I build digital products end to end — from the interface people touch to the APIs, databases and infrastructure behind them.
I'm Hasibur Rahman, also known as Hasib. A full-stack developer, builder, and entrepreneur based in Dubai, UAE, with 6+ years of building software and digital products.
I work across the full stack — frontend interfaces and mobile applications through to backend systems, APIs, databases, infrastructure, and deployment.
I don't see development as simply writing code. It's understanding a problem, finding the right solution, and creating something that feels good to use.
I learn best by building. When I want to understand a technology, I'd rather create something with it than just read about it. Some projects start as serious ideas. Others start because I wondered: what if I built this?
I don't want to know only how something works. I want to understand why it works. Exploring new tools, understanding systems, going deeper when something catches my attention.
A fast website matters. A clean interface matters. A thoughtful interaction matters. Good architecture matters. A button that feels right matters. Together, they make a product feel professional.
Easy problems are useful. Difficult problems are interesting. The moments where the obvious solution isn't enough are usually the moments where I learn the most.
02/The studio
KortzLab is a software development studio focused on building digital products for businesses, creators, startups, and individuals.
Hasibur Rahman
Full-Stack Developer
KortzLab
A software development studio.
KortzLab is an extension of what I enjoy doing personally: taking an idea and turning it into something real.
KortzLab takes an idea and turns it into something real — from the first interface through to deployment.
Years of building software have taught me that good development isn't about knowing every technology. It's about knowing how to solve problems. Technologies change. Frameworks change. Tools change. The ability to understand a problem, learn what is necessary, and build a solid solution is what stays valuable.
Hasib's Tech Stack
Frontend
Interfaces, interaction and the layer people actually touch.
Knowing a technology is only part of being a good developer. I focus on choosing the right tool for the problem, writing maintainable code, understanding the systems I'm building, and continuously improving the product after it ships.
My goal isn't to use the most technologies. It's to use the right technologies to build the right solution.
Case studies in progress
In the meantime, this is the kind of thing I build — across 6+ years, from the interface through to the infrastructure.
Engineering you can hear.
I’m a car guy. I love the design, engineering, performance, sound, technology, and the personality behind different machines.
I can spend way too much time looking at cars, learning about them, comparing them, watching builds, and appreciating the details that most people overlook.
For me, cars are another form of engineering. Different machines, different philosophies, different ways of solving the same problem.
Make it move. Make it better.
Code. Cars. Anime. Music. Build. Repeat.
Action · 2002–2017
One of my all-time favorites. The characters, rivalries, friendships, personal growth, and sacrifices make it a series that has stayed with me.
Action · 2013–2023
The story, mysteries, character development, world-building, and constant changes in perspective make it unforgettable.
Thriller · 2006
One of my favorites for its psychological battles, strategy, intelligence, and mind games.
Action · 2024
I enjoy the progression, action, visual style, and the journey of becoming stronger.
Supernatural · 2020
A favorite for its characters, battles, story, and supernatural world.
Action · 2019
Great visuals, memorable characters, emotional moments, and intense battles.
Comedy · 2022
A completely different vibe from most of my favorites, but the characters, comedy, and relationships make it extremely enjoyable.
Action · 2021
I enjoy the story, characters, rivalries, and time-travel element.
Favourite character
Naruto
What I admire about him is his intelligence, discipline, composure, sacrifice, and ability to think beyond the obvious.
“People’s lives don’t end when they die. It ends when they lose faith.”
For me, anime isn’t just about action or entertainment. The stories and characters I enjoy most are the ones that leave something behind — an idea, a lesson, a feeling, or a character that stays in your mind.
Good stories entertain you. Great characters stay with you.
Build Boldly
The Builder
Curiosity, innovation, confidence, and the ability to turn an idea into something extraordinary.
What I admire most is his obsession with building.
He doesn’t stop at “that’s impossible.” He asks: how can I make it possible?
That mindset is something I try to carry into my own work — experiment, build, fail, improve, and build again.
Master Your Craft
The Master of Consistency
Discipline, patience, humility, and mastery.
What inspires me isn’t only what he achieved. It’s how effortless the result can look after years of practice.
He reminds me that being great isn’t always about being the loudest person in the room.
Sometimes it’s about quietly getting better every single day.
“Consistency creates mastery.”
Think Deeper
The Silent Strength
Intelligence, sacrifice, discipline, and staying calm under pressure.
What I admire about him is his ability to think beyond the obvious and make difficult decisions while carrying enormous responsibility.
He reminds me that strength isn’t always loud.
Sometimes the strongest person is the one who understands more than they say.
“People’s lives don’t end when they die. It ends when they lose faith.”
I love turning ideas into real, working products. There’s something satisfying about taking a problem that exists only as an idea and turning it into something people can actually use.
I love software that feels simple. Behind a simple interface, there can be a lot of engineering. I enjoy finding ways to keep systems reliable, maintainable, performant, and easy to understand.
A technically perfect product isn’t enough. I love the small details — animations, interactions, responsiveness, loading states, typography, spacing.
Technology never stops moving. I love experimenting with new technologies, understanding how things work under the hood, and learning from every project I build.
The difficult problems are usually the most interesting ones. I enjoy debugging, researching, experimenting, and finding solutions when the obvious approach doesn’t work.
I love the moment a project goes from localhost to production. There’s a different kind of satisfaction in seeing something you’ve built being used in the real world.
I’m not interested in writing code just for the sake of writing code. I love building things that are useful, meaningful, and worth remembering.
Build things. Break things. Learn. Improve. Repeat.
10/Contact
Have an idea, a project, or a problem that needs solving? I’m interested in hearing about interesting projects, collaborations, and opportunities to build something meaningful.
You don’t need to have everything figured out before reaching out.