Dogukan Sar standing alone in a snow-covered street at night, footprints leading toward the camera
UK · 5 Jan 2025, 06:32
Name
Dogukan Sar, usually Khan
Based
United Kingdom
Now
Building Restricted, a type-1 hypervisor
Open to
Systems, trading infrastructure, AI/ML infrastructure, and full-stack work.
Full-time, part-time, or contract.
Remote.

Systems & software engineer · United Kingdom

From the hypervisor to the browser.

I'm Dogukan, usually Khan.
I write Rust, C, C++, and x64 assembly when the problem is latency, memory, or hardware, and C#, .NET, and TypeScript when the problem is something people have to use.
Lately, the retrieval and inference systems in between.

The deepest work is on Windows, below the operating system: a Type-1 hypervisor on Intel VT-x, kernel drivers, reverse engineering, and the debugging tooling needed to trust any of it.
The same habits carry up the stack: typed contracts, measured performance, and no dependency I can't explain.

The rest is infrastructure and product: a market execution engine with no allocation on its hot path, a retrieval server that grades its own evidence before returning it, agent tooling in Node, and the web and .NET applications around them.
If a number appears on this site, there is a writeup behind it that says how it was taken.