Senior Full Stack Engineer - AI Focus, 3-6 Mo (Barcelona)

SustainRecruit Talent is seeking a Senior Full Stack Developer to join a high-growth AI-focused tech team in Barcelona on a 3–6 month engagement. You will work across frontend, backend, and cloud across Next.js, React, Tailwind, Python and AWS to deliver high-quality software.

You’ll collaborate with designers, product managers and backend engineers, mentor junior developers, participate in Agile ceremonies, and contribute to performance, security and testing.