Quick answers about Muhammad Haseeb — where he's based, what he does, what he builds and writes about, and how to get in touch.
Quick answers to the questions people ask me most.
I'm Muhammad Haseeb: a software engineer, indie builder, and lifelong student of how things work. By day I'm a Principal Software Engineer at Xref, where I lead backend architecture for a global HR-tech platform. Outside work I build small products, AI tools and experiments.
I live and work in Sydney, Australia. That's my home city and country.
I lead backend architecture at Xref, a global HR-tech platform: AWS infrastructure (Lambda, API Gateway, RDS, SQS, SNS), the standards the team ships with, and mentoring engineers. I've been at Xref since 2022, first as a Full Stack Engineer, then a Senior Engineer, and now as Principal Software Engineer.
Yes. If you're hiring, I'm open to hearing about a new job: full-time roles, freelance and consulting projects, advising startups and mentoring engineers, and collaborating on side projects. The best way to start a conversation is to email me at hello@muhammadhaseeb.me with a few lines about what you have in mind.
I graduated from the University of Central Punjab in Lahore in 2018. My degree is a Bachelor of Computer Science.
Yes. I founded HireBolt, a recruiting platform, which was acquired in 2023. I also build and launch my own products, like SalahMate and StandupMonkey.
More than 7 years. I've been shipping backend systems since 2018, at Arbisoft, Squibler and Xref.
SalahMate, a free prayer tracker for Android with prayer times, habit logging, streaks, circles and a smart Fajr alarm; and Pico, a local-first AI buddy for the Mac that runs on Apple Intelligence. I also shipped BreakReminder, a macOS menu bar app for eye breaks.
Mostly Python, Django, AWS, Postgres, TypeScript and React, plus LLMs. For my Mac apps I use Swift, SwiftUI and AppKit. The full list is on my experience page.
Building useful products, designing reliable systems, and learning through shipping. I write on my newsletter, byhaseeb on Substack, which I started in October 2026.
No. My earlier articles are still on Medium, some published in Python in Plain English and Stackademic, covering backend engineering, Python and Django, system design, AI and LLMs, and career growth for software engineers. I don't post there anymore; new writing goes to Substack.
Yes, byhaseeb on Substack. Subscribe there to get new essays by email.
I experiment with AI agents and AI-powered products, 3D print things and design physical products, and try to ship more than I plan.
It's an AI that answers as me, using only what I've written on this site. It can get things wrong, so for anything important, email me at hello@muhammadhaseeb.me.
If something I built was useful, you can buy me a coffee.
Email me at hello@muhammadhaseeb.me, or find me on GitHub and LinkedIn.