Yasir Arfat — Software Engineer & Systems Builder

I design systems that feel obvious—once they exist.

I am Yasir — a full-stack engineer who creates applications that create convenience, gracefully and deliberately. I build coherent systems where every layer aligns, shaping products that feel intuitive, inevitable, and quietly powerful.

I optimize for clarity, precision, and long-term vision. The systems I design are seamless on the surface and rigorously structured underneath—built to evolve, adapt, and endure. Good systems don’t just work—they make alternatives feel obsolete. The best products remove friction so completely they disappear from attention.

Driven by a strong sense of direction and ownership, I focus on creating experiences that elevate everyday interactions. If you're building something non-trivial or high-leverage, reach out.

About YasirOS

YasirOS is a browser-native personal operating system built by Yasir Arfat. It is the canonical home for his work — apps, projects, blog, and tutorials — structured as a real OS desktop with windows, a terminal, and a filesystem.

What I work on

Software engineer with 7 years building and shipping production web applications end to end — from ambiguous problem framing to deployed, operable systems.
Now focused on React Native mobile development and AI engineering: integrating AI deeply into existing products, and practicing AI-augmented development to move fast without giving up rigor.
I build applications that create human convenience — coherent systems that feel intuitive, inevitable, and quietly powerful.

Skills

Languages: TypeScript, JavaScript, Python, PHP, SQL, C / C++, Go.

Mobile: React Native, Expo, Mobile UI / UX, Native module integration, App store deployment.

AI engineering: AI integration (LLM APIs), Prompt engineering, RAG & tool use, Agent workflows, AI-augmented development.

Frontend: React, Next.js, Modern CSS (Tailwind), State & data management, Realtime interfaces.

Backend: Node.js, API design (REST, GraphQL), Databases (PostgreSQL, MongoDB, MySQL), Authentication & realtime systems, Laravel / PHP.

Infrastructure: Linux, Docker, Cloud (AWS, Vercel, Firebase, Supabase), Deployment & CI/CD, Caching, scaling, and server operations.

Practice: System design, Data modeling, Performance & scalability, Debugging & testing, Documentation.

Contact

Email: email@yasirarfat.com. GitHub: https://github.com/beingyasirarfat. LinkedIn: https://linkedin.com/in/beingyasirarfat. Twitter: https://x.com/beingyasirarfat.

Sections of this site

Blog — long-form writing on engineering and systems.
Tutorials — implementation-first tutorials.
Résumé (PDF)