Hello, I'm Jeff

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About Me

Currently building reliable, high-impact software at VIAVI Solutions, with a focus on full-stack engineering, MCP development, developer tools, and AI agents.

Portrait of Jeffrey Hoelzel Jr.

Jeffrey Hoelzel Jr.

AI/ML, Software, and Data Engineer

AI/MLFull-StackData Systems

Education

Recently earned a B.S. in Software Engineering from Northern Arizona University.

Technical Expertise

Experience with full-stack development, applied AI/ML, APIs, and data pipeline engineering.

Mission

I'm a Software Engineer focused on building practical, dependable technology that solves real problems. At VIAVI Solutions, I contribute to full-stack applications, MCPs, developer tools, and AI agents—combining strong engineering fundamentals with an interest in creating useful, measurable outcomes.

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Featured Projects

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PepSeqPred landing page

AI, ML, AUTOMATION

PepSeqPred

Epitope Prediction Pipeline

A deep-learning workflow that predicts antibody-reactive peptide regions from sequence data for rapid serology research.

PythonPyTorchESM-2Sequence ModelsOptuna +5
ArtemiS3 landing page

AI, FULL-STACK, DATA

ArtemiS3

NASA and USGS S3 Search Platform

An intelligent search platform for NASA and USGS AWS S3 datasets that improves discovery and retrieval speed.

SvelteTypeScriptTailwindCSSPythonFastAPI +8
Screenshot of LesionShiftAI project webpage

ML, DATA, COMPUTER VISION

LesionShiftAI

Skin lesion classification

A research benchmark and framework for cross-dataset skin lesion classification under extreme dataset shift.

PythonPyTorchTorchvisiontimmResNet50 +4