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 integral collaboration
collaboration
problem-solving
continuous improvement mindset
Kotlin
JVM
Docker

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