UST España & Latam is seeking a Senior DevSecOps Engineer to join an AI-first Developer Platform team supporting a major UK financial services client. You will build and automate secure developer tooling, CI/CD platforms and infrastructure with AI-enabled automation. Role is 100% remote for candidates based in Spain, with English mandatory and Spanish desirable. Strong hands-on experience in DevSecOps, CI/CD, IaC, and observability is required.