Berkay
Çubuk

AI Engineer
Agents & LLM automations in production
Istanbul · working worldwide

I build AI agents that do real work, safely.

Email me about your project → Open for new projects

Worked with

Bizmovo
Star Holden

Agents in production

Agents that work on real accounts and tools every day, not demos that break on the second try.

Guardrails in code, not prompts

Payments, bookings and messages wait for a yes. Enforced in code, so no clever prompt can talk its way past them.

Fits the tools you already use

It plugs into your APIs, inboxes, spreadsheets and internal systems. Nothing new for your team to learn.

Shipping where real money moves

The situation: A crypto exchange: software handles real money, and compliance is not optional.
What I built: A ticketing platform from scratch, plus the admin tools the operations team runs it with. Dictation tooling for writing prompts, and hands-on help moving engineering teams onto AI tools and workflows. Before that, a Travel Rule compliance system.
The result: Thousands of tickets sold in production. The compliance system runs at multiple exchanges.

An assistant you can trust with your accounts

The situation: A useful assistant needs real access: a browser, a terminal, your accounts. That same access is what makes it dangerous.
What I built: A personal assistant in Telegram with its own browser, Linux terminal and memory. It confirms before any payment, booking or message, only uses approved sites, treats web page text as data, and you type passwords and 2FA yourself.
The result: An agent that acts for you, and never spends without asking.

Join the Tamo waitlist ↗

Tamo website: a Telegram chat where Tamo asks for permission before completing a restaurant reservation, and the user allows it — Fig. 01 — Tamo stops before the final click and waits for a yes.

Coding agents that check each other’s work

The situation: One coding agent is a helper. Several running at once turn into a mess without structure.
What I built: Planning agents split the task, execution agents each work in an isolated git worktree, and review agents gate every merge. A mobile app reaches the desktop over an end-to-end encrypted link.
The result: Many agents in parallel, and nothing lands without review.

See Fabrika ↗

Fabrika website: a task board with plan, build, verify and ship columns, and one high-risk task waiting for a human — Fig. 02 — Work flows through plan, build and verify. High-risk changes wait for a person.

How we'd work together

01
You email me
Describe the work that eats your team’s time. No spec needed.
02
We scope it
The workflow, the tools it touches, and what the agent must never do on its own.
03
I build & ship
A working agent on your real systems, in paid milestones, with logs you can read.
04
It keeps running
I watch it after launch and fix what breaks, or hand it over to your team.

In their words

“Delivered what I asked for perfectly again!! Would highly recommend.”
A.R.T.

“Love the website, it's exactly what I wanted. Delivered everything I asked and understood the style and flow of the site really well.”
Star Holden

“I would highly recommend Berkay. He is very intelligent and good in his job… Don't think a second if he says yes I can take this project.”
Molde Biljardklubb