Next.js platforms shipped in weeks, not quarters.

We build the SaaS, dashboards, and internal tools traditional agencies take 12 weeks to deliver. Senior-engineer-led, fixed-price, AI-ready from the foundation.

Live deploy · prod
OverviewUsersRevenueReal-time
Users active
1.2K
MRR
$4.8K
p95
124ms
Uptime
99.9%
Shipped in 3 weeksv1.18.4 · prod
3 wkspilot to production
100%Job Success Score · Upwork
$0platform lock-in fees
The problem

Why agency MVPs ship late and broken.

Most agencies optimize for billable hours, not for shipping. A 12-week project becomes 18 weeks. The MVP launches with three flows that don’t quite work. Then the agency disappears and you can’t find the developer who wrote it. We work the opposite way: tight fixed scope, weekly demos, named senior engineer, code you own from day one. The boring stuff matters more than the buzzwords.

Industry timelines · sample+4–10 wks avg slip
01 · Slip·SaaS MVP
WARN
Plan
12w
Actual
+6w
02 · Slip·Internal dashboard
WARN
Plan
8w
Actual
+5w
03 · Slip·B2B platform rebuild
CRIT
Plan
14w
Actual
+10w
What we ship

Four shapes, one engineering team.

01

SaaS platforms

Multi-tenant SaaS with auth, billing, and the AI hooks where they actually help. Stripe-ready, deploy-day-one.

See case study
02

Internal dashboards

B2B dashboards with real-time data, role-based access, and queries that don’t fall over in production.

03

Internal tools

The ops tool nobody wants to build but everyone needs. Bulk actions, audit logs, the boring middle of every B2B business.

04

Existing-app extensions

Add AI, real-time, multi-tenant, or auth to a product you already have. We work in your codebase, not around it.

Why Zaibex

Side-by-side with a typical agency.

We don’t outbid the cheap shops, and we don’t pretend to be McKinsey. Here’s where the real practical difference lives.

Typical agency
Zaibex
12-week MVP timeline
3–6 weeks to production
Junior dev + PM + designer
Senior engineer owns end-to-end
$25K minimum, hourly creep
$4K–$25K, fixed-price
Generic stack, agency lock-in
Next.js + Postgres + your cloud, you own it
AI bolted on at the end
AI-ready architecture from day one
Hands off after launch
Stay on retainer for the first year
The stack

The exact tools and why we chose them.

No mystery stack, no platform lock-in. You see what we use, you read why, and you own the keys on day one.

01 · Frontend
Next.js 16 · TypeScript

App Router, RSC, edge-deployable. The current production standard.

02 · Database
Postgres · Drizzle

Real ACID, real performance, real schema. No NoSQL improvisation.

03 · Auth
Clerk · Auth.js

Multi-tenant, SSO-ready, social. We don’t roll our own auth.

04 · Billing
Stripe

Subscriptions, metering, invoicing — the only billing stack worth maintaining.

05 · Hosting
Vercel · Railway · AWS

You pick. We deploy to your cloud, not ours.

06 · AI hooks
Claude · OpenAI · pgvector

AI-ready from day one — add features when you need them.

The process

Discover · Architect · Build · Ship.

Four stages, named timelines, named deliverables. No open-ended discovery. No moving goalposts.

01·3 days

Discover

We scope the build to fit the timeline. Five flows, not fifteen.

  • Scoped feature list
  • Architecture decisions
  • Weekly demo cadence
02·3 days

Architect

Schemas, routes, auth model, deployment plan — written down before code starts.

  • Data model
  • Routes + auth spec
  • Deployment plan
03·2–4 weeks

Build

Weekly demos. Bugs fixed in days, not sprints.

  • App on staging
  • Test coverage on critical paths
  • Production-ready build
04·1 day

Ship

Cutover during a quiet hour. We’re on-call for 30 days, on retainer thereafter.

  • Production cutover
  • 30-day post-launch support
  • Runbook + monitoring
In production

Real numbers, named client.

+50%AUM growth after platform launch
Multi-currency B2B fintech platform
Read the full case study
The problem

A B2B fintech needed a multi-currency platform with KYB/KYC, multi-tenant auth, and the kind of audit trails regulators ask for.

Our approach

We built a Next.js + Postgres platform with Stripe-connected payments, role-based auth, real-time dashboards, and the boring compliance work.

The outcome

50% AUM growth post-launch. Platform serving multiple currencies, in production, audit-ready.

Pricing & timeline

Fixed price. Fixed scope. Public ranges.

We don’t hide pricing behind a sales call. Pick the tier that matches your stage. The discovery call confirms scope, not budget.

Pilot
$4K
3 weeks
  • Working web app with one core flow
  • Auth + database + UI
  • Production deployment on your cloud
  • Source code ownership
  • 3 months of post-launch support
Custom
Let's talk
Tailored to scope
  • Full SaaS, internal tool, or platform
  • Senior engineer-led engagement
  • Integrations, billing, multi-tenancy
  • Ongoing support tailored to your team
Honest answers

The questions we actually hear on calls.

What’s the smallest project you take?

$4K, 3 weeks. Below that, you’re better off with a no-code tool or freelancer.

Why Next.js instead of another framework?

Because we ship in it daily, it’s the production standard for Vercel-backed teams, and React Server Components let us write less client code. We’re happy to use Remix, Astro, or SvelteKit when it’s the right call — most often it isn’t.

Will you build it in our cloud or yours?

Yours. We deploy to Vercel, Railway, AWS, or your infrastructure. You hold the keys.

Can you work with our existing codebase?

Yes. About a third of our work is extensions on existing apps. We read the code, learn the conventions, and ship in your style.

Will it be AI-ready?

Yes, by default. We design the data layer with retrieval in mind and leave hooks for LLM features. Add when you’re ready.

What about ongoing maintenance?

Optional monthly retainer covering bug fixes, small features, monitoring, and on-call. Or take the code and we never speak again. Your call.

Ready when you are

Every agency promises fast and quality. Most pick one. We pick both — and the way we do it is the boring stuff: senior engineers, fixed scope, weekly demos, code you own from day one. The work that doesn’t sell, but ships.