Jordan Coin Jackson
Builder & writer. Detroit-made, Washington-DC-based.
I ship software people pay for, then write about what it taught me. By day I'm a senior engineer at a consumer-finance company, building AI systems that move real money and have to be right. Nights and weekends, I run a small portfolio of my own: a test-prep company, a book-club app, community tools, and a growing shelf of open source.
The through-line is the same everywhere: honest numbers, human voice, software that respects the person using it.
Things that earn
Real products with real customers. No waitlists pretending to be companies.
- Social Work Test Prep Academy earning ASWB exam prep built around an uncomfortable fact: pass rates are ~75% overall and ~45% for Black test-takers. 1,000+ questions reviewed by a practicing LCSW, AI exam simulations, $129 until you pass. Web, iOS, Android.
- Hacked Summaries earning Audio book summaries and recommendations, grown out of Black Men Book Club. The app I built to get more people who look like me thriving through reading. iOS, 4.7★.
- AFK Mod building The only Discord moderation bot a community should need — an AI steward that watches, routes, and escalates so humans don't burn out. $59/mo.
- AppReview Ready new A pre-submission audit for first-time App Store developers — score your listing against 60 real rejection rules, or paste Apple's rejection letter for a Resolution Center reply plan. Free check; $9 for the full report.
- OffSpec new Design QA for screens that don't have a URL. Drop in a Figma frame and a simulator screenshot; get every mismatch — spacing, color, type — scored and written up as an assignable Jira ticket. Free tier; $9 for 25.
- AASA.link new Uptime monitoring for iOS Universal Links. The worst outages are the ones nothing reports — a firewall or a stale CDN quietly sends every tap to Safari. Free instant check; $9/mo to be alerted before your users notice.
Given away
Open source, mostly tooling for the AI-agent era of programming.
- codemap ★ 658 A project brain for AI coding agents — structural ground truth so your agent stops guessing at your codebase. Go.
- openfoia oss Local-first FOIA automation for journalists and the professionally curious.
- ios-skills-collection oss 200+ curated skills that make coding agents genuinely good at iOS work.
- crap4swift oss Change-risk analysis for Swift — finds the code most likely to hurt you. Ships via Homebrew.
- …and the rest 50+ repos docmap, Cassette, sockd, whats-next-mcp, a Homebrew tap, and whatever this week produced.
Written down
The original blog (2016–2019): Detroit, dropping out, learning to build. Preserved here, re-set by hand.
Essays on books, fathers, Detroit, and becoming. The longest-running thing I make — thousands of readers.
For social workers chasing licensure — study craft and the equity gap in plain language.
"Claude has my brokerage account. It mostly says no." A weekly account of the trades an A.I. refused to make — by Coin & Claude.
The early essays (2016–2021): dropping out, getting up, learning to build.
Now
Senior iOS engineer at Koalafi, where I originated and solo-built a purchase-validation platform that lets a lender finance carts at any retailer with zero integration — and where I learned that putting an LLM on a money path is a discipline, not a demo.
Increasingly writing and speaking about AI in consumer finance for underserved markets — the intersection where I live: the systems, the fairness math, and the people the credit system was not built for. If that's your world too, say hello.