Available now · open to W-2, contract, or contract-to-hire
Kevin Champlin — Senior Full-Stack Engineer
I turn legacy systems and ambitious roadmaps into software that ships.
20+ years architecting and running production platforms — for Fortune 100/500 names and a self-funded portfolio of 14 live products. WordPress & PHP to the core; Laravel, TypeScript, Next.js, and applied AI across the stack.
Trusted with production at
Levi Strauss & Co.
Mark Anthony Group
Wells Fargo
Global Medical Response
20+
years shipping
production software
production software
F100/500
Levi Strauss · Mark
Anthony · Wells Fargo
Anthony · Wells Fargo
14
live products
built & run solo
built & run solo
50+
sites & systems
delivered end-to-end
delivered end-to-end
01 — Selected engagements
The names are the receipt.
Four deep dives into what I actually shipped — the problem, the approach, and the outcome. Scope detail under NDA where it has to be.
Levi Strauss & Co.
Modernizing a heritage brand’s editorial platform
Senior full-stack WordPress engineer on template modernization for one of the world’s most recognized apparel brands — legacy-PHP cleanup, ACF-driven editorial agility, and an answer-engine discoverability layer.
Read the case study →White Claw · Mike’s Hard
Engineering for North America’s largest beverage portfolio
Built and maintained consumer brand systems across White Claw, Mike’s Hard, and MAS+ — high-traffic marketing platforms where reliability and brand fidelity are non-negotiable.
Read the case study →Wells Fargo
PCI-audited transaction systems at bank scale
.NET and SQL Server engineering on PCI-audited transaction systems — SSIS data pipelines, query tuning, and SAN storage optimization where downtime and audit failures are not options.
Read the case study →Self-learning AI systems, live in production
A portfolio of production AI: Diamond AI auto-grades and retunes its models nightly, Vantage AI runs an adaptive three-model ensemble, and AI vs AI orchestrates OpenAI, Anthropic, and Gemini in real time. Patterns most teams will need before they know it.
Read the case study →02 — The product shelf
Things I’ve built and run.
A self-funded portfolio of live software — AI systems, SaaS products, and open source. Every one is deployed, monitored, and mine end-to-end.
Vantage AI
Self-tuning equity market analysis. Three-model ensemble — momentum, mean-reversion, and sentiment — with adaptive weights that shift as accuracy data accumulates. Claude commentary on every call.
Laravel · Claude API · MySQL · Adaptive ensemble
AI vs AI
Live debate platform. Two LLMs argue an audience-supplied topic in real time, streamed token-by-token. Same prompt, different models — watch the reasoning diverge.
Laravel · SQLite · OpenAI + Anthropic + Gemini
BridgeCare OS
Enterprise-grade home care operating system. Unites agencies, field staff, and patient families on one platform — scheduling, EVV, compliance, care documentation, billing, and family transparency.
Laravel · PHP 8.3 · MySQL · PWA (iOS/Android/Web)
PaperCut
PDF-to-fillable-form SaaS. Drop in a static PDF, get a structured online form with field types auto-detected and a webhook-ready submission pipeline.
Laravel 12 · PHP 8.4 · MySQL
SEO Tool
Self-hosted SERP rank tracker. Daily ranking checks, competitor diffs, no per-keyword pricing. Used internally to track 100+ keywords across the Champlin Enterprises portfolio.
Laravel 12 · PHP 8.4 · MySQL · Daily cron
ZenPM
Project management for makers. No notifications, no Kanban theater — just the next thing to ship and a clear week ahead.
TypeScript · Next.js · Calm by design
Bloom
Cycle and fertility tracker. Web app plus native SwiftUI iOS client. Honest UX without the dark patterns of mass-market trackers.
Laravel 12 · Swift / SwiftUI · MySQL
CashFlow
Personal finance app with Penny, an AI advisor that actually reads your transaction data and answers questions about where your money is going.
Laravel 12 · PHP 8.4 · Claude API
LoadLens
Adaptive load forecasting. Utility-scale energy prediction tooling with rolling model retraining and per-meter calibration.
Laravel 12 · PHP 8.4 · Python forecasting
Champlin Enterprises
Marketing site for Champlin Enterprises consulting — headless WordPress + Next.js with ISR caching and JSON-LD entity graphs. The same reference architecture we ship for enterprise clients.
Next.js 14 · Headless WordPress · WPGraphQL · Vercel
StillWaters
AI prayer generator and daily devotional companion. Personalized prayers in your preferred tone and Bible translation, prayer wall, guided prayer, and scripture explorer.
Laravel 12 · PHP 8.4 · Claude API
Cloud of Witnesses
Chat with anyone in scripture — Jesus, Paul, Mary Magdalene, Cain, Judith, Enoch — in their own voices, from their own eras. Cross-canon. Built for seekers, Bible nerds, and pastors.
Laravel 13 · PHP 8.4 · MySQL · Claude API
WP 7 Readiness Check
A free WordPress plugin that runs 30+ pre-flight (or post-flight) checks for the WordPress 7.0 upgrade. Premium visual dashboard with animated SVG readiness score, color-coded findings across 9 categories, and 4 one-click autofixes with an automatic plugin-directory snapshot safety net.
PHP 7.4+ · WordPress 6.0+ · vanilla JS · custom SVG donut
+ 17 internal tools & micro-apps shipped across 815 Media and Ironcrest Software.
03 — Client work
Sites delivered for real businesses.
Local shops to multi-location operators — 21 production websites and web apps, each one live.
Full Circle Industrial
fullcircleindustrial.com ↗
Ficek Electric
ficekelectric.com ↗
Equip Solutions
eccprinceton.org ↗
Evangelical Covenant Church
eccprinceton.org ↗
Cherri Amour Candles
cherriamour.com ↗
Blue Ember
blueember.io ↗
A&M Products Company
aandmproducts.com ↗
9th St Pub
9thstpub.com ↗
815 Media, LLC
815.media ↗
The Tee Box
theteeboxsv.com ↗
The Artful Hook
theartfulhook.net ↗
Success Realty
successrealtyonline.com ↗
ABDW Logistics
sheffieldlocker.com ↗
Sheffieldlocker.com
sheffieldlocker.com ↗
Revival in the Land M.B. Church
revivalinthelandmbc.org ↗
Rao Enterprises LLC
raoenterprisesllc.com ↗
Nice Hat CRM
nicehatcrm.com ↗
Mendota Fire Department
mendotafire.com ↗
New Life Community Church
newlifeinjesus.com ↗
Mendota Mutual
mendotamutual.com ↗
Ironcrest Software
ironcrestsoftware.com ↗
04 — Capabilities
Stack breadth across four eras.
From Classic ASP and VB to PHP 8, TypeScript, and agentic AI — depth where it counts, range when it’s needed.
Languages & Runtimes
- PHP 8 · TypeScript / JavaScript
- C# / .NET · Python
- Swift / SwiftUI · Kotlin
- SQL · Classic ASP · VB (legacy)
Frameworks & Platforms
- WordPress & WooCommerce (since v3)
- Laravel · Next.js · React / Vue
- Headless WP · WPGraphQL
- PWA · native iOS / Android
Applied AI
- Agentic workflows & orchestration
- RAG & retrieval pipelines
- Multi-provider (Claude, OpenAI, Gemini)
- Self-tuning & evaluation harnesses
Data & Infrastructure
- MySQL · SQL Server · SQLite · Redis
- SSIS · data warehousing · reporting
- CI/CD · observability · on-call
- Vercel · Plesk · Docker
Domains
- Regulated finance (PCI)
- Healthcare (EVV, compliance)
- Consumer brands & high-traffic
- Higher education & public sector
How I work
- Architecture diagrams & incident playbooks
- Measurable KPIs, human-in-the-loop AI
- Ship-first, demo-never
- Same engineer, first call to last commit
05 — Track record
Two decades, deployed where it counts.
2024 — Present
Founder & Principal Engineer
Champlin Enterprises, LLC · plus contract roles (Levi Strauss via Xebia, Mark Anthony Group)
Independent senior engineering and applied-AI work: enterprise WordPress, SaaS launches, platform rebuilds, and a self-funded portfolio of 14 live products.
Earlier career
Senior / Lead Software Engineer
Wells Fargo
.NET / C# services and SQL Server at scale — PCI-audited transaction systems, SSIS pipelines, and SAN storage optimization.
2015
Programmer · DBA · Sysadmin
Illinois Valley Community College
Full-stack ERP customizations, backup & recovery, campus networking, and faculty tooling across the institution.
2003
Programming Instructor
LaSalle-Peru High School
Taught the next generation of engineers and built registrar utilities in VB6 — where the shipping habit started.
“
AI doesn’t replace senior engineers — it amplifies them. I design systems where people set the strategy and AI handles the heavy lifting.— Kevin Champlin
Hiring a senior engineer who actually ships?
Open to W-2, contract, or contract-to-hire — remote or Chicago-metro. Tell me what you’re building and what’s in the way.