Experteer Overview
Join the Payment u0026amp; Basket Platform team to strengthen core stack and developer experience. You will help design high-performance, maintainable services while guiding cloud transition from on-premise. Collaborate across cross-functional teams to implement automated solutions for recurring support, foster a healthy technical culture, and contribute to scalable, secure payment and data-driven features. This role offers impact on mission-critical commerce platforms and opportunities to shape the architecture and DevOps practices.

Compensaciones / Ventajas
• Develop value-adding features for customers on the core stack
• Apply Clean Code principles and DevOps ownership for services from requirements to operation
• Make architectural decisions to ensure performance, robustness, and cloud migration readiness
• Share knowledge and mentor team members to foster growth
• Analyze recurring support requests and implement automated code-based solutions
• Promote open, constructive team discussions and continuous improvement

Responsabilidades




• 5+ years of professional Kotlin experience
• Strong backend knowledge with Node.js/Express or Spring Boot
• Experience in API design and integrating microservices in RESTful, fault-tolerant ways
• Experience with SQL (PostgreSQL/MySQL) and NoSQL (MongoDB) databases
• Git proficiency
• Cloud platform experience, preferably Google Cloud
• CI/CD pipelines experience
• Understanding of payment gateways (Stripe, PayPal)
• Knowledge of microservices architecture and testing strategies
• Familiarity with security best practices for web apps
• Ability to adapt to rapid technology changes
• Excellent English communication skills

Requisitos principales
• Young environment with room to contribute
• 10% discount on MediaMarkt website
• Flexible Pay program (health insurance, restaurant vouchers)
• Flexible working hours and home office options
• Office choices in Barcelona (HQ or Pier01)
• Training budget and language classes

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