Siarhei Kazakou portrait

Hey, Siarhei is here

UX designer/builder across AI infrastructure, applied ML, developer tools, and agentic workflows.

Currently @ Google · 2018–present · Research → CoreML, working on tools like ML experimentation platforms, TPU profilers, and an agentic design component factory for technical products.

01 / about

About me

Somewhere along the way, static mocks stopped being my deliverable. My work looks closer to UX engineering now: I design in code, keep experiments in repositories, and ship changes to production alongside engineers, because that is where the final quality of a product is actually decided.

This site is a working example of that practice. It is designed and built in collaboration with coding agents, and the record is public: the decision log tracks the choices as they happened, the labs hold explorations that never shipped, and the notes carry what I am learning along the way.

Before focusing on AI infrastructure and developer experience, I spent years building AR products and ML-driven creative tools: authoring systems, effects pipelines, on-device ML prototypes, virtual relighting, and background replacement. That mix still shapes how I think: systems need structure, but they also need texture, motion, and craft.

02 / notes

Notes

Field notes on designing AI systems from inside the constraints.

03 / labs

04 / contact

Contact

heysiarhei@gmail.com

+1 650 334 8069

Bay Area, CA

Open to AI infrastructure, developer tools, applied ML, and agentic experiences.