Overview In this role you will design, build, and maintain scalable Kotlin backend services that power personalized customer experiences within a global loyalty platform. You will work closely with cross-functional teams to deliver cloud-native solutions and improve architectural practices. The position offers exposure to modernDevOps practices, IaC, and data-driven features at scale. You will contribute to a collaborative, international environment and participate in a long-term, career-focused opportunity with a leading tech employer. Compensaciones / Beneficios * 4 remote working days per week * 27 days of annual leave * annual salary review * career development plan * permanent direct contract * international and technology-driven environment Responsabilidades * Design, develop, and maintain Kotlin-based backend services * Build and manage scalable infrastructure using Terraform, Docker, and Kubernetes * Operate in GitOps environments with Flux * Create and maintain CI/CD pipelines via GitHub Actions * Work with Google Cloud Platform services (BigQuery, GKE,



Pub/Sub) * Integrate APIs and ensure code quality with automated tests (Kotest, Testcontainers) * Collaborate within agile processes (Scrum/Kanban) * Contribute to continuous improvement of development processes, architecture, and engineering practices Requisitos principales * 4+ years of Backend Software Engineer experience * Strong JVM experience, ideally Kotlin and ecosystem * Knowledge of Docker and Kubernetes * Experience or interest in IaC, especially Terraform * Familiarity with GitOps and CI/CD tools (GitHub Actions) * Experience with cloud services, preferably GCP * API integration and management knowledge * Ability to work in international, collaborative teams * Strong problem-solving mindset and continuous improvement focus * English proficiency for integral collaboration * collaboration * problem-solving * continuous improvement mindset * Kotlin * JVM * Docker

📌 Java / Kotlin Backend Developer (Barcelona)
🏢 Hays
📍 Barcelona