A Next.js team that has fixed enough apps to build yours right.
Most of our week is spent repairing Next.js apps that were built fast: webhooks that fire twice, migrations through the pooler, auth in a cached layout. When we build from scratch, those mistakes are the ones we design out on day one.
Good fit
- 1A SaaS or marketplace MVP with auth, billing, a dashboard and an admin panel, and a founder who wants it to survive its first 1,000 users.
- 2A version two: the MVP proved the market and the codebase cannot carry the next year.
- 3A product with real edge cases: multi-tenant permissions, Stripe Connect, background jobs, file uploads, AI features with cost limits.
- 4A team that wants the code, the repo and the infrastructure in their own name from the first commit.
- 5Not a good fit: a brochure site, a design-only engagement, or a "just make it look like X" clone with no product decisions made.
How we build
1
Scope in writing
Two working sessions to turn the idea into a scoped build: user journeys, data model, integrations, what is out. You get a fixed price and a week-by-week plan.
2
Foundation first
Repo, CI, staging, Postgres with migrations, auth, error monitoring and the deploy pipeline before any feature. It takes a week and it is the difference between a demo and a product.
3
Money path, then everything else
Signup, billing and the core value flow ship first with tests. Dashboards, admin and polish follow. You see a working staging URL every week.
4
Hardening
Idempotent webhooks and cron, rate limits on paid actions, secrets audit, load test on the hot paths, and a security pass on every endpoint that touches user data.
5
Handover
Architecture note, runbooks, and a recorded walkthrough. You own everything. Retainers are optional and month-to-month.
Our default stack, and why
- Next.js App Router on Vercel or a plain VPS, whichever your traffic and budget justify
- Postgres on Supabase or Neon, with migrations and a direct URL for the CLI
- Clerk or Supabase Auth; never a hand-rolled session system
- Stripe with database-enforced idempotency and a queue-backed webhook
- Inngest or a Postgres-backed queue for background jobs and AI pipelines
- Sentry, PostHog, and a staging environment from week one
- Playwright smoke tests on the flows that make money
- TypeScript end to end, Drizzle or Prisma, and a README a new hire can follow
What a proper build costs
For a typical SaaS with auth, dashboard, Stripe, email and admin. Nothing exotic.
| Scope | Typical price | Time |
|---|---|---|
| Scoped MVPClean codebase with tests, real auth, Stripe that handles edge cases, monitoring, CI/CD. | $15,000–$25,000 | 6–10 weeks |
| Growth-ready V1Adds proper data design, staging, automated tests, performance work, security audit, documentation. | $30,000–$60,000 | 3–5 months |
| OngoingA founder-level engineer embedded with your team after launch. | From $6,000 / month | Month to month |
USD, fixed price for scoped builds. Yes, this is more than a $5k freelancer quote. It is also the version that is still running a year later.
Questions we get about this
Why not just use AI tools to build it faster?
We do use them, for UI, tests and scaffolding. They are bad at data modelling, security and payments, which is exactly where our rescue work comes from. An experienced engineer using AI is 30 to 50 percent faster; a junior using AI produces bad code faster.
Do we own the code?
Yes. The repo is created in your GitHub organisation on day one, the infrastructure is in your accounts, and every commit is visible while we work. There is no "finished product" handed over at the end.
Can you take over a half-built project?
Often, yes. It starts with the same 48-hour assessment as a rescue: we tell you what is salvageable and what is not before you spend more.
What if we need mobile too?
React Native with Expo, sharing the same backend. We ship the web app first unless the product is mobile-only; a second surface before the first one is proven is usually wasted money.
How do you handle timezones?
We overlap at least four hours a day with US and European working hours, run calls in your time zone, and put a written update in Slack every Friday.
Read how we fix it
Next.js PPR Auth Gotchas: Static Bail Out (2026)
Next.js PPR can break builds when auth reads headers/cookies in the wrong place. Here’s the fix playbook we use in 2026.
Fix Prisma Migrate PgBouncer 's0' Error (2026)
Getting ERROR: prepared statement "s0" already exists? Here is the fix for Prisma Migrate with PgBouncer pooling in 2026.
revalidatePath in setTimeout Bug (2026)
In Next.js App Router, revalidatePath/revalidateTag can silently no-op inside setTimeout. Here’s how to spot it and ship safe fixes in 2026.
Vercel Cron Runs Twice on Deploy (2026 Fix)
Stop Vercel Cron endpoints firing on deploy or twice per schedule. A 2026 playbook for idempotency, headers, and safe guards.
Next.js Middleware Ate My POST Body (2026 Fix)
Fix empty POST bodies in Next.js when middleware runs on Netlify/Vercel: root causes, real fixes, and what to ship in 2026.
Cursor Playwright Tests Flaky in CI (2026)
Cursor can write Playwright tests fast. Here are the CI-only failure modes that make them flaky, plus fixes that stick (2026).
Tell us what you want to build. We reply with a scope and a price.
One of the founders reads it, not a sales team. Within 48 hours you have a written assessment and a fixed price. If it is a two-hour fix, we tell you that too.
Prefer to talk first? Book a 30-minute call with Mahima. No pitch deck.