(Experienced) Software Engineer Marketplace (m/f/d) Job Details | MediaMarktSaturn Retail Group

MediaMarktSaturn Plattform Services GmbH; Deutschland; Vor Ort; EUR 50.000 - 70.000; Vollzeit

Zusammenfassung

A leading consumer electronics firm in Germany is looking for a Backend Engineer to develop scalable services using TypeScript, Node.js, and NestJS. This role involves designing MongoDB schemas and implementing robust APIs. Ideal candidates should possess strong backend engineering skills and a collaborative mindset, with experience in CI/CD pipelines and modern infrastructure tools.

Qualifikationen

• Strong backend engineering expertise with TypeScript, Node.js, and NestJS.
• Experience with MongoDB schema design and data scalability.
• Ownership mindset with focus on maintainable solutions.

Aufgaben

• Develop and maintain scalable backend services.
• Design and optimize MongoDB schemas.
• Implement REST and GraphQL APIs.

Kenntnisse

Backend engineering expertise

TypeScript

Node.js

NestJS

MongoDB schema design

CI/CD pipelines

Kubernetes

Grafana

Prometheus

API design principles

Jobbeschreibung

• Development and maintenance of scalable backend services using NestJS, Node.js, and TypeScript
• Design and optimization of performant MongoDB schemas, including indexing strategies for large-scale datasets
• Implementation of robust REST and GraphQL APIs, background workers, and job queues with BullMQ
• Ownership of the complete software lifecycle: development, testing, monitoring, and continuous improvement
• Creation of meaningful unit, integration, and end-to-end tests with a focus on validation and reliability
• Consideration of architectural implications, edge cases, and cross-system integrations in all implementations
• Collaboration with engineering and product teams through proactive communication of progress, blockers, and trade-offs
• Contribution to architectural enhancements and system scalability
• Knowledge sharing and mentorship through code reviews and guidance

Your Profile

• Strong backend engineering expertise with a focus on TypeScript, Node.js, and NestJS
• Practical experience in MongoDB schema design and data scalability
• Demonstrated ownership mindset, with a focus on clean, maintainable solutions and critical thinking
• Emphasis on testing practices, technical documentation, and team-wide communication
• Familiarity with modern infrastructure, including CI/CD pipelines, Kubernetes, Grafana, and Prometheus
• Solid understanding of API design principles and experience with event-driven systems (e.g., Google Pub/Sub)
• Bonus: Frontend development experience with React and Next.js

About Us

MediaMarktSaturn Technology is working to make Europe’s number-one consumer electronics retailer the technology leader in its industry. To this end, several hundred developers, UX designers and system architects using state-of-the‑class technology work hand in hand with business owners in agile teams to develop customer‑focused technology solutions for more than 6 million customers every day in 11 countries.