Overview

In this role you will design, build and operate backend services for a Europe-wide loyalty platform, enabling scalable, reliable customer experiences. You’ll collaborate with cross-functional teams to deliver cloud-native solutions that support growth and improve loyalty interactions. You will work with cutting-edge tech and DevOps practices to ensure high availability and rapid delivery. This is a hands-on, impact-driven position in a collaborative, remote-friendly environment with a strong focus on continuous learning and architecture decisions.

Compensaciones / Beneficios

- 10% discount on MediaMarkt website
- Adaptable Pay (MediaFlex program)
- Flexible working time with home office option
- Offices in Barcelona area options
- training budget for skill development
- language classes (English, Spanish, German)

Responsabilidades
- Design, implement, maintain and operate backend services to support scalable applications for Customer & Marketing using Kotlin
- Build and manage scalable systems with Terraform, Kubernetes, Flux (GitOps) and Docker
- Develop CI/CD pipelines with GitHub Actions for efficient deployments
- Utilize Google Cloud products (BigQuery, GKE,



Pub/Sub) and MongoDB Atlas to optimize cloud apps
- Apply test frameworks like Kotest and Testcontainers to ensure high-quality code
- Contribute to agile processes (Scrum/Kanban) and continuously improve development practices
- Participate in regular on-call rotations to ensure high availability

Requisitos principales
- 5+ years of professional software development experience
- Kotlin (JVM) backend development
- Strong server-side backend expertise
- Experience with event-driven architectures and GCP Pub/Sub
- NoSQL databases knowledge, especially MongoDB
- Containerization/orchestration (Docker, Kubernetes) with hands-on experience
- IaC experience with Terraform (a plus)
- Ktor as web framework (a plus)
- Arrow functional programming library (a plus)
- Kotlin coroutines familiarity (a plus)

- collaboration and pair programming
- initiative in code improvements and architecture decisions
- strong problem-solving and analytical thinking
- Kotlin (JVM)
- Google Cloud Platform (BigQuery, GKE, Pub/Sub)
- MongoDB Atlas

📌 Experienced Software Engineer (Kotlin) - Global Loyalty (m/f/d)
🏢 Mediamarktsaturn
📍 Barcelona