IRVING

Full-Stack Software Engineer

Now: Senior RPA Developer
Company: Baker Tilly · U.S. Navy
Clearance: US Secret
Status: Available

Selected Work

[ 01 — 03 ]

garmin-mcp

An MCP server on PyPI that hands your Garmin Connect health data to Claude as typed tools — with a full OAuth 2.1 layer for custom connectors.

PythonFastMCPModel Context ProtocolOAuth 2.1 (PKCE)Pydantic +3

The Numbers

PyPI Distribution

OAuth 2.1 Auth

Cloud Run Deploy

What I Built

Open-source Model Context Protocol (MCP) server, published on PyPI, that exposes Garmin Connect health & fitness data to Claude as typed tools — sleep, HRV, training load, body battery, and more — read-only by default, with an opt-in tool to build strength workouts. Self-hostable HTTP mode implements a full OAuth 2.1 layer with PKCE and Dynamic Client Registration so Claude.ai custom connectors can authenticate; Pydantic response models throughout, deployable to Google Cloud Run via Docker.

Key Decisions

Published to PyPI as an installable MCP server — typed tools for sleep, HRV, training load, body battery and more Garmin Connect metrics
Read-only by default; building workouts is an explicit opt-in tool — safe to connect without write access to your account
Self-hostable HTTP mode implements OAuth 2.1 with PKCE + Dynamic Client Registration so Claude.ai custom connectors authenticate cleanly
Pydantic response models throughout, Dockerized for one-command deploy to Google Cloud Run

motor-pool

A grounded AI assistant over public HMMWV Army manuals — it cites the manual, returns structured procedures, and refuses anything out of scope.

PythonPydanticbm25sDense embeddingsReciprocal Rank Fusion +3

The Numbers

52→90% Schema-Valid

14→90% Refusal F1

136 Eval Items

What I Built

Grounded AI diagnostic assistant over public-domain U.S. Army Technical Manuals for the HMMWV (materiel/maintenance domain). Hybrid retrieval — BM25 lexical search fused with dense embeddings via reciprocal rank fusion — feeds a QLoRA-fine-tuned model that cites the exact manual sections it used, returns structured maintenance procedures, and refuses out-of-scope questions instead of hallucinating. Shipped with an honest evaluation harness: on a frozen 136-item eval set, schema-valid output rose from 52% to 90% and refusal F1 from 14% to 90% versus the base model.

Key Decisions

Hybrid retrieval — BM25 lexical + dense embeddings fused with reciprocal rank fusion (RRF) for robust recall over dense technical-manual language
Behavior-only QLoRA fine-tune (Unsloth + TRL) teaches citation, structured procedure output, and out-of-scope refusal — without memorizing the manuals
Frozen 136-item eval set as ground truth: schema-valid output 52%→90%, refusal F1 14%→90% vs. the base model — improvements are measured, not asserted
Pydantic-validated outputs — every answer is a typed, schema-checked procedure that cites its source sections, not free text

Where is my data?

181 datacenters. 43 cloud providers. Latency estimation. All on one map.

Next.js 16React 19TypeScriptMapbox GL JSZustand +2

The Numbers

181 Datacenters

43 Providers

33 Pricing Regions

What I Built

Interactive globe visualizing 181 cloud and colocation datacenters across AWS, Azure, GCP, Equinix, Digital Realty, Cloudflare, and 40+ other providers. Filter by provider type, estimate round-trip latency with a Haversine + fiber routing model, compare cloud pricing across 33 regions, and export filtered results as CSV or JSON.

Key Decisions

Zustand with 6 stores (datacenter, filter, map, comparison, latency, pricing) — no Redux boilerplate
Latency uses Haversine + 1.3x fiber overhead + hop decay + 15% congestion buffer — fully offline, no live ping
Uncontrolled Mapbox pattern — flyTo/setMaxBounds called imperatively via mapRef to avoid animation choppiness
Shareable URLs via custom useUrlSync hook with 500ms debounce — encodes filters, viewport, and selected datacenter into query params

Experience

[ 2020 — Present ]

ACTIVE

Aug 2025 – Present

Baker Tilly Senior Consultant · U.S. Navy / Navy Personnel Command

[ SECRET ]

Modernizing how the Navy processes 2 million fitness reports a year.

RPA developer on a three-person team automating fitness & performance evaluations for E1–E4 sailors — 2M+ reports a year — with UiPath Studio, Orchestrator & Document Understanding
Personally own three end-to-end production workflows (attended document scanning, summary-group dispatching, summary-group reporting) from design through deployment
Independently built the on-site UiPath Apps interface Navy personnel use to run the attended automations
Train custom ML models in UiPath AI Center and wrote 150+ OCR business rules for high-accuracy extraction and identity verification across diverse, legacy PDF formats
Partnered with a cross-functional team (PM, BA, Solution Architect) to ship an MVP projected to save the U.S. Navy $2M+ annually

COMPLETED

Jan 2024 – Aug 2025 · 1yr 8mo

ONeil Interactive Back-End Engineer

Backend infrastructure for high-traffic platforms serving the residential homebuilding industry.

Built and maintained scalable backend systems in Python/Django/DRF for homebuilder marketing platforms
Led development of Homefiniti CMS — clients' primary tool for managing property data at scale
Modernized legacy MLS data integrations, replacing brittle code with clean, maintainable patterns
Upgraded legacy Python/Django codebases to current versions, improving security and performance

COMPLETED

Jan 2022 – Jan 2024 · 2yrs

Lightmatter Software Engineer

Full-stack engineering in healthtech — HIPAA-compliant features shipped in a fast Agile environment.

Built a voice-to-text AI pipeline: OpenAI Whisper → fine-tuned BART classifier → GPT-3.5-Turbo structured output
Architected patient email automation using live EHR/EMR data for targeted, automated outreach
Led React Native and HTMX frontend work alongside Django/DRF/Ninja backend development
Delivered across GCP, Heroku, Docker, Postgres stack with full ownership end-to-end

COMPLETED

Aug 2020 – Jan 2022 · 1yr 7mo

C Spire Jr. Software Developer

Started here. Shipped a core internal platform and migrated Perl to Django before the end of my first year.

Built Django platform for phone call management — query, share, and modify telecom rate center inventory reports
Led end-to-end development of customer data usage tracking app for billing cycle support
Migrated legacy Perl tools to Django with redesigned frontends — cleaner code, better UX
Operated in full Agile lifecycle: standups, sprint planning, retros

Capabilities

[ 004 ]

RPA & Automation

Enterprise-grade automation at Navy scale.

UiPath Studio Orchestrator Document Understanding AI Center Attended & Unattended Bots OCR & ML model training Python automation Selenium Playwright asyncio

Backend Engineering

APIs that don't fall over.

Python C# Bash Django DRF Django Ninja FastAPI Celery REST WebSockets OAuth / JWT PostgreSQL PostGIS Supabase Redis SQLite Docker GCP Vercel Heroku Linux systemd

Frontend & Full-Stack

I build the whole thing.

React 19 Next.js TypeScript JavaScript React Native HTMX Tailwind CSS Mapbox GL Astro

AI & ML

LLM systems that stay grounded — with an honest eval to prove it.

Claude API Model Context Protocol Retrieval (BM25 + embeddings) RAG QLoRA fine-tuning Unsloth & TRL OpenAI Whisper BART GPT-3.5-Turbo Prompt engineering Pydantic

Currently at Baker Tilly, always shipping something on the side.

Education

[ 2019 — 2020 ]

Base Camp Coding Academy 2020

Software Development

Selective, tuition-free, year-long immersive software-development program (Water Valley, MS) for nominated Mississippi high-school graduates — full-stack training built on real-world projects.

Hernando High School 2019

Diploma