Hashorn

Service · Build

Faster product development, without losing the plot.

We pair senior engineers with AI workflows for code generation, review, and refactor. You get speed AND someone you can hold accountable.

What we deliver

Capabilities, not departments.

MVP development

From whiteboard to first paying customer in 4–8 weeks.

SaaS engineering

Multi-tenant, billable, observable from day one.

Web & mobile apps

Next.js, React Native, native when needed.

Legacy modernization

AI-assisted refactor with parallel test harness.

Internal tools & AI agents

LLM workflows, RAG, agent orchestration.

Architecture & DX

Type-safe, AI-friendly, easy to onboard.

How we deliver

From whiteboard to shipped product.

A four-step path. Same shape every project, different content every time.

product-brief.v1.md
Approved
Target user

B2B fintech startups · US/UK

Core value

Card issuing in 6 weeks, not 6 months

Success metric

First live transaction by demo day

Risk to manage

Stripe latency · PCI scope

Team & runway

3 engineers + QA · 6 weeks

How we engage

Pick how we work together.

Three engagement shapes. Same delivery rigour. You pick the cadence and commitment.

FAQ

Questions clients ask before we start.

Ready to ship faster, without losing the plot?

Tell us what you're building, we'll tell you how we'd ship it.

Book an intro call →