Experteer Overview Join the Payment u0026amp; Basket Platform team tostrengthen 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 / Incentivos
- 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 improvementResponsabilidades




- 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 skillsRequisitos 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 (Barcelona)
🏢 Mediamarktsaturn
📍 Barcelona