I build SaaS products& mobile apps thatactually scale.

I'm Umair — a senior full-stack developer turning startup ideas into production-ready platforms with Next.js, NestJS and Flutter.

4.5+
Years shipping
50+
Projects delivered
15+
Technologies
Next.js✦NestJS✦React✦Flutter✦TypeScript✦PostgreSQL✦AWS✦Docker✦Redis✦Supabase✦Stripe✦MongoDB✦Node.js✦Next.js✦NestJS✦React✦Flutter✦TypeScript✦PostgreSQL✦AWS✦Docker✦Redis✦Supabase✦Stripe✦MongoDB✦Node.js✦
01 Selected work

Products shipped to real users.

A selection of platforms and apps built for startups and businesses — each one live in production.

02 About

Most developers write code. I build businesses.

Over 4.5 years I've shipped 50+ projects — from SaaS platforms handling real payments to mobile apps with thousands of active users. I don't just understand the tech; I understand why your product needs to work and how to get it there.

When I'm not shipping code, I share what I've learned building real products on my YouTube channel @umairdev.

Umair Saleem
Senior Full-Stack Developer
Watch on YouTube
Umair Saleem
Umair Saleem
Senior Full-Stack Developer
Available
03 Expertise

The stack behind the work.

Battle-tested tools chosen for reliability, performance and speed of delivery — across the full product lifecycle.

01

Frontend

Interfaces that convert

ReactNext.jsAngularTypeScriptTailwind CSSRedux
02

Backend

APIs that scale

Node.jsNestJSExpress.jsSocket.IORedisStripe
03

Mobile

Apps people love

FlutterKotlinReact Native
04

Database & BaaS

Data that's safe

PostgreSQLMongoDBSupabaseFirebase
05

DevOps & Cloud

Infra that holds

AWSDockerGitVercel
04 Services

Some of what I build.

Pick the stage you're at — or hover the cards and see where your idea fits.

Mobile apps

iOS & Android

Backend & cloud

APIs that scale

SaaS platforms

Built to scale

MVP builds

Idea to launch

Product consulting

Architecture & advisory

Not sure which one you need?

Tell me about your idea — I'll point you in the right direction.

05 Testimonials

What clients say.

4.9 · Level 2 on Fiverr
“Very good experience. Umair was exceptional, nice to make any type of amendments. He went above and beyond to add new features to my app and was very keen to be invested in my app. Would definitely order again from him.”
yutish09
Mobile App Owner · Fiverr
“Umair did an excellent job! Good communication and high-quality work. Highly recommend him for app development!”
robertacwebster
App Development Client · Fiverr
“Done a fantastic job. I asked him to go through the API doc and add features exactly as they should be. He went above and beyond to achieve the desired result. Nice working with him on phase 1 — now we begin phase 2. Excited!”
wardhaan
SaaS Client · Fiverr
“Umair is very hard working. He is very knowledgeable and digs deep to understand requirements. We will make more orders! Quality work and great communication!”
kateju84
Repeat Client · Fiverr
“Very fast and accurate delivery. For sure we will work again! Tks!”
alexandrusir728
Fiverr Client
“The best work I have ever received. The seller is committed and understands my project.”
vecent
Fiverr Client

Swipe to see more →

06 FAQ

You have questions, I have answers.

Still unsure about something? Reach out and I'll answer directly.

07 Contact

Let's build
something great.

Have a product in mind, or an existing one that needs a hand? Tell me about it — I reply within 24 hours.

Prefer email? Write to umair.swen@gmail.com.