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Trey Dunn

Lead Application Engineer · Orlando, FL

Summary

Engineering leader and full-stack engineer building for the web since 2009. In Disney Decision Science and Integration (DDSI) since 2021, leading and mentoring 5+ people since 2023. Shipped DDSI's AI code reviewer (Amazon Bedrock) and multi-tenant hosting platform (AWS); tech lead on a rate card utility for all of Disney Advertising. Previously ran a software company, TD CODE, and led BrandCo's development, support, and project management teams.

Experience

The Walt Disney Company

to Present

  • Lead Application Engineer (retitled from Application Engineering Manager) to Present
  • Application Engineering Manager to
  • Senior Application Engineer to
  • Senior Software Engineer (Contract) to
  • Built and shipped DDSI's AI code reviewer for GitLab (Amazon Bedrock): automated reviews when a merge request opens and on each later commit, meta reviews and insights, and on-demand commands from merge-request comments; thousands of reviews across dozens of onboarded projects.
  • Designed the reviewer: language-agnostic through AST parsing across many languages, grounded in a knowledge base with RAG embeddings, and self-improving, as contributor feedback tunes each signal's confidence threshold until it becomes a learned rule; FrugalGPT-style model cascading keeps inference costs down.
  • Built and launched DDSI's multi-tenant hosting platform on AWS, including AWS Cloud Map: any GitLab repo goes live on a Streamlit, Python, Dash (Plotly), or JavaScript runtime, with a growing set of apps already live.
  • Led and mentored 5+ people since Dec 2023 as Application Engineering Manager (retitled Lead Application Engineer in 2026) and resolved questions and decisions for other areas of DDSI, directly or through work produced.
  • Build the ad sales and B2B forecasting workbenches for Disney's cable and digital media content, where digital media forecasting is mainly sports.
  • Tech lead on a DDSI-built rate card utility for all of Disney Advertising.

TD CODE LLC

  • Engineer / Owner to
  • Led design and development of a full-stack data-entry program for a home remodeling company's office staff, tracking 100+ crew members' hours for payroll (Django REST Framework, PostgreSQL, React).
  • Automated real estate agent onboarding with a Chrome extension (Angular 6).

The Walt Disney Company

  • Senior Software Engineer (Contract) to
  • Led the integration of data-driven automated testing with Selenium and Robot Framework (Python).

RSR Group, Inc.

  • Web Application Developer to
  • With a small team, augmented and decomposed an existing COBOL system supporting day-to-day operations (Django).

BrandCo, LLC

to

  • Senior Software Developer to
  • Software Developer to
  • Associate Software Developer to
  • Built Cue, a full-stack transactional email tracking and branding service for Chrome, Firefox, Outlook, and iOS, with a small team that reported directly to company leadership.
  • Interviewed, trained, mentored, and led the development, support, and project management teams; built relationships with clients and partner development teams.

Great Commission Ministries (now Reliant)

  • Web Developer to
  • Built a conference registration system from database to front-end form (PHP, MySQL, JavaScript), and tested and rebuilt event registration services with language internationalization.

Foliotek (LANIT)

  • Software Engineer Intern to

Skills

Leadership
  • Engineering management
  • Mentoring
  • Interviewing
  • Cross-team collaboration
Languages
  • Python
  • JavaScript
  • TypeScript
  • PHP
  • HTML
  • SASS / LESS / CSS
  • Shell scripting
Front end
  • React
  • Next.js
  • TanStack
  • Tailwind CSS
  • shadcn/ui
  • Vite
  • Storybook
  • Angular
  • Knockout.js
  • jQuery
  • Bootstrap
Back end
  • Django
  • Django REST Framework
  • Node.js (Express)
  • Symfony
  • WordPress
Data
  • Snowflake
  • PostgreSQL
  • MySQL
  • Redis
  • SQLite
AWS
  • Lambda
  • Fargate
  • S3
  • Bedrock
  • Cloud Map
  • Route 53
  • Elastic Load Balancing
  • Systems Manager
  • Secrets Manager
DevOps
  • Docker
  • Git
  • GitLab
  • GitHub
  • Heroku
  • Nginx
  • Apache
  • Datadog
  • New Relic
Testing
  • Selenium
  • Robot Framework
  • pytest
  • PHPUnit
  • Codeception
  • BrowserStack
Code quality
  • Ruff
  • mypy
  • Prettier
  • pre-commit
  • Husky
AI tooling
  • Claude
  • Cursor
  • Amazon Q Developer
  • GitHub Copilot

Volunteering

Riders Club of America

to Present

Volunteer engineer

The nonprofit coordinates volunteer drivers to give seniors rides. Since spring 2025, a ground-up rebuild of its platform: 90+ pages and 70+ Django models on a Django REST API with a Next.js front end. Top contributor.

Disney Data & Analytics Conference (DDAC)

to Present

Technology Committee

Five years on the Technology Committee; already at work on the next conference. I help run the website and app for 2,500+ attendees from 250+ organizations and universities. External and internal attendee support, badge scanning, and publishing tools for other committees (agenda, speakers, conference details).

Education

University of Central Florida · B.S. Computer Science, minor in Mathematics, 2015