SaaS & product engineering
Software that's ready for paying customers.
From MVP to the features your customers are asking for: multi-tenant apps, billing, dashboards, APIs and integrations, built on a stack you can hire for.
What we build
Subscriptions and billing (Stripe)
Admin dashboards and internal tools
APIs and third-party integrations (CRMs, ERPs, webhooks)
Complex business logic (pricing engines, calculators, workflows)
Performance and database design on Postgres
A project we've shipped with a client
“BlitzHash has by far the best developers I've ever had the pleasure of working with. My favorite project that we worked on together was for a highly complex pricing tool, involving hundreds of products, equations, and variables.”
Stack
Next.jsReactTypeScriptNode.jsPostgresSupabaseStripeDockerVercelCloudflare
How a build is engaged
Fixed-scope build
A defined MVP or feature, a written quote, milestones.
Sprint blocks
Two-week blocks with a planned outcome, for evolving products.
Technical Partner
Ongoing ownership, monthly.
Every build is quoted after a call. You'll get a written scope and quote before any commitment.
Next step
Tell us what you built. We'll tell you what it takes to ship it.
Book a free 30-minute call, or send your app for a free written assessment. Either way, you'll have a clear scope and a written quote before you pay anything.
Custom quote after a free assessment · Work happens in your accounts · Written handover