Profile json-schema gem (https://github.com/ruby-json-schema/json-schema) to improve some performance bottlenecks we stumbled upon. Doing devops: provisioning servers and deploying application with test driven Chef recipes and Kitchen. Experiencing a development team full of good engineers implode because of an incompatible CTO. Project lead: Make frontend for most visited pages responsive. Promote importance of TDD and testing best practices in the development team. Frontend Developer, E Furniture Gmbh.