Solutions architect
The data model, the integrations, and the build order are decided before a line of code, so the scope you see is the scope you get.
A marketplace is two products in one: a place for sellers to list and a place for buyers to find and pay. The trap is trying to build every feature both sides could ever want. Lab Twelve builds marketplace MVPs as a locked scope: seller and buyer accounts, listings with search, and Stripe payments through the platform, with the one transaction flow that matters built first. Most first versions land on MVP Sprint because they need accounts on both sides, Postgres, and payments in one build. You see the fixed quote before checkout, you own the source code, and the marketplace ships to production, not a pitch deck.
One fixed price buys a whole product team in one: architect, designer, and AI-native engineer.
The data model, the integrations, and the build order are decided before a line of code, so the scope you see is the scope you get.
Interface, flow, and brand are designed for this build, not dropped onto a template. The finished app looks like it was meant to ship.
Senior execution at AI speed, in production with the source code in your hands. One builder with the range of a whole product team.
| Buyer and seller accounts | Included |
|---|---|
| Listings with search | Included |
| Stripe platform payments | Included |
| Core transaction flow | Included |
| Admin moderation view | Included |
Buyer and seller accounts: Two-sided auth as scoped
Listings with search: Sellers post, buyers find
Stripe platform payments: Wired and test-mode proven
Core transaction flow: The one buy path that matters first
Admin moderation view: Watch listings and accounts
| Connect payouts and splits | Not in base scope |
|---|---|
| Ratings, reviews, and messaging | Not in base scope |
| Native mobile apps | Not in base scope |
Connect payouts and splits: Scoped explicitly when you need seller payouts
Ratings, reviews, and messaging: Added once the core transaction works
Native mobile apps: Responsive web for the first version
A representative ScopeSpec ticket. Yours is assembled live from the scope chat, priced by the engine, and locked before you pay.
Scope lock + quote
The one transaction flow and the OUT list signed.
Accounts + listings
Buyer and seller accounts, listing create and search.
Transaction + payments
The core buy flow, Stripe through the platform.
Admin + ship
Moderation view, production deploy, runbook.
The first version takes payment through the platform. Stripe Connect payouts and revenue splits are scoped explicitly as an add-on when seller payouts are part of v1.
No. We build the one transaction flow that proves the marketplace works first. Reviews, messaging, and extras are queued once buyers and sellers are actually transacting.
Most marketplace MVPs land on MVP Sprint because they need accounts on both sides, Postgres, and payments in one build. The scope chat confirms the tier before checkout.
No agency to manage, no roster to assemble. The whole team, one number, source code in your hands.