Leading company in the electronic retail sector with a presence in more than 11 European countries. It operates both physical stores and digital platforms, offering customer-centric technological solutions through a large international team of developers, UX designers, and system architects. Its technology hub in Barcelona drives innovation and technical excellence for millions of users.

We are looking for a Backend Developer specialized in Kotlin to join the global loyalty team, developing services that directly impact the experience of millions of customers. The position is based in the Barcelona Tech Hub, with a hybrid model and flexible remote options.

Responsibilities

• Design, implement, and maintain scalable backend services in Kotlin.

• Manage infrastructure using Terraform, Kubernetes, GitOps (Flux), and Docker.

• Develop CI/CD pipelines using GitHub Actions.

• Work with Google Cloud technologies (BigQuery, GKE, Pub/Sub, MongoDB Atlas).

• Ensure quality using testing frameworks such as Kotest and Testcontainers.

• Contribute to continuous improvement of code and agile processes (Scrum/Kanban).

• Participate in on-call rotations to ensure service availability.

Requirements

Must-have:

• At least 3 years of experience as a backend developer in the JVM ecosystem, especially Kotlin.

• Knowledge of containers and orchestration (Docker, Kubernetes).

• Experience in API integration and management.

• Ability to collaborate effectively in remote environments.

• Strong communication skills and a proactive mindset.

Nice to have:

• Experience with Terraform and Infrastructure as Code.

• Knowledge of GitOps practices and pipelines using GitHub Actions.

• Familiarity with Google Cloud Platform: BigQuery, GKE, and Pub/Sub.

• Passion for innovation and continuous learning.

Why join the company

You will be part of a dynamic organization that combines international reach with the agility of a young and innovative environment. You will enjoy benefits such as flexible working arrangements, reduced working hours on Fridays and during summer, continuous training, language classes, and exclusive discounts. This role offers the opportunity to work with a cutting-edge technology stack and have a direct impact on the experience of millions of users.

Key benefits:

• Flexible working hours and hybrid model

• Day off on your birthday

• Language classes

• Offices in two locations in Barcelona

• 10% discount on products

• Annual training budget

• Optional private health insurance and flexible compensation