RYAN ZERNACH

Healthcare AI Systems Engineer

Ryan_Zernach_2025_Senior_AI_Systems_Engineer_Remote_United_States
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AUTO-BIOGRAPHY

FOREVER WORK-IN-PROGRESS
GROWTH & EXPLORATIONAGENTIC AI SYSTEMSHEALTHCARE TECHNOLOGYFULL-STACK PRODUCTSLLM INFRASTRUCTUREMACHINE LEARNING
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Ryan Zernach portrait
TECH STACKLLM Infrastructure & Product Engineering
EXPERIENCE10+ Years
LAST UPDATED: MARCH 31, 2026
PHASE 01CURIOSITY ENGINE

Mother always told me to never stop exploring

As a full-stack software engineer with a lifelong learner operating system, I’ve developed a deep appreciation for human diversity, resilient systems, and products that must work across cultures and contexts through exploring new places, pushing me to build for humans, not just features, and strengthening the kind of pattern recognition that happens far beyond the screen.

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The Journey of Loading a WebpageRead postAI Engineering MethodologiesRead postOpen-Source ContributionsRead postHardware is HorsepowerRead post
Ryan Zernach in Patagonia, 2024
Patagonia, 2024. StarLink connectivity in the wilderness.
PHASE 02eCOMMERCE FOUNDATIONS

Tech nerd creates products and services that generate revenue

After studying Computer Science at university, I picked up React in its infancy and started managing the web presence for local businesses. This was where design and engineering collapsed into the same feedback loop, and where UX, performance, and delivery started to feel like one discipline instead of separate jobs.

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Customized Christmas LightsRead postGeorgia Hybrid LandscapingRead postGeorgia Southern UniversityRead postUniversity of GeorgiaRead postCost Plus ProcessingRead postLandscape SupplyRead post
Ryan Zernach at React Miami, 2023
React Miami Convention, 2023. TypeScript, ESLint, Jest, and more
PHASE 03MACHINE LEARNING

Artificial intelligence is merely highspeed mathematics

I decided to go deep on data science and machine learning, then got a full-time job teaching 900+ online college students during the pandemic. This experience taught me how to make complex ideas practical, simplify the stack without dumbing it down, and communicate with precision under real time constraints.

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Ryan Zernach remote work setup, 2020
Github commits history, always on the lookout for new challenges.
PHASE 04STARTUP ORBIT

Startups trained me to move fast without losing quality

I’ve shipped full-stack products to millions of global users on fully distributed teams, operating at production scale without sacrificing quality. At CellarTracker, I spearheaded the CellarChat™ feature and led the LLM evaluations and observability systems. I was an intricate part of helping to drive the native mobile app ratings to 4.9★ average.

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CellarTrackerRead postDemosphereRead postFinequitiesRead post
Ryan Zernach at Miami Hack Week, 2023
Miami Hack Week 2023: where bold ideas are tested in public
PHASE 05MISSION CRITICAL

International collaboration became a force multiplier

Top 10 out of 10,000 global submissions, our team in Florianópolis, Brazil was awarded finalists in the NASA Space Apps Challenge by building a voice-controlled wildfire map powered by NASA satellite data. We demonstrated how clear mission alignment accelerates momentum.

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GROW: Worldwide FinalistsRead postZencoder AdminRead postMarriage DAORead post
Ryan Zernach, Florianopolis, Brazil, 2024 NASA Space Apps Challenge
Florianopolis, Brazil, 2024. A fast team, a hard problem, and a mission worth building for.
PHASE 06CURRENT CHAPTER

I am channeling agentic AI toward healthcare outcomes

Nowadays, I am surfing the wave of agentic AI into the sunset. Thankfully, it feels more like the sunrise than the sunset because in Fall 2025, I was admitted into Gauntlet, a prestigious AI engineering fellowship, where I learned that I can build any software in the world with AI-native tooling and spec-driven development.

My goal now is to apply that speed and rigor to healthcare: building agentic systems that reduce administrative drag, support clinical decision-making, and stay grounded in trust, safety, and real accountability for patient outcomes.

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Ryan Zernach at Gauntlet AI graduation, December 2025
Gauntlet AI graduation, December 2025. The next chapter is AI-native software engineering.