OverviewIn 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 / Beneficios4 remote working days per week

27 days of annual leave annual salary review career development plan permanent direct contract international and technology-driven environment

ResponsabilidadesDesign, 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 principales4+ 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 general collaboration collaboration problem-solving continuous improvement mindset

Kotlin

JVM

Docker

📌 Java / Kotlin Backend Developer - Barcelona
🏢 Hays
📍 Barcelona