Platform architecture
Co-authored Amazon Fire TV's Live 2.0 re-architecture, drove FireOS 8 Live TV upleveling, and shaped integration plans across multiple teams and middleware vendors.
Dan Hartnett - Orlando, FL
Senior software engineer for the hard parts of product platforms.
I build shipped consumer experiences across Fire TV, AR/VR inputs, sports games, embedded systems, and AI-assisted developer tooling. My sweet spot is turning complex cross-team work into clear, durable systems that people can actually use.
- 14+
- years shipping software
- 5
- teams aligned on Fire TV Live 2.0
- 4
- major EA Sports titles shipped
Demo reel
Work that spans devices, game loops, services, and tools.
AR/VR input systems
Built runtime service layers for device-side features at Meta, finalized native samples, and helped document the Tracked Keyboard SDK for external developers.
Games and real-time UX
Shipped Madden and NBA Live titles, led Skills Trainer and controller GUI systems, built first-party invites, and delivered camera and onboarding technology.
AI-enabled engineering
Built internal LLM integration for local development environments with support for coding, review, and design workflows.
Featured project
Armchair Fantasy Football
A modern fantasy football platform for commissioners and owners to draft, manage, compete, talk, track history, and keep a league moving from preseason to playoffs.
League management
Draft flow
History tracking
Mobile-ready UX
Experience
A record of shipping across major platforms and products.
Jul 2022 - Present
Senior Software Engineer, Amazon Fire TV Experiences
Co-authored the Live 2.0 re-architecture, led FireOS 8 Live TV upleveling, pioneered third-party middleware integration strategies, and directed migration efforts for away-team work.
Jul 2021 - Jul 2022
Senior Software Engineer, Meta AR/VR Inputs
Developed runtime service layers for unreleased device-side features, finalized native Tracked Keyboard SDK samples and documentation, and improved team retrospectives and on-call practices.
Oct 2016 - Jul 2021
Software Engineer II / Senior Software Engineer, Amazon Fire TV
Led Live Profile integration, designed remote button navigation, integrated Android TvInputFramework for Live TV, defined testing standards, and co-authored a VP-approved PRFAQ.
Jan 2012 - Oct 2016
Software Engineer I/II, Electronic Arts Tiburon
Shipped Madden 25, Madden 15, NBA Live 16, and NBA Live 13. Led Skills Trainer and controller GUI systems, delivered dynamic camera tech, reduced launch crashes, and built first-party game invite systems.
May 2009 - Sep 2011
Software Engineer Intern, Northrop Grumman Laser Systems
Designed embedded firmware in C/C++, built DSP and FPGA reprogramming systems, and created custom test GUIs using LabView and C#.
Toolbox
Hands-on depth with the stack around modern product engineering.
Languages
Java, C/C++, C#, Kotlin, TypeScript, JavaScript, HTML, PHP, ASP
Architecture
OOP, SOLID, dependency injection, SOA, RESTful services, integration design
Tools
Android Studio, IntelliJ, Unity, Visual Studio, VS Code, Git, GitHub
Delivery
Agile, CI/CD, TDD, integration testing, code reviews, JIRA, Confluence
Contact
Looking for a senior engineer who can bridge architecture and execution?
I am interested in roles where platform thinking, product judgment, and practical technical leadership all matter.