Grimalkin LLC

Senior engineering judgment, on demand.

A consulting practice for founders and teams who need a straight answer: Is this idea worth building? Is that bid fair? Where do AI agents actually help — and where will they bite you?

Geometric line-art cat, the Grimalkin mark

What we do

Four ways we help

Idea evaluation

A rigorous, honest read on whether a product idea is technically and commercially sound — before you spend the runway finding out.

Contractor-bid second opinions

Independent review of agency and contractor proposals: scope, timeline, price, and the risks buried in the fine print.

AI & agentic consulting

Where LLMs and agents create real leverage in your product and workflow — and an honest map of the failure modes.

AI-assisted prototyping

From zero to a working v0→v1 prototype, fast, using modern AI-assisted development to compress the build.

Why Grimalkin

Two decades of shipping, rescuing, and scaling.

Grimalkin is led by Ian Bone — a language-agnostic engineer who builds v0→v1 products, rescues broken systems, and grows teams. Staff engineer at NextEra's EverBright, repeat CTO and interim-CTO (Opolis, Veri Labs, Deciding Vote), early Amazon engineer who demoed a game-streaming prototype to Jeff Bezos, and holder of seven US patents in cloud computing.

That track record is the point: you get senior-level judgment without hiring a senior-level full-timer. When a brief calls for more hands, Grimalkin brings in trusted collaborators as contractors.

Get started

Have a decision to de-risk?

Tell us what you're weighing. First conversation is free, and you'll leave it with something useful whether or not we work together.