I’m Seyithan, entrepreneur and tech lead in Berlin who makes apps and websites.
Want to collaborate or hire me?
// currently working on
// currently working on
Sempi
Sell your valuable items without having to worry about writing descriptions, setting prices, posting on different platforms, or talking to buyers.
Tech stack: Ruby on Rails, Postgresql, Docker, alpine.js, tailwindcss
Professional experience
I’ve worked at various developer and engineering manager positions since 2011, latest being a senior engineering manager position at Delivery Hero where I was in charge of 2 teams and 20+ engineers.
Other work
I also develop my own app and website projects. You can find these in detail below.
My CV
I am an engineering leader with a proven track record of managing cross-functional teams of engineers and a second-layer of engineering managers. At the age of 23, I co-founded a software development company, where building a strong team of engineers and designers and managing clients has given me strong business and product acumen. I’ve been developing for iOS (both Swift and Objective-C) for 12 years, for backend with Ruby on Rails for 6 years and Kotlin for 2 years. I’m familiar with various frontend and backend stacks. I’ve released close to 10 apps and websites, designing and coding the entire stack by myself.
I currently work at my own startup, Sempi, as a CTO, managing engineering and product.
Collaboration?
Do you need help with your mobile app or your website? Or do you need a teammate with tech and product leadership experience? Or are you a fellow software engineer in need of some help?
You can hire me as a contractor, full-time employee or an advisor or mentor.