Skip to content
View Zernach's full-sized avatar

Organizations

@BloomTech-Labs @archlife-industries @spotify-song-suggester-2 @All-Day-Physique @miami-hack-week-team @react-native-responsive-sizes @Florianopolis-NASA-Space-Apps @gauntlet-g3-zapcut

Block or report Zernach

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don't include any personal information such as legal names or email addresses. Markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
zernach/README.md

Ryan Zernach

Senior Software Engineer (Full-Stack)

Mobile Apps, Agents, MLOps, Websites, DevOps, Cloud

Ryan Zernach Website

Highlights

  • Strategic full-stack engineer with 10+ years of experience in Mobile Apps, Agents, MLOps, Websites, DevOps, Cloud
  • Shipped front-end & back-end of CellarChat™ chatbot to 1M+ members and established LLM evaluation pipelines
  • Architected distributed systems for eCommerce platform, powered by agentic outbound phone calls with AI / LLM
  • Boosted mobile app ratings to 4.9★ (10k+ reviews) & lifted recurring revenue by 25%+ w/ Apple Pay subscriptions
  • Awarded Top 10 of 10,000 international projects in the 2024 NASA Space Apps hackathon with AI Voice Assistant

Tech Stack

Category Technologies
LLMOps / RAG / MCP / Voice Agents / Evaluations LangChain / GenAI / OpenAPI / Semantic Kernel
ML / Data Machine Learning Pipelines / Computer Vision / Python / PyTorch / PySpark / ETL / TensorFlow
Cloud / DevOps Cloudflare / AWS / Azure / GCP / CloudOps / DevOps / Docker / Kubernetes / Terraform
Data & APIs Vector Databases / SQL / GraphQL / NoSQL / Git / Bash / Cursor / Claude / Orchestration
Auth & Security AuthN / AuthZ / OAuth / Identity / Security
Mobile React Native / iOS / Android / Swift / Kotlin / Expo
Frontend / Backend TypeScript / React / Redux / Node / Next / Streamlit / FastAPI / Express / Rust / .NET / C# / Go / Java / Ruby
Realtime / Infra WebSockets / Queues / RabbitMQ / Redis / WebRTC
Web3 Blockchain / dApps / Wallets / Ethereum / Solana
Payments Apple Pay / Subscriptions / Stripe / IAP / Webhooks
Growth & Comms SEO / Marketing Automations / Campaign Attribution / IMAP / SMTP / Emails / SMS / Twilio / Push Notifications
Observability Systems Observability / Analytics / Admin Dashboards

Certifications

  • 2025: Gauntlet AI Engineering Fellowship (G3)
  • 2024: NASA Space Apps Hackathon Winner
  • 2023: GenAI with Large Language Models
  • 2022: Ethereum Blockchain Developer
  • 2021: Mosh React Native Academy
  • 2020: Machine Learning Pipelines (DataRobot)
  • 2020: TensorFlow Computer Vision Developer
  • 2019: Google Cloud Platform GCP Developer
  • 2019: AWS Microservices Practitioner
  • 2019: Y Combinator Startup School

Education

AI Engineering Fellowship (G3)Fall 2025
Gauntlet AI • Remote • Austin, TX

  • Invested 10 weeks and 100 hours per week into intense curriculum of AI engineering bootcamp
  • Harnessed the power of RAG, multi-agent systems, OpenAPI, and MCP to build agentic automations
  • Mastered how to command agents, automate workflows, & deliver enterprise-grade software solutions

Data Science Software Bootcamp2019 – 2020
Lambda School • Y Combinator • Remote

  • Deployed Supervised/Unsupervised Machine Learning Models, Recommendation Engines
  • Computer Vision (CV) Models, Time-Series Forecasting, Natural-Language Processing (NLP) Pipelines
  • Python, SciKit-Learn, PySpark, Data Engineering, PostgreSQL Databases, Back-End APIs (Flask / FastAPI)

Computer Science & Mathematics2011 – 2012
Georgia Southern University • Statesboro, GA

  • Visual Basic, Calculus, C, C++, R, Statistics, Data Structures, Programming Principles, Linear Regression

Experience

AI Engineer / Mobile Engineer (Full-Stack) • CellarTracker • Remote • Seattle — 2023 - 2025

  • Wrote CellarChat™ LLM chatbot for 1M+ active members using TypeScript front-end & Python back-end
  • Architected OpenAPI tool-calling pipeline, fine-tuning pipeline, LLM evaluations, & observability systems
  • Integrated intelligent ML-powered recommendations for world’s largest online database of wine reviews
  • Helped to boost app store ratings to 4.9★ average with 10,000+ verified 5-star ratings on iOS and Android
  • Embedded Apple Pay subscriptions in the React Native app to generate additional 25%+ recurring revenue
  • Implemented animations, barcode scanning, activity feed posts, ML recommendations, & OCR image search
  • Streamlined the Redux store for fast, efficient, and persistent global state management between app sessions
  • Rebuilt the React Native app’s analytics implementations for tracking critical user interactions and app behavior

Mobile Engineer • Demosphere • Remote • Washington D.C. — 2022 - 2023

  • Transitioned entire codebase from Javascript to Typescript for increased long-term maintainability
  • Implemented updates to front-end React Native according to the design team’s mockups in Figma
  • Improved computational and network efficiencies by reducing load times and runs to the database
  • Evaluated Google Crashlytics to reduce edge case crashes and improve p95 stability and performance
  • Iterated on group chat features, push notifications, and native calendar sync to improve user satisfaction

React Native Engineer (Full-Stack) • FinEquities • Remote • Miami — 2021 – 2022

  • Built fintech app to compete with Robinhood by exchanging stocks/crypto & connecting bank accounts
  • Wrote the data-visualization logic for viewing and comparing the performance of different stocks/crypto
  • Built social network features, such as direct chat, user profiles, posts, likes, emojis, & threaded comments
  • Constructed core mobile app functionality, including: copy portfolio, trending investors, & suggested stocks
  • Custom-built a companion admin web dashboard to monitor mobile app performance & infrastructure health

Data Science Tutor / Teaching Assistant • edX • Vanderbilt University, UC Berkeley, +24 others — 2020 – 2021

  • During pandemic, taught 900+ online college students Python, machine learning, TypeScript, websites, & databases
  • Managed busy schedule of remotely teaching 30+ university students per week in 1:1 setting (one hour per person)

React Web Developer (Full-Stack) • Georgia Hybrid Landscaping • Atlanta, Georgia — 2015 – 2019

  • Converted PHP websites to React and marketed businesses to generate $500k+ of gross sales in 3 years
  • Managed online presence for small businesses, including web analytics, Google AdSpend, & email campaigns
  • Engineered user experience of uploading videos/images, survey questions, and receiving PDF pricing proposal

Personal Projects

Founding Full-Stack Engineer • Archlife Industries Software • Remote

  • Created my own personal mobile apps to solve my problems & new users sign up everyday
  • Setup custom observability dashboards for marketing, analytics, API logs, & database admin
  • Deployed agentic endpoints for facilitating merchant onboarding and inventory management
  • Automated LLMs to advertise on Reddit by reading threads and commenting on the best posts
  • Built end-to-end MLOps pipelines to enable low-latency inference and continuous model updates
  • Productionized chatbots using RAG, agentic tool-calling, voice-powered commands, & interactive maps

Thank you for reviewing my resume! Ready to interview me? Let's chat.

Pinned Loading

  1. react-native-responsive-sizes/react-native-responsive-sizes react-native-responsive-sizes/react-native-responsive-sizes Public

    Simple & lightweight react-native package to help you make your mobile app look terrific on every screen size.

    TypeScript 30

  2. Airline-Price-Predictions Airline-Price-Predictions Public

    Plotly Dash HTML Python Flask site for user to interact with a trained machine learning model to predict the round-trip cost of flights — based on 9 million 2018 Domestic Flight Prices in the Unite…

    Jupyter Notebook 9 1

  3. Flask_Boilerplate_GCloud_Website_Template Flask_Boilerplate_GCloud_Website_Template Public

    Use this template for rapidly launching a clean Python Flask website to Google Cloud's App Engine!

    HTML 2 1

  4. Ryans_Recommendations Ryans_Recommendations Public

    📱 Mobile App Development Installation Guide — 💻 Everything Needed for React Native Mobile App Development on a New MacBook

  5. AppAndFlow/react-navigation-bottom-sheet AppAndFlow/react-navigation-bottom-sheet Public

    TypeScript 490 24