Demircan Celebi
Software engineer in London. Building software since 2009. Alive since 1993.
Currently polishing a game, launching soon.
Projects
2020Litafl & tafl
Viking chess (hnefatafl) playable online, plus its open-source engine.
2019Asonans
Finds assonance in Turkish text.
Posts
2014How I hacked PayPal to create money
Found where PayPal’s fee rules contradicted themselves. Filed a bug ticket instead of writing the script.
2014Stayin’ Alive
Optimal play in two-bullet Russian roulette, then a tool to explore every variant.
Past work
2023 – 2026Erguvan
Cofounder & CTO
Built and maintained KPI tracking and reporting software used by 30+ enterprises, including banks.
Also built Türkiye’s official sustainability disclosure platform as a side quest.
2020 – 2023OakNorth
Software engineer
Data pipelines feeding credit decisioning and portfolio tools, plus code generation that cut weeks off adding a new data source.
2018 – 2019Oliver Wyman
Software engineer
Financial modelling software that compressed months of model-building into days.
2017 – 2018Independent
Software engineer
Bootstrapped a chatbot management platform, including one bot deployed on Securitas’ employee portal (20,000 employees).
2015 – 2017Marketinf
Cofounder
A SaaS product for launching online marketplaces.
2014 – 2015Independent
Software engineer
Web and mobile projects for Sodexo, World Wildlife Fund, and others.
2013 – 2014Metrekare
Software engineer
Joined as employee #2 and built the frontend of its web and mobile apps.
2011 – 2012Digital agencies
Software engineer
Short engagements with Utopic Farm, Rhino Runner, and Katu, building websites and Facebook applications.
Education
2011 – 2017Boğaziçi University
Double major
Management Information Systems and Tourism Administration.