I am an independent developer and OSCP-certified penetration tester.

I am an independent developer and OSCP-certified penetration tester with more than a decade of experience with Rails.

I can help you with anything security related: auditing, penetration testing, implementing security features.

I also have extensive experience in performance optimization of Rails applications. If you want to lower your hosting costs and looking for someone to make your application's performance better, I am a good candidate to help you with that.

I can also navigate my way around in legacy code, during my career I've worked with many applications that had a lot of technical debt, I can help to handle them.