I helped Bellroy's development team transition their fixed width theme to mobile-ready. I've implemented new responsive layouts for their main elements and pages and left them with know-how and a solid foundation to continue on.
BulletProof's new theme is built on a responsive Magento 1.x boilerplate that I've created using Bootstrap, For this particular project, I led the frontend team that built the custom theme and wrote parts of the code.
I've saved an old theme from extinction by sanitising its code, also made it responsive with Bootstrap and face-lifted its design. The old theme was already heavily modified and building a new one from scratch was not an option.