Martingale GmbH is a boutique AI engineering practice for regulated finance.
A few engagements at a time. Chosen for fit.
the gap
Most AI prototypes never survive contact with production. A demo only has to work once. A system in regulated finance has to work every day: reconcile, keep an audit trail, deploy safely, and fail predictably.
Closing that gap is the whole problem, and the only one we take.
the trading day
the substrate
Built to one standard. The substrate that lets a finance system be:
how we work
Two ways to engage. A fixed-price build, delivered in your stack. An independent review of a system you run, or another shop’s spec.
The build is yours to keep. Monitoring and evaluation after handoff, if you want it.
The review holds a system or a spec to the same standard: whether it will survive production.
Builds are few by design. Reviews are shorter and start sooner.
services
A third-party assessment of whether an AI system or spec will survive production.
The core build, made to run every day under real load, not to work once in a demo.
monitoring & evaluation
Standing evaluation and instrumentation to detect drift or degradation as a live system runs.
risk & governance
Audit trails, contained blast radius, predictable failure: the controls that make a system safe to run under regulation.
the practitioner
A builder and researcher.
Martingale is led by Gregory Wheeler. He co-founded a digital lending marketplace and built its credit-scoring pipeline end to end — independent assessment of loans for institutional investors to fund. He publishes on probability and decision theory, the mathematics that finance runs on.
contact
What you’re building, or what you’d have reviewed. The constraints it has to hold, and where it stands.
the build
describe the buildthe review
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