Codurance is seeking a Contractor Fullstack Developer to join their team in a remote capacity, with the option to work from either Barcelona or Madrid, Spain. The ideal candidate should be well-versed in software craftsmanship principles and best practices including Test-Driven Development (TDD), pair programming, and Agile methodologies. This role requires a strong foundation in SOLID principles and a commitment to quality software development. The position is designed for professionals who are either based in Spain or willing to relocate, with proper work authorization being a prerequisite. The role emphasizes collaborative development practices and modern software development approaches, making it ideal for developers who value technical excellence and continuous improvement.