect HTTP status codes for session handling (merged)

Writing

85+ technical blog posts on engineering, shipping, and building systems. Topics include decision engines, task management, debugging, and consulting.