Forward Deployed AI Engineer at Oscar Health

AI for healthcare teams

5+ years across data engineering, ML, and AI

Snehit Vaddi

At Oscar Health, I build tools for code review, claims analytics, and provider contract extraction. Previously at ModMed, I built clinical AI for 15,000+ providers. My research covers LLM reasoning, hallucination detection, and computer vision.

Stuff I've Built

From self-driving cars to medical AI and agentic applications.
Here's what I've been building.

Resume2Portfolio
🌐 Web Apps2025

Resume2Portfolio

Next.jsAI+2
MEDHALT
1
🧠 GenAI & LLMs2025

MEDHALT

PythonNER+2
AI Influencer Bot
🤖 Agentic AI2026

AI Influencer Bot

PythonLLM+2
RAG-Anything
4
🧠 GenAI & LLMs2024

RAG-Anything

PythonLangChain+2
HackSwipe
🌐 Web Apps2026

HackSwipe

JavaScriptWeb App+2
H1B Wage Finder
1
🌐 Web Apps2026

H1B Wage Finder

PythonData Analysis+2
WhatsApp R2Park
🌐 Web Apps2026

WhatsApp R2Park

Node.jsWhatsApp API+2

Research & Publications

Published and under-review work across LLM reasoning, interpretability, and applied computer vision.

arXiv2026Under Review

Can Small Models Reason About Legal Documents? A Comparative Study

LLMsReasoningLegal AISmall Models
arXiv2026Under Review

Do Hallucination Neurons Generalize? Evidence from Cross-Domain Transfer in LLMs

LLMsHallucinationInterpretability
Plants2025PublishedFirst Author

Detecting Escherichia coli Contamination on Plant Leaf Surfaces Using UV-C Fluorescence Imaging and Deep Learning

Computer VisionYOLOv11AgricultureFood Safety
IEEE ICCMST2023Published

An Effective Model for Smartphone-Based Pothole Classification and Admin Alerting System

Computer VisionEdge AIMobile
IEEE2022Published

ECG-Based Early Heart Attack Prediction Using Neural Networks

Healthcare AINeural NetworksTime SeriesCardiology

My Toolkit

The technologies I use to turn caffeine into code

🔧

Agent Tools & Evaluation

MCP
Cube
Langfuse
LLM-as-Judge
Codex
OAuth2
Prometheus
PagerDuty
🤖

GenAI & LLMs

LangChain
OpenAI API
Claude
RAG Systems
Hugging Face
Fine-tuning
Prompt Engineering
Vector DBs
🧠

Machine Learning

TensorFlow
PyTorch
Keras
Scikit-learn
Computer Vision
NLP
Deep Learning
MLOps
⚡

Data Engineering

Python
SQL
PySpark
Kafka
Airflow
AWS (S3, Redshift)
Snowflake
dbt
💻

Development

Python
TypeScript
React/Next.js
FastAPI
Node.js
Swift (iOS)
Git
Docker
☁️

Cloud & Tools

AWS
GCP
Vercel
GitHub Actions
Jupyter
VS Code
Linux
Streamlit

Where I've Worked

AI tools at Oscar Health, clinical systems at ModMed, and earlier work in data engineering and research.

InternshipJun 2026 - Present

Forward Deployed AI Engineer

  • ▹Built an MCP code review server covering 900+ pull requests. It flags server-side violations, missing auth scopes, and prompt-injection risks, with Langfuse traces on every run. Reduced review time by 30% and caught 40+ compliance issues on its first day.
  • ▹Built a Cube semantic layer over dbt, exposed through MCP with OAuth2 scopes, for natural-language queries over governed claims metrics. Evaluated answers against a 500-query golden set to catch metric drift.
  • ▹Built multimodal extraction for 14,000+ provider contracts. Agents re-check source pages when validation fails or answers conflict, improving first-pass accuracy from 82% to 95%. A labeled evaluation set gates model and prompt changes.
  • ▹Delivered plugins, MCP servers, and skills for legal, finance, and people teams, and rolled out Codex to engineering with admin policies and per-user usage tracking. Added Prometheus metrics, Langfuse traces, and PagerDuty escalation, bringing detection of degraded tool calls below 2 minutes.
MCPCubedbtOAuth2LangfuseLLM-as-JudgeCodexPrometheusPagerDuty
Full-timeFeb 2025 - Apr 2026

AI Engineer, GenAI Applications & LLM Systems

ModMed•Boca Raton, FL (Remote)
  • ▹Shipped Clinical Ambient AI Scribe serving 15,000+ providers across 11 specialties (400K+ daily encounters), automating 70% of documentation via real-time transcription + LLM SOAP generation
  • ▹Built agentic document pipeline (OpenAI Agents SDK + fine-tuned Qwen2-VL VLM) routing 10M+ clinical pages/month, replacing a $400K/month vendor with a $20K in-house system (95% cost reduction)
  • ▹Built Text2SQL + clinical knowledge graph over ModMed’s EHR warehouse (200+ tables, pgvector embeddings), cutting analyst request volume by 60%
  • ▹Architected production multi-agent RAG with LoRA-finetuned SLMs, hybrid pgvector + BM25 retrieval, and cross-encoder reranking, achieving 94% retrieval precision across 50K+ clinical documents
  • ▹Open-sourced MEDHALT for clinical hallucination detection (DeBERTa NER + LLM-as-judge) achieving 92% accuracy vs. GPT-4, with MLflow tracking and golden-set regression testing
  • ▹Shipped LangChain/LangGraph/Claude monitoring framework for Scribe quality, cutting incident response to under 5 minutes with PHI-safe pipelines and prompt-injection filtering
PythonLangChainLangGraphVLMsRAGpgvectorDatabricksKubernetesMLflow
InternshipMay 2024 - Jul 2024

AI Software Developer Intern

GeoSpider AI•USA (Remote)
  • ▹Built LangGraph multi-agent RAG that autonomously resolved 65% of customer tickets across a 50K-doc knowledge base, with dynamic routing and LLM-as-judge scoring
  • ▹Built LLM-as-judge routing layer with dynamic few-shot prompting, improving helpfulness from 43% → 76% and relevance by 30%
  • ▹Designed FAISS + keyword hybrid search with semantic reranking, achieving 92% recall@10, serving 150+ concurrent users via vLLM with 40% p95 latency reduction
  • ▹Implemented Redis-backed multi-turn agent memory and FastAPI inference gateway with fallback logic and structured logging
LangGraphFAISSvLLMRedisFastAPILLM-as-Judge
ResearchFeb 2023 - Dec 2024

Graduate Researcher, AI/ML

University of Florida•Gainesville, FL
  • ▹Developed hybrid YOLOv8-ViT model improving small-object detection by 15% with Grad-CAM / EigenCAM explainability. Published at SPIE 2025 and IEEE 2023; presented at both
  • ▹Built React dashboard with Grad-CAM visualizations replacing static PDF reports (adoption 15% → 85%). Prototyped CLIP-based multi-modal retrieval between lab images and research reports
  • ▹Automated model retraining via MLflow + GitHub Actions CI/CD, cutting deployment from 4 hours to 15 minutes
PythonYOLOv8ViTCLIPMLflowGrad-CAM
Full-timeJun 2021 - Dec 2022

Software Data Engineer

AT&T (via Accenture)•Bangalore, India
  • ▹Engineered BERT + XGBoost intent classifier (88% F1) predicting technician dispatch necessity. Eliminated 12K unnecessary dispatches/year, saving $2M annually
  • ▹Built Elasticsearch + Word2Vec anomaly detection for network telemetry, cutting diagnosis time by 40% and Tier-2 escalations by 25%
  • ▹Optimized PySpark / Delta Lake pipelines processing 1M+ logs/day (30% latency reduction); designed Azure Synapse warehouse with dbt
  • ▹Built NLP ticket-categorization pipeline with fine-tuned BERT, achieving 91% accuracy, 500K+ monthly interactions
PythonPySparkBERTAzure SynapseDelta LakeElasticsearch

Education

Master of Science in Computer & Information Science

University of Florida

Gainesville, FL2023 - 2024

Focus: Machine Learning, Computer Vision, Data Engineering

Bachelor of Technology in Computer Science

GPA: 3.9/4.0

GITAM University

Visakhapatnam, India2017 - 2021

Focus: Software Engineering, Data Science

Get in touch

Got an interesting project?
Let's talk!

Reach out to discuss healthcare AI, model evaluation, research, or a project you are working on.

Drop me an email