Gray Fox Digital
Boris Reinosa
I help early-stage startups move stalled product work forward through short, focused engineering sprints. Instead of a long hiring process, I deliver a concrete backend or full-stack outcome in a 20-hour sprint — API, database, and React UI where needed. To reduce risk, the first half of the sprint acts as a pilot: if you don’t see real progress, you don’t pay. Most teams use this to ship features, stabilize services, or get demo-ready fast.
What I Can Ship in 20 Hours
In a focused 20-hour sprint, I typically ship a demo-ready or production-ready slice of your product, such as a complete backend API with a wired React flow, a stabilized FastAPI or Java service with clean data models and migrations, a critical bug or performance issue fully resolved, or a stalled feature pushed across the finish line. The goal isn’t refactoring for weeks — it’s visible progress you can show, deploy, or build on immediately.
50% Off First Sprint
A 20-Hour Engineering Sprint Includes
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Fixed technical scope defined up front
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Backend, frontend, or full-stack delivery
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Production-quality code (not prototypes)
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Direct collaboration with a senior engineer
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Risk-free pilot: refund up to 80% if expectations aren’t met
