Payne Kerz, full-stack developer based in Kansas City
INDEX 01

I build things for the web and make them feel alive.

Kansas City, MO
Active Now
Now

Building my portfolio and exploring what's possible with modern web tech.

Work 5+

Web apps, tools, and systems. Built to solve real problems.

5 projects View all →
V2.0.4 // SYSTEM_READY
PHP TypeScript JavaScript C# React Angular NestJS .NET Node.js PostgreSQL Docker AWS REST APIs PHP TypeScript JavaScript C# React Angular NestJS .NET Node.js PostgreSQL Docker AWS REST APIs
INDEX 02

EST. 2022 TO PRESENT

Selected Work

A selection of projects that reflect how I think about problems and what I value in the craft.

Featured WorkAll Work →
INDEX 03

Four years building production software across enterprise apps, contract consulting, and sales engineering. Full-stack.

Career Path

Experience 2022–Present
2025–Present

Basys Processing

Software Sales Engineer

Technical bridge between engineering and sales, specializing in merchant integration of the iQ Pro+ payment gateway across major eCommerce platforms. Built custom plugins for WooCommerce, Shopify, and Magento with Apple Pay, recurring billing, customer vaulting, Level II/III rate qualification, and ACH payments.

PHP JavaScript React C# REST APIs WooCommerce Shopify Magento Apple Pay
2024–2025

Clearwater Consulting

Software Engineer · Contract

Delivered custom web solutions for three clients: eCommerce platform on WordPress/PHP with Epicor for Suburban Lawn and Garden, Ruby on Rails blockchain front-end for MemoryBank, and WooCommerce storefront for Fox Lumber Sales.

WordPress PHP Ruby on Rails WooCommerce Epicor
2022–2024

H&R Block

Software Engineer

Enterprise tax platform front and back end. Angular/TypeScript front-end, .NET REST APIs, Python microservices, CloudDB schema management, hackathons, ethical hacking red-teaming, and mentoring.

Angular TypeScript Python .NET SQL C# Azure DevOps
2022

Generation Esports

Full Stack Developer

Full-stack esports tournament platform. Consolation brackets, security refactor, automated match scheduling, CI/CD pipelines, Docker on AWS ECS, and Terraform IaC.

Angular GraphQL Nest.js Node.js MongoDB Docker AWS Terraform
What Others Say
"A developer that doesn't quit, that keeps learning, and keeps asking questions to improve, Payne is your guy." · Nate Pruessner · Senior Software Engineer Team Lead, Generation Esports "From his positive can do attitude to openness to feedback Payne would make an excellent asset to any team." · Holly Gray · Human Resources Manager, Generation Esports "A developer that doesn't quit, that keeps learning, and keeps asking questions to improve, Payne is your guy." · Nate Pruessner · Senior Software Engineer Team Lead, Generation Esports "From his positive can do attitude to openness to feedback Payne would make an excellent asset to any team." · Holly Gray · Human Resources Manager, Generation Esports
04 What I'm Building Now
Building
INDEX 04

Suffr

NestJS PostgreSQL Astro React Claude API
Development Progress 40%

An AI training coach for ultramarathon runners. It ingests GPX courses, WHOOP recovery data, and race history, then Claude generates a periodized plan and adapts each workout to how recovered you are.

Available for work Get in touch: Email
Suffr course page: a trail route color-coded by grade on a map, with course stats and an elevation profile
PREVIEW_V0.40

Started May 2026 · 13 commits

INDEX 05

I've never been able to leave a system alone until I understand how it works.

That instinct grew into a belief that software should work cleanly, explain itself, and last. I graduated from the University of Kansas with degrees in Computer Science and Communications. When I'm not building, I'm usually at the gym, on a trail, or learning something new. Based in Kansas City, open to wherever the work is interesting.

Portrait of Payne Kerz, software developer and University of Kansas graduate