RYAN ZERNACH

Full-Stack AI Systems Engineer

Ryan_Zernach_2025_Senior_AI_Systems_Engineer_Remote_United_States

BUILDING RELIABLE

HEALTHCARE AI

SCALING PRODUCTION

LLM SYSTEMS

ENGINEERING TRUSTED

AI INFRASTRUCTURE

DELIVERING INTELLIGENT

PATIENT IMPACT

💪 ADP Gym

Private trainers should spend the space between sessions coaching, not untangling messages and payment reminders. I built ADP Gym so coaches could manage clients while members could pay for sessions and keep their workouts in view—one practical loop for the whole gym.

Related Links
ADP Gym Website

Team

Solo Project

Tech Stack

Timeline

Contributions

💪 ADP Gym

Since filming, I added in-app payments for gym sessions.

Questions?

A client app earns its place by making the day calmer, not by collecting more screens. If you want to unpack the product and engineering tradeoffs behind ADP Gym, schedule a call or send a message. The codebase is private, but I am happy to walk through the decisions.