Overview
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As a Fullstack Engineer in the Platform team, you will own shared infrastructure, shape the backend orchestration service, and help multiple teams move faster with quality and reliability. You’ll bridge product teams as a platform proxy, coordinating cross-team decisions and ensuring scalable, well-documented services. You will build and maintain front- and back-end components for shared projects like the back office, and manage cloud infrastructure on GCP. This role blends hands-on engineering with mentoring and a strong focus on observability and CI/CD discipline.
Compensaciones / Beneficios
10% discount on MediaMarkt website
Flexible Pay program
Versátil working hours and hybrid work option
Training budget for skill development
Language classes (English, Spanish, German)
Office options in Barcelona with cost advantages
Responsabilidades
Act as a platform proxy for product teams, understanding needs and unblocking shared concerns
Contribute to the backend orchestration service, improving design and reliability as usage grows
Build and maintain shared projects (e.g., back office) across frontend and backend layers




Manage and improve GCP-based cloud infrastructure (provisioning, configuring, maintaining environments)
Improve and extend CI/CD pipelines (GitHub Actions) for fast, stable delivery
Strengthen observability with Grafana dashboards, monitoring and alerting
Write clean, well-tested code and foster a culture of quality and reliability
Mentor engineers across product teams on platform practices, infrastructure, and architecture
Requisitos principales
Solid fullstack experience with TypeScript and Node. xqbhyrx js
Frontend capability in React (Rom React Native a plus)
Strong GraphQL knowledge; Apollo is a plus
Hands-on MongoDB experience (schema, indexing, query optimization)
GCP services and Terraform for IAC
Experience with CI/CD tooling, especially GitHub Actions
Familiarity with event-driven architectures (Google Pub/Sub or similar)
Experience with Grafana or equivalent observability tools
Testing discipline across unit, integration, and end-to-end tests
Strong communication and collaborative mindset
strong communication
collaborative mindset
ability to work across team boundaries
TypeScript
Node.js
React

📌 Experienced Fullstack Engineer - Store Apps Platform (m/f/d) (Barcelona)
🏢 Mediamarktsaturn
📍 Barcelona