Overview

In this role you will design, build, and maintain scalable Kotlin backend services that power personalized customer experiences within a general 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 global collaboration

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

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