Experteer Overview
In this role you will contribute to the Payment u0026amp; Basket Platform, delivering value-added features and upholding Clean Code principles. You will own DevOps responsibilities for your services, make architectural decisions during cloud transition, and mentor teammates to grow the team. You will identify recurring support needs and implement automated solutions in code. You will foster an open, constructive culture and collaborate with cross-functional teams to drive robust, scalable solutions for millions of customers.

Compensaciones / Beneficios
• Develop value-adding features for customers following Clean Code practices
• Own DevOps from requirements to operation for your services
• Make architectural decisions to ensure performance, robustness, and maintainability during the on-prem to cloud transition
• Share knowledge and support teammates to foster team growth
• Analyze recurring support requests and implement automated code-based solutions
• Promote open, honest, and constructive discussion within the team

Responsabilidades
• Front-end: HTML5, CSS3, JavaScript/TypeScript, React




• Kotlin with 5+ years professional experience
• Backend: Node.js, Express, Spring Boot
• API design and integrating microservices in RESTful, fault-tolerant manner
• SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases
• Git version control
• Cloud proficiency, preferably Google Cloud
• CI/CD pipelines
• Payment gateway integration (Stripe, PayPal)
• Performance optimization for web apps
• Object-oriented programming with Java; practical GitOps (Terraform, Helm, Flux) and Kubernetes
• Monitoring with Grafana, Prometheus, Kibana
• Understanding of microservices architecture, design patterns, testing strategies, security best practices
• Ability to adapt to rapidly changing technologies
• Excellent English (written and spoken)

Requisitos principales
• 10% discount on MediaMarkt website
• Flexible Pay program
• Adaptable working hours / home office
• Two office locations in Barcelona area
• Training budget
• Language classes (English, Spanish, German)

📌 Experienced Backend Engineer - Payment & Basket (m/f/d) (Barcelona)
🏢 Mediamarktsaturn
📍 Barcelona