# Braden Evans > Braden Evans builds backends, data systems, Mac and phone apps, and a few games. I also run Kumiko Solutions (https://kumikosolutions.com). This site is static HTML from Astro, served by one Cloudflare Worker with a D1 database behind its small live API. ## Work Software Engineer based in St. Louis, MO. Remote, in St. Louis, or open to relocating. The full résumé as JSON Resume: https://bradenevans.dev/resume.json Software engineer since 2022 and owner of an independent software practice since 2023. Has shipped work in Java, Python, TypeScript, Go, Swift and C++, including apps on three app stores, ESP32 firmware, a Rive animation with a WGSL shader compiled for four GPU targets, an OCaml constraint solver and a self-hosted Proxmox home lab. ### Experience - Lead Software Engineer & Owner at Kumiko Solutions LLC (formerly VikScripts), Wentzville, MO / Remote, Dec 2023 to present - Patient Care Technician at BJC HealthCare, Barnes-Jewish Hospital, St. Louis, MO, Jun 2026 to present - Founding Engineer (Contract, Part-time) at Confidential Beauty-Tech Startup, O'Fallon, MO / Hybrid, Apr 2025 to Jan 2026 - Digital Lab Technician at DynaFlex, O'Fallon, MO, Apr 2023 to Dec 2024 - Freelance Web Developer at Self-employed, Remote, Oct 2022 to Apr 2023 ### Selected projects - Bank Job (Java 25, Spring Boot, PostgreSQL, Kafka, Python, OpenTelemetry, React, TypeScript, k3s): A distributed backend system that runs a live browser game in which players try to con an LLM bank teller. https://bankjob.bradenevans.dev - Omen (Python, PostgreSQL, Docker Compose, SvelteKit): An always-on research system for Kalshi's weather markets, used daily. - Moonstage (TypeScript, MoonBit, WebAssembly, MCP): An open-source game runtime for agentic workflows, published on npm. https://github.com/bradene0/moonstage - Open source: Native Apple Silicon port of Floating Sandbox (C++, 1,014 tests passing) and fixes that shipped in caveman. ### Skills - Languages: Java, TypeScript, Python, Go, SQL, Swift, C++, JavaScript, MoonBit - Backend and data: Spring Boot, FastAPI, PostgreSQL, Apache Kafka, SQLite, Flyway, REST APIs - Frontend and mobile: React, React Native, Expo, Next.js, SvelteKit, SwiftUI, Vite, WebAssembly - Infrastructure: Docker, Kubernetes (k3s), Terraform, GitHub Actions, OpenTelemetry, Cloudflare, Amazon Web Services (AWS) - Testing: JUnit 5, Testcontainers, pytest, Playwright, k6, property-based testing (jqwik, Hypothesis) - AI: LLM agents, agentic workflows, MCP servers and clients, eval harnesses, Anthropic API ### Education - B.S. in Data Analytics, Western Governors University, expected Jun 2027 - Certificate in Software Engineering, LaunchCode, 2024 ## Pages - [Home](https://bradenevans.dev/): intro, live system status, featured projects, open source and contact - [Projects](https://bradenevans.dev/projects/): everything shipped and on the way, most impressive first - [Stack](https://bradenevans.dev/stack/): each technology and the projects that use it - [Open Source](https://bradenevans.dev/open-source/): pull requests to other people's projects - [Engine Bay](https://bradenevans.dev/engine-bay/): a tour of this site's own code, with notes - [How this page was served](https://bradenevans.dev/served/): a live trace of a request, browser to Worker to database ## Projects - [Bank Job](https://bradenevans.dev/projects/bank-job/): Social-engineer an AI bank teller into wiring money, through five levels of real security controls. - [Moonstage](https://bradenevans.dev/projects/moonstage/): A browser game runtime built for AI coding agents. Games are JSON and MoonBit, tested without a browser, shared as one HTML file. - [Rebar](https://bradenevans.dev/projects/rebar/): Photo-point monitoring for restoration groups: find each spot, line up the same shot, and build before-and-after reports. - [Omen](https://bradenevans.dev/projects/omen/): An always-on data system capturing prediction-market order books and weather data every minute into an append-only ledger. - [Floating Sandbox: Apple Silicon port](https://bradenevans.dev/projects/floating-sandbox-apple-silicon/): A pull request adding native Apple Silicon macOS support to Floating Sandbox, the open-source ship physics simulator. - [Rebacked](https://bradenevans.dev/projects/rebacked/): A Mac app for fixing ebook libraries: covers, metadata, series and batch edits, all local with no account. - [DevOps microservice](https://bradenevans.dev/projects/devops-microservice/): A Flask service built, tested, scanned and deployed to AWS ECS Fargate by a GitHub Actions pipeline, with Terraform for all infrastructure. - [Hooks 11 solver](https://bradenevans.dev/projects/hooks-solver/): An OCaml backtracking solver for Jane Street's Hooks 11 puzzle (September 2025): hooks, pentominoes and sum rules. - [App Archaeology](https://bradenevans.dev/projects/app-archaeology/): A read-only Mac utility that shows where installed apps keep their data, including leftovers from apps you removed. - [Homelab](https://bradenevans.dev/projects/homelab/): A single-node Proxmox server on a repurposed ThinkPad, with no public exposure, tested backups and unattended power recovery. - [Stat arb engine](https://bradenevans.dev/projects/stat-arb-engine/): A modular Python backtester for pairs trading with rolling hedge ratios and Z-score signals. - [Hi-Lo Trainer](https://bradenevans.dev/projects/hi-lo-trainer/): A blackjack card-counting trainer in one HTML file: seven drills, a table simulator and a strategy engine. - [Kitchen Sink](https://bradenevans.dev/projects/kitchen-sink/): A pressure-washing browser game in one HTML file, with every graphic drawn in code and every sound synthesized. - [Flight Recorder](https://bradenevans.dev/projects/flight-recorder/): A mobile-first disassembly game in one HTML file: take apart a flight recorder, part by part, by touch. - [Haunted CLI](https://bradenevans.dev/projects/haunted-cli/): A fake terminal where a coding agent builds a little Rive scene, until something else starts typing. ## Open source - [JuliusBrussee/caveman#1119: fix(opencode): support ChatGPT OAuth through subscription proxy](https://github.com/JuliusBrussee/caveman/pull/1119): merged - [GabrieleGiuseppini/Floating-Sandbox#122: Add native Apple Silicon MacOS support](https://github.com/GabrieleGiuseppini/Floating-Sandbox/pull/122): open - [asands1769/Adam-Blaze-Crafters#36: Added forum link to open in new tab to navbar](https://github.com/asands1769/Adam-Blaze-Crafters/pull/36): merged ## Contact - Email: bradene0@outlook.com - Kumiko Solutions: bradene@kumikosolutions.com - GitHub: https://github.com/bradene0 - LinkedIn: https://www.linkedin.com/in/bradene00 ## Optional - [Full text](https://bradenevans.dev/llms-full.txt): every project in detail