SaaS Web App Development for Startups

■ Who this is for

Who Our SaaS Web App Development Service Is For

• Funded SaaS founders building V1 or scaling toward Series A
• Self-funded founders with a working prototype that needs to ship
• Product teams that need senior engineering capacity without hiring
• Companies migrating from no-code or AI-built prototypes to a real codebase
• Existing SaaS products that need a rebuild or major architecture overhaul

■ Probably not a fit

We'll be honest if it's the wrong call

• Pre-idea founders looking for a technical co-founder
• Projects that only need a marketing site or landing page
• Engagements that need a single hourly contributor
• Teams looking purely for the cheapest possible bid

Frontend — Next.js (App Router)

Real server rendering, real routing, real image and font handling. We pick Next over Remix because the ecosystem and hiring pool is deeper, and because most SaaS frontends benefit more from incremental static rendering than from Remix's loader model.

Backend — Node.js (Fastify) or Laravel

Node + Fastify when the product is API-heavy and needs websockets or AI streaming. Laravel when the surface area is large CRUD, admin, and the team wants batteries-included. We avoid microservices until you genuinely need them — usually never for the first two years.

Database — PostgreSQL

Default for almost every SaaS. ACID transactions, JSON columns when you need flexibility, full-text search good enough for most products, and a clear path to read replicas when you scale. We use Mongo only when the data is genuinely document-shaped.

Auth — Clerk or custom JWT + sessions

Clerk if you want SSO, magic links, and org/team support without building it. Custom auth when you need full control over the session model — usually for products with strict tenancy or compliance needs.

Billing — Stripe

Plans, free trials, proration, usage-based metering, dunning. We have a reusable billing pattern that handles edge cases like mid-cycle plan changes, failed cards, and grandfathered pricing. Not glamorous — billing bugs lose customers fast.

Hosting — Vercel + AWS or DigitalOcean

Vercel for the frontend. AWS or DigitalOcean for the backend, database, queues, and storage. We avoid lifting and shifting onto any single PaaS that locks you in. Boring infrastructure ages well.

One week. We map the product, users, business model, and the hard problems hiding under the surface. Output: a written architecture and a concrete plan for the first 90 days.

We choose the stack, design the data model, and define the multi-tenancy approach before writing production code. Decisions get documented so the next engineer to join is not confused.

Auth, billing scaffolding, base UI system, CI/CD, and a deployable shell. By the end of sprint zero you have something a real human can log into.

Two-week sprints. Planning, build, demo, ship. You see progress every Friday. Scope changes get re-baselined at sprint boundaries, not mid-sprint.

Performance pass, security review, load test against the realistic peak, error reporting and analytics wired up. Launch with monitoring already running.

We stay on full availability for the first month after launch. Real users find real bugs. Then we move into the standard maintenance and feature retainer if you want us to keep going.

Stage 1

SaaS MVP

Validate the core loop with real users

• One workspace, single-tenant data model
• Email + OAuth auth, light RBAC
• Stripe checkout, one paid plan
• Single-region deploy, no SLA
• Manual onboarding admin tools

Stage 3

Series-A ready

Codebase that passes diligence

• Schema-per-tenant where compliance demands
• SSO, SCIM provisioning, SOC2-ready logs
• Usage-based metering and invoice generation
• Multi-region deploy, blue-green releases
• Performance budgets and load-test gates in CI
• Documentation, ADRs, runbooks for diligence