Most web app builds stall in the same three places: auth, billing, and the AWS account. Each one is a swamp. Each one looks like a checkbox in the estimate and a month in the calendar.
So we do them first. A Web App build with us runs three to five months or more, depending on scope, and the first four weeks of it go to this foundation before any of your product's features exist. By the end of that month you have a billed, authenticated, deployed skeleton that everything else is built on. Here is how those weeks break down.
Fixed price, you own the code, we exit. The order below is the reason the rest of the build stays on schedule.
Week 1: AWS account and the boring foundation
The first week is account hygiene. Nobody demos it, but it decides whether weeks 2 through 4 go smoothly.
We set up the account properly. Separate IAM roles, no root keys floating around, least-privilege on the service accounts. Billing alerts on day one, because surprise bills are how trust dies.
We pick boring infrastructure on purpose. A managed database, a container or Lambda runtime, a CDN. Terraform for the lot, so the account is reproducible and not a pile of click-ops nobody can explain later.
The failure mode here is over-building. Teams reach for Kubernetes on a five-user MVP. We size the infra to the traffic you actually have. You can always add load balancers when you have load.
By Friday of week 1, there is a deployed skeleton app behind a real domain with HTTPS. It does nothing yet. That is fine. The pipe is open, and every feature for the rest of the build ships through it.
Week 2: Auth, done once, done right
Auth is where most builds quietly rot. People hand-roll session logic, store passwords wrong, and ship a login that leaks.
We do not hand-roll it. We use a managed identity provider and wire it correctly. Email and password, OAuth if you need Google or GitHub login, password reset that actually works.
The real work is the boundary. Every protected route checks a verified token server-side. The frontend never decides what you are allowed to see. That call lives on the backend, every time.
We also build roles early, even if you only have one role today. Adding an admin tier later is cheap when the check is already there. It is expensive when you have to retrofit it into 40 endpoints.
The failure mode is trusting the client. A token in local storage is not authorization. We treat the server as the only judge.
Week 3: Stripe and the parts nobody tests
Stripe takes the most engineering judgment, not the most code. The happy path is an afternoon. The edge cases are the job.
We set up Checkout or Elements, your products and prices, and the subscription logic if you are recurring. That part is quick.
Then we handle webhooks, which is where real billing systems are won or lost. A payment succeeds, your server has to hear about it and update the account. We verify webhook signatures, make handlers idempotent, and assume Stripe will retry. It will.
We test the ugly cases on purpose. Failed cards, disputed charges, a webhook that arrives twice, a user who closes the tab mid-checkout. Each one has a defined outcome instead of a guess.
The failure mode is granting access on the client redirect instead of the webhook. That is how people get the product for free. Access is granted when the webhook confirms the money, not a second before.
Week 4: Wire it together and harden
Week 4 is integration. Auth, billing, and the skeleton stop being three islands and become one foundation.
A signed-in user hits a paywall, pays, and their account flips to active without a page refresh confusing them. We test that full loop end to end, with a real test card, more than once.
Then we harden. Rate limits on the auth and payment routes. Input validation. Logs and alerts that page someone when checkout breaks at 2am. Secrets in a secrets manager, never in the repo.
Then the real product work starts: your features, your design, your integrations, built on a foundation that already takes money safely and knows who is signed in. At the end of the build you get a short runbook, the Terraform, and a walk-through of the account. You own the code. There is no lock-in, because we are gone after handover and the thing has to run without us.
Why the foundation comes first
Auth, billing, and the account are the parts that surprise a schedule when they are left to month three. Doing them first means every feature after that is built on a boundary that already works, and a slip shows up in week 2, not the week before launch.
It also holds because we are not learning Stripe, auth, or AWS on your budget. We have built this same foundation into our own products, and Patrick is an ex-AWS Federal Solutions Architect, so the foundation is a known quantity, not a research project.
Fixed price, every time. You see the number before we start, and it does not move because a webhook surprised us. Web App scope, timelines and pricing live on the services page.
If you have a build stuck in the auth-billing-AWS swamp, or you want a clean one done right the first time, book a call. It is a free 30 minutes, and you will leave with a straight answer either way.