Cash management at Tüpraş from September 2026
I work in finance and I build my own AI systems. From September 2026 I am an assistant specialist in cash management at Tüpraş headquarters.
Before that I traded and supported portfolio management at Ünlü & Co, worked on private credit and late stage venture deals at Venley Capital, and graduated in Business and Economics from the University of Bologna.
Outside of work I build tools with Claude and write about what breaks. Cowork OS is the system I use every day, and it is public. I am also starting a company, which is early and quiet for now.
A folder system that gives Claude memory, routing between separate workstations, and a writing voice extracted from messages I had actually sent. I have used it every day since January. It has produced 49 daily market briefs and 16 weekly ones since May, and it is where most of the writing below came from.
github.com/ymnlkn/cowork-osA toolkit for students applying to universities abroad: grade and ECTS conversion, cost estimates, application deadlines, and a statement of purpose checklist. Built in Next.js to around 400 pages across English, Italian and Turkish. Only a demo is published, and development is paused.
mycollab.orgEarly, and quiet for now.
A series on what I have built with Claude, and on the parts that failed.
The automation had learned to justify whatever was on the watchlist. What changed when I rewrote the prompt.
Each rule with a real file from my own projects as the proof.
No prompt fixed it. Extracting register rules from messages I had actually sent did.
The three parts of Cowork OS: memory, routing, and a voice taken from my own writing.
Corporate treasury, joining through the Nextremers young talent programme.
Private credit and late stage venture deals for global wealth management clients, with outreach to more than 20 CIOs and family offices.
Distribution of Goldman Sachs warrants into Turkish markets, and integrated models for institutional risk and return.
Rebuilt reporting for senior executives and international buyers including Walmart, cutting reporting time by 20%.
A €300 million investment case for battery energy storage across European markets. I structured the investment options and the trade-offs between them, and worked the financial and operating data down to the value drivers that actually moved the case.
A full market entry strategy for a luxury brand: segmentation, competitor analysis, positioning and financial projections. Finalist among more than 60 European teams.
Financial analysis, corporate finance, statistics and organisational behaviour.
English language curriculum, quantitative and social sciences.
Financial modelling and valuation, Python, SQL, advanced Excel. English, Turkish, Italian.
I like hearing from people working in finance, in AI, or in both. Email is the best way to reach me.