Software Engineer × AI Builder

Seven years of enterprise .NET, now pointed at AI

I build high-volume production systems in C#, React, and SQL Server. Lately, I've been wiring those same skills into LLMs, RAG pipelines, and multi-agent workflows, all running on local GPU hardware.

Project vondraysanford.com
Engineer V. Sanford
Rev 2026.07
Scale Production
Status Operational
Approved for Production

Engineer first.
AI-obsessed second.

For the past 7+ years, I've been building the kind of software that can't go down: C# APIs, SQL Server architectures, React frontends, all running at scale for companies that process serious volume. One system I optimized handled $1.5 Trillion in historical insurance data. Another tool I built cut a team's monthly support tickets by 90%.

I've worked across healthcare platforms for seniors, a workforce tracking system serving 11,000 daily users at the world's largest BMW plant, and AI-driven injury evaluation services used by 18 of the top 20 US insurance carriers.

Now I'm taking all of that production discipline and applying it to AI. I'm building RAG apps, experimenting with multi-agent systems, fine-tuning open models on my own NVIDIA DGX Spark, and stacking certifications that actually reflect hands-on skill.

7+
Years in Production Software
$1.5T
Insurance Data Processed
90%
Support Tickets Reduced
11K
Daily Users Supported

What I build with

Production .NET and data engineering at the core, with an expanding AI and ML toolkit on top.

Backend & Data

C# / .NET Core SQL Server T-SQL ASP.NET MVC Entity Framework Dapper LINQ REST APIs

Frontend & UI

React.js JavaScript React Native HTML / CSS jQuery Responsive Design

Cloud & DevOps

Azure Cloud Docker GitHub Actions Cloudflare IIS Git PowerShell

Databases

SQL Server Query Optimization MySQL PostgreSQL Data Modeling SSIS / SSRS

Tools & Infrastructure

NVIDIA DGX Spark Python Visual Studio Postman SoapUI JAMS WINSCP

Where I've shipped

Insurance, healthcare, automotive, real estate, energy. Different industries, same bar: the system has to work at scale and it can't break.

Software Engineer II · CCC

Apr 2022 — Present
  • Built and launched a cloud-based injury evaluation service that uses AI and biomechanical analysis to review bills, assess settlements, and speed up claims processing for major carriers.
  • Optimized high-volume C# .NET data applications backed by advanced SQL Server logic, processing and validating over $1.5 Trillion in historical insurance data with help from GitHub Copilot.
  • Kept 24-hour inbound/outbound data and web services running for 18 of the top 20 US insurance companies, supporting both internal tools and customer-facing apps in an Agile environment.

Software Engineer · NavCare

Dec 2021 — May 2022
  • Designed and built enhancements for NavCare Connect, an enterprise web portal delivering Medicare-certified home health and senior care services.
  • Wore both the product owner and developer hats to design and ship a C# .NET bulk data update tool that cut the team's monthly support ticket volume by 90%.

Junior Software Engineer · Powerserve

May 2019 — Jan 2022
  • Shipped full-stack features across multiple enterprise web and mobile apps in ASP.NET MVC and .NET Core for clients including MAU Workforce Solutions, BMW, and William Raveis Real Estate.
  • Built critical features for a C# .NET application that tracked 11,000 daily users at the largest BMW Group plant in the world. Zero room for downtime.
  • Wrote a custom C# .NET and T-SQL pipeline to automate high-volume marketing data imports, giving BMW's marketing team the ability to generate filtered, targeted reports on demand.

Process Controls Student Summer Intern · Savannah River Remediation (DOE)

Summer 2016
  • Built a specialized database for the Process Controls and Engineering group's warehouse, tracking 1,000+ accountable equipment items and system components valued at over $34K.
  • Implemented a 5S Lean warehousing system end-to-end, from physical reorganization through logistics, and presented the results and impacts to SRR's management team.
  • One of 42 interns selected at the U.S. Department of Energy's liquid waste contractor for the Savannah River Site. Featured on energy.gov ↗

Certs that mean something

Not collecting badges. Picking certifications that prove I can build, not just define terms.

Microsoft Azure
AZ
900

Azure Fundamentals

Microsoft Certified — cloud concepts, Azure services, security, privacy, compliance, and pricing

✓ Earned
AI
900

Azure AI Fundamentals

Microsoft Certified — AI concepts, Azure ML, computer vision, and NLP services

✓ Earned
AI
102

Azure AI Engineer Associate

Building and deploying Azure Cognitive Services, AI solutions, and knowledge mining pipelines

✓ Earned
AI
300

Machine Learning Operations Engineer Associate

Training, evaluating, and deploying ML and GenAI models with Azure Machine Learning and Microsoft Foundry

Planned
GitHub
GH
900

GitHub Foundations

Certified — Git fundamentals, GitHub collaboration, repositories, workflows, and project management

✓ Earned
GH
300

GitHub Copilot

Certified — AI-assisted development, prompt crafting, Copilot configuration, and responsible AI usage

✓ Earned
Anthropic
MCP

Introduction to Model Context Protocol

Anthropic — building MCP servers that give LLM-powered apps structured access to tools and data

✓ Earned
CC

Claude Code in Action

Anthropic — agentic coding workflows, terminal-based AI development, and real-world Claude Code usage

✓ Earned
AS

Introduction to Agent Skills

Anthropic — designing and implementing reusable agent skill modules for AI-powered workflows

✓ Earned
SA

Introduction to Subagents

Anthropic — orchestrating multi-agent systems with subagent delegation and task decomposition

✓ Earned
Up Next
AWS
ML

AWS Machine Learning Specialty

Cross-cloud ML chops: data engineering, modeling, and deployment on AWS

Planned

Built to learn. Shipped to prove it.

Built around real problems. No toy demos, no tutorial clones. More shipping soon.

DocQuery

Ask plain-English questions against your documents and get cited answers back. A C#/.NET RAG pipeline with swappable providers: the same code runs fully local (Ollama + ChromaDB) or on Azure (OpenAI + AI Search) by flipping one config value. The live demo answers questions about me.

C# React Azure OpenAI ChromaDB Ollama

AgentReview

Multi-agent code review for pull requests: an orchestrator fans a diff out to specialized quality, security, and docs agents, then synthesizes their findings into one ranked review. Agents reach real tools (Roslyn, Semgrep, the GitHub API) through MCP. The public, from-scratch version of PR automation I built at work.

C#/.NET 10 MCP Roslyn Semgrep OpenTelemetry

Twitter Sentiment Bot

An end-to-end NLP pipeline that scores tweet sentiment and flags bot accounts with a 13-feature XGBoost classifier, serving live predictions through a Discord bot. Even back then, trained models were RSA-signed and verified at load time so the inference layer never runs a tampered pickle.

Python XGBoost NLTK Twitter API Discord.py
Open Source Contributions

MonoGame — cross-platform C#/.NET game framework · 14K+ stars

Authored XML API documentation adapting archived XNA reference material, adding platform-specific remarks for DirectX, DesktopGL, iOS, and Android runtime behavior.

GitHub ↗

KodeKloud AI-102 — official Azure AI Engineer course repo

Found a hardcoded Azure Cognitive Services endpoint and live API key exposed in a public course sample and submitted the security fix replacing the credentials with placeholders.

PR ↗

Local AI infrastructure

Production-grade AI workloads on personal hardware. No cloud bills, no rate limits, no waiting.

System Characteristics — DGX Spark Snapshot · SparkBench
Device NVIDIA DGX Spark
Memory 128 GB unified
Stack Ollama + vLLM
Models llama3 · mistral · phi-3
Inference 127 tok/s
Uptime 99.7%
Status online
# snapshot from the latest SparkBench run

Why local?

Running models on my own hardware means I can experiment without watching API costs climb, keep data completely private, and iterate on model behavior without hitting rate limits or usage caps. When you own the compute, you move faster.

The DGX Spark's unified memory lets me load models that would normally require multiple consumer GPUs. That means real fine-tuning and proper benchmarking, not just running demos.

  • Local LLM inference and benchmarking
  • Fine-tuning open models on domain data
  • Multi-agent workflow development
  • RAG pipeline prototyping
  • Model quantization experiments

Vondray Sanford

Let's build something

Open to full-time roles, contract work, and collaborations where AI meets real engineering problems.