Full-scale SaaS application development with secure authentication, multi-tenant database architecture, and professional UI/UX design.
If you are looking for custom SaaS development and you want it built by someone who has shipped and operated a real product, you are in the right place. I'm Waqas Ahmed Waseer, a full-stack engineer with 8+ years of work and a Top-Rated-Plus rating on Upwork. Most of what I do is software development for startups that need a working product, not a slide deck. I handle SaaS MVP development end to end: auth, billing, multi-tenancy, the admin panel, and the boring infrastructure that decides whether your app survives its first hundred users. When founders ask me to build a SaaS, they are usually hiring me because I have done the whole thing for myself, not just for clients.
Here's the part that separates me from agencies that have never carried a pager. I build and operate my own production AI SaaS, FlowMaticX, and real businesses run on it — including Armela, a real-estate firm in Dubai. That means I am not theorizing about subscription churn, tenant isolation, or what happens when a Stripe webhook arrives twice. I have fixed those things at 2am on my own product. You get an engineer who has felt the consequences of his own architecture decisions.
A SaaS is more than a login page and a database. The things that quietly sink early products are the things I treat as table stakes:
I am opinionated about tooling because the wrong choice costs you months. For most SaaS work I use Prisma with MySQL for a type-safe data layer that survives schema changes, a modern React/Next.js front end, and Stripe for billing. FlowMaticX runs on exactly this — Prisma, MySQL, multi-tenant, Stripe, RBAC. I am not selling you an experiment; I am selling you the stack I trust enough to run my own product on. If your needs push toward Postgres, a different framework, or specific AI integrations, I'll tell you plainly and adapt. The goal is a system you or another engineer can still maintain in two years, not a clever house of cards.
I scope SaaS work in tiers, and delivery tracks the scope rather than a one-size-fits-all promise — roughly 14 days for a focused build, 21 days for something with more moving parts, and up to 45 days for a full multi-tenant platform. Here's the actual sequence, not a vague timeline.
By the end you have a deployed, billable product real users can sign up for and pay for — the same bar I hold FlowMaticX to.
Agencies sell you a team and pass your project between juniors. You get one senior engineer who writes the code, makes the architecture calls, and stays accountable. I have a track record you can verify: FlowMaticX is a live multi-tenant AI SaaS that real businesses run on in production, and KandyLover shipped with a 32+ module operator admin. Proof, not promises. I'd rather show you a running product than recite buzzwords.
The best time to get the foundations right is before you have customers depending on them. The second-best time is now, before the cracks get expensive.
Founders validating an idea who need a credible MVP fast. Operators who have outgrown spreadsheets and need a real platform. Existing teams stuck on a SaaS build that lost momentum. If you have a clear problem and a budget to match the scope, I can usually tell you in one call what tier your build fits and what it will take.
Let's figure out what your first version actually needs — and what it doesn't. Book a free call and we'll scope your SaaS together, honestly. Want proof first? Take a look at my work, including FlowMaticX and the platforms I've shipped.
Node.js / Prisma
NextAuth / JWT
Stripe Subscriptions