What we have actually built.
Quantitative trading engines, back office software for trades, a compliance platform, a forensics stack, sites, apps and the tooling underneath them. Each one says what it was for, what was built, what it achieves and what the hard part was.
Before the list
Three things worth knowing about how this page is written.
Built, not described
Every entry is running software with a test count attached, not a proposal or a concept. Most were built as ventures, where a founder funds the build and keeps equity, so the work had to survive someone else's expectations rather than only our own.
The same discipline, whatever the domain
Trading engines, bookkeeping software and pool inspections look unrelated until you notice the pattern: measure it, refuse to launch on a guess, and make the failure path the part you engineer hardest.
Status is stated bluntly
Several of these say paper-locked, gated or pre-launch. That is what they are. A portfolio where everything is 'in production' is a portfolio that is lying about at least one thing.
Quantitative finance
7 projects
Trading research terminal
A research terminal that tries to disprove its own findings before it believes them.
Multi-venue execution and routing
One broker over 105 exchanges, with the live switch deliberately hard to flip.
Options desk
An options terminal with greeks, a tape backtester and cross-venue pricing across five venues.
On-chain vaults and an external track record
Native on-chain vaults with a faithful trade-mirroring bridge, plus a funded-track submission.
Copy-trading desk
Copy trading judged on tracking error and prop-firm rule headroom, not on advertised returns.
Prediction-market engine
A parity-arbitrage engine that reports an honest $1,000 to $1,005 rather than a fantasy.
Market-making run analysis
Automated analysis of market-making runs, so strategy decisions come from data rather than feel.
Business software
4 projects
Trade back office
Overdue invoices chase themselves, in the business owner's name, and payments reconcile on arrival.
Document chatbot
Turn a business's own documents into an embeddable chatbot that cites its sources.
Local-first bookkeeping
Bookkeeping assistance that runs on the user's own machine rather than in someone else's cloud.
Catalogue and quoting site
842 pages, a plain-English quoting engine, and a validator that fails the build on thin content.
Trades and services
2 projects
Marketing
2 projects
Professional
2 projects
Sports trading
1 project
Trading tools
1 project
Compliance technology
1 project
Security
1 project
Design
1 project
Data products
1 project
Want the same discipline on your problem?
The catalogue prices the patterns behind all of this. Describe your version and get it scoped without a call.