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
Role
Full-stack & systems engineer
Based
United Kingdom (Remote)
Now
Building Restricted, a type-1 hypervisor
Open to
Full-stack web, backend APIs, systems & trading infra, AI engineering.
Full-time, part-time, or contract.
Remote.

Full-Stack · Systems · AI Infrastructure · UK / Remote

From the hypervisor to the browser.

I'm Dogukan, usually Khan, a 21-year-old systems and software engineer based in the UK.
I build end-to-end software: responsive web applications and resilient APIs that people rely on, powered by high-performance backends and AI infrastructure that never choke.

On product engineering, I ship modern web apps in TypeScript, React, Astro, and Tailwind, backed by clean REST, WebSocket, and gRPC APIs in C# / .NET, Node.js, and Rust.
When latency, throughput, or memory matter, I write Rust, C++, C, and x64 assembly: zero-allocation trading engines, custom retrieval servers, and Windows kernel drivers.

Because my background begins below the OS—on Intel VT-x hypervisors and memory internals—the code I write up the stack is fast by default: no memory leaks, no cascading connection drops, and no dependency I can't explain.
If a number appears on this site, there is a writeup behind it that says how it was measured.

Web & APIs

TypeScript, React, Astro, C# / .NET, REST, WebSockets, gRPC

High Performance

Rust, C++, zero-allocation engines, low-latency infrastructure

Systems & AI

Model eval (Turing/Outlier), RAG retrieval, kernel & VT-x