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 is supported. This note will only be visible to 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)

image

HIGHLIGHTS

  • Distributed systems engineer with 10+ years across AI systems, mobile platforms, MLOps, and cloud infrastructure
  • Built and launched CellarChat™, an LLM-powered agent serving 1M+ users with production-grade evaluation pipelines
  • Architect scalable backend systems powering AI-driven VoIP and eCommerce automation workflows
  • Increased app rating to 4.9★ (10k+ reviews) and drove 25%+ revenue growth via subscription infrastructure
  • Consistently ship products that generate organic daily user acquisition
  • Ranked Top 10 of 10,000+ teams globally in NASA Space Apps Hackathon (AI Voice Assistant)

TECH STACK

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

EXPERIENCE

AI Engineer (Full-Stack)

CellarTracker • Remote (Seattle) Aug 2023 – Jul 2025

  • Built CellarChat™, an LLM-powered chatbot used by 1M+ active users across mobile and web
  • Architected tool-calling pipelines, fine-tuning systems, LLM evaluations, and observability infrastructure
  • Delivered ML-powered recommendation systems on the largest global wine dataset
  • Owned Azure infrastructure and CI/CD pipelines enabling distributed team velocity
  • Increased app rating to 4.9★ with 10,000+ reviews across iOS and Android
  • Implemented Apple Pay subscriptions, driving 25%+ recurring revenue growth
  • Reduced UX friction in cellar workflows through high-leverage product improvements
  • Built features including OCR search, barcode scanning, activity feeds, and support tooling
  • Refactored Redux architecture for scalable and persistent state management
  • Rebuilt analytics pipelines to capture high-signal product and behavioral insights

Mobile Engineer (Full-Stack)

Archlife Industries Software • Remote (Miami) Sept 2021 – Aug 2023

  • Built a trading platform (stocks and crypto) with secure financial integrations
  • Developed admin dashboards for real-time system observability and performance monitoring
  • Delivered core features including portfolio replication, investor discovery, and recommendations
  • Designed and launched social platform features including chat, profiles, and engagement systems
  • Built data visualization systems for asset performance comparison
  • Improved retention via messaging systems, notifications, and calendar integrations
  • Reduced crashes and improved p95 performance using Crashlytics-driven optimization
  • Migrated large-scale React Native codebase from JavaScript to TypeScript
  • Optimized backend interactions to reduce latency and database load
  • Delivered production UI aligned with Figma design systems
  • Resolved complex Bluetooth and map performance issues in telecom applications

Data Science & Machine Learning Tutor

edX (Vanderbilt, UC Berkeley, +24 Universities) July 2020 – Sept 2021

  • Taught 900+ students across Python, ML, and full-stack engineering
  • Maintained 30+ weekly 1:1 sessions, delivering consistent high-quality instruction
  • Supported curriculum used by top-tier universities in technical programs

React Web Developer (Full-Stack)

Georgia Hybrid Landscaping • Atlanta, GA Oct 2015 – Jan 2019

  • Built systems for media uploads, surveys, and automated proposal generation
  • Migrated legacy PHP systems to modern React architecture
  • Generated $500K+ revenue through digital product and marketing systems
  • Built automated email campaign systems using IMAP workflows
  • Developed observability dashboards for analytics, APIs, and databases

EDUCATION

Computer Science & Mathematics Georgia Southern University • Statesboro, GA 2011 – 2012

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

Turfgrass Management University of Georgia • Athens, GA 2013 – 2015

  • Design Principles, Science of Grass, Outdoor Business Management, Landscape Architecture

Data Science & Machine Learning Bootcamp Lambda School (Y Combinator) • Remote 2019 – 2020

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

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

  • Mastered how to command agents, automate workflows, and 100x enterprise-grade software engineering
  • Harnessed the power of RAG, multi-agent systems, OpenAPI, and MCP to build agentic automations

CERTIFICATIONS

  • 2025: Gauntlet AI Engineering Fellowship (G3)
  • 2024: NASA Space Apps Hackathon Finalist (Top 10 / 10,000+)
  • 2022: Ethereum Blockchain Developer
  • 2020: TensorFlow Computer Vision
  • 2020: AutoML Pipelines (DataRobot)
  • 2019: Google Cloud Platform Developer
  • 2019: AWS Microservices Practitioner
  • 2019: Y Combinator Startup School

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 31

  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 8 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 497 25