A working web application your team can run on day one. Custom authentication tuned to your access model, role-based permissions wired into every endpoint, multi-tenant data isolation that actually holds under penetration testing, and an audit log of every state change so disputes become a query, not a guess. Built on Next.js, Postgres, and a typed API layer that catches contract drift at compile time.
Authentication system with roles and per-route permission gates
Multi-tenant Postgres schema with row-level isolation
Typed API layer (tRPC or typed REST) with shared client + server contracts
Operator dashboard for admin actions, support, and observability
Audit log table with append-only writes on every mutation
Background job runner for scheduled and queued tasks
Email + transactional notification pipeline
CI/CD pipeline with preview deployments per pull request
Documentation: data model, deployment, on-call runbook
Foundations
Every web applications engagement inherits the four UX Studio foundations.
Schema graph wired at every URL. Core Web Vitals budget agreed at scope. Crawler-access policy across 18 named AI crawlers. Schema-per-page rather than templated copies. The full foundations grid lives on the UX Studio overview.
Yes. The auth layer is the first thing scoped, and existing providers are usually the right call when you already have a billing account, an SSO setup, or a compliance audit done. We integrate Clerk and Auth0 in production today; Cognito on request. Custom JWT-only auth is reserved for cases where the buyer specifically needs to own the auth flow end to end.
Yes. Stripe is the default for UK-facing products; the integration covers checkout, subscription billing, SCA, webhook handling, and reconciliation. Stripe Connect for marketplace payouts is part of the Marketplaces and platforms scope. Other processors (GoCardless for direct debit, Adyen for European multi-currency) integrate against the same internal billing abstraction.
Source repository transferred to your GitHub organisation, infrastructure documented and deployed under your accounts (Vercel, Supabase or Neon, Stripe), credentials handed over via 1Password or your secret manager of choice. Plus a written runbook covering deployment, rollback, common debugging paths, and the on-call contacts. The build is yours to operate; we hand the keys over rather than holding them.
Work with valUX
Start where it hurts.
If your organic traffic is sliding, start with a Pulse audit. If you want a programme rather than a one-off, ask about a retainer. Either way, every enquiry is read by a senior architect, and you hear back within one working day.