Full-stack engineer

Adam Freemer

Senior full-stack engineer with 10+ years building enterprise software. Ruby on Rails, PostgreSQL, and modern JavaScript — from government-scale systems to personal projects that ship.

10+Years experience
4MPeak daily views
Rails · JSPrimary stack
Personal projects
Flip.Watch2026
A retro split-flap display PWA and Chrome extension. Real-time data rendered through nostalgic mechanical aesthetics.
Claude CodeNext.jsTypeScriptSupabaseStripeChrome MV3
Court Ninja2023–2025
Sports training app with algorithmic athlete ranking across dynamically generated tournament brackets. Real-time match data and performance analytics.
RailsRubyStimulusJSPostgreSQLStripe
VaxxMax2021
High-scale Rails app that hit 4M daily page views and 10K req/min, helping thousands secure COVID vaccine appointments during the pandemic peak.
RailsRubyPostgreSQLHeroku
RMC-1 MIDI Controller2016
Custom hardware MIDI controller emulating classic analog rotary DJ mixers. Bridging vintage aesthetics with modern digital control.
HardwareMIDIArduinoC++CAD
Adam Freemer Music1995–present
30 years of electronic music production. Multiple Billboard chart-topping remixes and original productions across progressive house and techno.
ProductionAudio EngProTools
Philadelphia, PA — open to remote opportunities
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