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darwinz/README.md

Hello World, I'm Brandon Johnson (darwinz) 👋

I run Fullspec Studio, a small software studio in Utah that builds across the whole spectrum: infrastructure, interface, and intelligence. Before the studio, I spent about 19 years building distributed systems, payments infrastructure, and developer platforms at companies like Moov Financial and Cricut.

The full spectrum: Systems Design, Infra, DevOps, Data, AI, Backend, Frontend

The studio runs two lines of work under one roof:

🛠️ Products
AI-native software we build and ship ourselves

  • ImgCrisp: honest WordPress image optimization
  • AnswerEng: what AI answer engines say about your brand
  • Crawlspace: self-hosted SEO platform with an MCP server
  • Cue: voice-first prompt engineering for Mac
  • JobMap: a job search, run like a pipeline
  • HIPAA-aware Intake Assistant (site coming soon)

🤝 Consulting
Senior engineering for startups and small teams

Discuss a project fullspecstudio.com

I also contribute to open source and join hackathons, and I maintain (and am the top contributor to) TheAlgorithms/PHP.


By the numbers

GitHub Stats     GitHub Streak


Open source I've helped build

TheAlgorithms/PHP     moov-io/ach

moovfinancial/moov-go     Fullspec-Studio/aeo-engine


darwinz snake gif


A little more about me: click to expand

Some fun facts

  • Fullspec Studio isn't my first company. I've founded or co-founded a few others, including a SaaS platform for real estate developers, an app that let athletes compare their performance with pro athletes, and a dev consulting agency
  • The "full spectrum" in Fullspec is literal: over about 19 years I've been the specialist on each layer of the stack in turn (infrastructure, data, backend, frontend), going deep on one at a time
  • My favorite programming language is Go, followed by Python, TypeScript (and Node.js), Lua, Swift, Dart, Ruby, Elixir, Rust, Java, and then PHP
  • I've worked on some fairly large-scale systems, including data pipelines ingesting TBs of data every day (with an AWS bill averaging well over $1 million per month), an e-commerce site whose database averaged 12,000 queries per second under normal load, and a payments platform handling more than 5,000 requests per second

Languages I've written, weighted by commits and lines across every repo


Find me around the web

Personal site: johnsonbrandon.com     Fullspec Studio: fullspecstudio.com     LinkedIn: in/brandonbjohnson

Pinned Loading

  1. moov-io/ach moov-io/ach Public

    ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is available.

    Go 566 207

  2. TheAlgorithms/PHP TheAlgorithms/PHP Public

    All Algorithms implemented in PHP

    PHP 2.7k 586

  3. Fullspec-Studio/aeo-engine Fullspec-Studio/aeo-engine Public

    AEO / answer-engine visibility monitoring — Bedrock multi-model sampling, LLM-as-judge with eval harness, guardrailed fix drafting. AWS serverless (Step Functions, Aurora, CDK).

    Python 1

  4. oo-file-system oo-file-system Public

    An object-oriented file-system developed in Python

    Python 7

  5. forge forge Public

    Rust CLI installed as a binary executable for local development and dev ops environments

    Rust 5 1

  6. workmail-mcp-server workmail-mcp-server Public

    Amazon Workmail MCP Server

    TypeScript