David Hughes — Senior Full-Stack Software Engineer

Profile

I'm not defined by a stack. I'm defined by what I can do with yours. I've spent nearly 30 years touching every surface — from in-field agricultural telemetry to OS release infrastructure serving a billion people. I design systems at scale that remove friction, hide complexity, and elevate the people who use them. The stack was never the point — vision is. And with AI as an accelerant, I've never felt more unleashed to tackle anything.

Experience · Apple Inc.

Apple Inc. June 2011 – Feb 2026

Principal Full-Stack Engineer · OS Engineering / SWE Program / Developer Tools

Principal architect and DRI for over a dozen production developer tools and systems used across Apple's OS engineering ecosystem — CI/CD, release assembly, submission auditing, and team analytics. Led UI/UX redesign of Apple's primary CI systems and drove cross-organizational projects from technical design through executive review.
Built a React + FastAPI agentic CI assistant (Claude Opus integration, tool-use hooks, full chat UI) enabling engineers to migrate or create build pipelines via natural language — POC to working demo in 6 hours, presented to org director, queued for production roadmap.
Authored Python CLI tool automating CI workflow migration between two enterprise build systems, parsing legacy workflow endpoints into validated API payloads — accelerating an org-wide platform migration.
Shipped production features in Scala and Kotlin (both new languages) using AI-assisted development, unblocking a team and accelerating cross-platform CI migration.
Led React 18 migration of a major production UI — class components to functional architecture, hooks, context, optimized rendering — with zero regression, completed in one day using Claude Code.
Instrumented Node.js and Ruby/React services with OpenTelemetry, implementing an OtelCollector pattern to solve cross-cluster security constraints and publishing telemetry to Honeycomb.io — including custom SLOs and PagerDuty alert pipelines.

Selected Projects · Apple

CI Migration Agent (POC) DRI · System, UI & AI Lead

React + FastAPI chat UI backed by Claude Opus with tool-use hooks into migration and pipeline-creation APIs. Engineers migrate or build CI workflows from natural language — agent validates payloads, resolves errors, executes test runs autonomously. Built in 6 hours from a working Python CLI.

OS Release Assembler DRI · System Lead

Software asset auditor used by release program managers to assemble and publish official OS releases to Apple's OTA infrastructure.

Delivers OS updates to over one billion Apple customers worldwide.

Ticket Analytics Platform DRI · System & UI Lead

Org-wide bug tracker analytics tool with sync/caching layer across internal bug tracker and directory services. Burn-down tracking model surfaces OS milestone risk before it becomes a delivery problem.

Submission Auditor DRI · System & UI Lead

Heuristics-driven auditor syncing bug tracker and build submission data to enforce release change control — preventing unapproved code from landing in a managed OS release.

Disclosure Flagging System DRI · System & UI Lead

Automated software and hardware disclosure tracking with targeted alerts synchronized against Apple's disclosure system of record.

Tech

Languages

Ruby · Python · JavaScript (ES6+) · SQL · Shell

Working Knowledge

TypeScript · Kotlin · Scala

Familiar / AI-assisted

Swift · iOS development

Frontend

React (hooks, context, perf) · Node · jQuery · CSS/SASS · HTML · responsive & mobile-first

Backend / API

Rails · Sinatra · FastAPI · Flask · gRPC · REST

Data

PostgreSQL · Redis · MySQL

Infra / DevOps

Kubernetes · Docker · Bash/Cron · CI/CD pipeline design

Observability

OpenTelemetry · Honeycomb.io · PagerDuty · SLOs · OtelCollector

AI / LLM

Anthropic API · Claude Code · prompt engineering · tool-use & agentic workflows

Platforms

CLI tools · web apps · portals · e-commerce · SaaS · iOS (Swift)

Design

UI/UX · information architecture · data visualization

Earlier Career · 1996 – 2010

Apple Inc. — Contractor Dec 2010 – June 2011

OS Engineering

Built a build/integration web application and API service supporting low-level OS development. Converted to full-time after six months.

Freelance Contractor 1996 – 2010

Full-Stack Developer · Chico, CA · Concept Productions (exclusive retainer, 2005–2008)

Designed and built full-stack web applications, customer portals, e-commerce platforms, APIs, and backend operational systems across agriculture, retail, health, logistics, non-profit, and government sectors — spanning the full product lifecycle from information architecture and UI design through backend systems, database design, and deployment.
Built a real-time crop decision-support system for rice harvest operations: iPod touch input forms in active harvesters, connected via a strategically positioned mesh of mobile Wi-Fi hubs across the field, feeding live moisture readings to a web dashboard for farm managers and dryer operators. Replaced a process that required hours with decisions made in minutes — harvest timing is a narrow window with direct profit impact on yield quality and drying cost.
Designed and built a CRM and brokerage operations platform for a natural gas trading firm — the first software I built professionally, started at 24 while working there in sales. Remained on retainer after relocating, extending the platform with additional services and tooling.
Embedded with Concept Productions web studio on exclusive retainer, 2005–2008, delivering agency-scale client work across industries.

Ventures

Local Elements Co-Founder · Full-Stack Lead

Daily deals platform connecting local businesses with customers through time-limited offers — designed and built before the category went mainstream. Groupon reached market scale ahead of us, but the product was fully functional and locally validated.

LoveTheCause Co-Founder · Full-Stack Lead

SaaS event and volunteer coordination platform for non-profit organizations — scheduling, volunteer sign-up and role assignment, communications, and day-of coordination, designed around the operational reality of non-profit event teams.

Outside Work

Musician — drums and synthesizers, with a particular interest in rhythm, texture, and sound design. Currently building an iOS arcade game in Swift (80s retro arena shooter, think Robotron) using Claude Code — another language I didn't know until I started. Fly fishing, golf, and hiking when not staring at a screen. Happiest surrounded by family, kids, and the dog.