With 14 years of experiences in web development, I can build a technical solution for your business needs.
If code quality is very important to me, I also values User Experience and propose the best compromise according to costs and time constrains.
Methodology - I like working on an Agile mode with Kanban method.
Tools - Kanbanflow, Asana, or Trello for project management, Git for versioning, functional testing, minifiers and linter to help with Gulp. I usually work with shared Google Docs and Skype.