Hi! I’m Karol, I’m a distributed systems architect and a domain expert in vacation rental industry, currently working as CTO at BookingSync.
Thanks to multiple years of experience, working on difficult challenges and being committed to learning new things every day, I had a chance to solve a variety of problems. The things I particularly enjoy working on and are areas of my expertise are:
- distribitued systems architecture
- building microservices
- building highly-performant REST APIs
- large scale Rails applications
- payments/credit card processing and PCI DSS compliant platforms
- working with legacy applications and making them maintainable
I strongly believe in always giving back. That’s why I’ve been involed in many open source projects and have been sharing knowledge on multiple occasions (including writing a book and releasing it for free for everyone). I’m always happy to do paid open souce work, mentor developers and write guest blog posts.