Developer

Your Tasks We're looking for a Senior Developer to design, build, and operate scalable internal business applications and intelligent automation solutions serving 55,000 employees. You will drive architecture decisions, mentor teams, and partner with business stakeholders to deliver measurable productivity gains across the enterprise. Your Responsibilities Design and build modern full-stack business applications using Node.js, TypeScript, and React (or equivalent modern frameworks) Architect and implement end-to-end process automation pipelines using tools such as n8n, Make (Integromat), Azure Logic Apps, or equivalent orchestration platforms Design and develop robust REST/GraphQL APIs and microservices to integrate business systems (ERP, CRM, HR platforms, third-party services) Define reference architectures, integration patterns, and reusable component libraries; champion security, performance, and maintainability by design Lead evaluation and adoption of automation tooling and workflow platforms across the team Partner in the evolution of our internal AI platform: integrate LLMs, build reusable AI services, and deliver employee-facing AI tools Own CI/CD and DevOps workflows (GitHub Actions / Azure DevOps, Docker); automate testing and deployments Coordinate and quality-assure external vendors and nearshore development partners; plan sprints, review deliverables, and ensure on-time, on-budget delivery Collaborate with product owners and business stakeholders to translate operational needs into clear technical roadmaps and measurable outcomes Enforce engineering excellence through code reviews, automated tests (unit/integration/e2e), and monitoring/alerting Your Profile 6+ years of software engineering with a strong focus on full-stack development and business application delivery Advanced proficiency in Node.js, TypeScript, React, and modern front-end tooling Strong back-end skills: API design, microservices, relational and NoSQL databases, caching strategies Proven hands-on experience with process automation and workflow orchestration (n8n, Make, Logic Apps, or similar) - highly preferred Excellent stakeholder management, communication, and mentoring skills Passion for productivity tooling, automation, and emerging tech trends Preferred Familiarity with Power Platform (Power Apps, Power Automate, Dataverse) and/or the Microsoft 365 ecosystem as an added advantage Experience with DevOps practices and tooling: GitHub Actions or Azure DevOps CI/CD pipelines, container orchestration with Kubernetes, and Docker-based deployments (optional but a strong plus) Experience building AI-powered applications: integrating LLMs (OpenAI/Azure OpenAI), vector databases, embeddings, and RAG patterns Knowledge of identity and access management (OIDC/OAuth 2.0, SSO, zero-trust patterns) Experience with API gateways, event-driven architectures (Service Bus, Kafka), and integration middleware Observability and reliability engineering (OpenTelemetry, Prometheus, Grafana

SLOs) Background in enterprise-scale deployments and data privacy/compliance requirements About Us MediaMarktSaturn is Europe's leading consumer electronics retailer. It sees itself as a partner, daily companion and navigator for its customers in the digital world. Its over 1,000 MediaMarkt and Saturn stores are closely integrated with their online shops. MediaMarktSaturn has a total headcount of more than 60,000. MediaMarktSaturn Technology is working on making Europe's number one consumer electronics retailer the technology leader in its sector. To this end, several hundred developers, UX designers and system architects using state-of-the-art 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. Technology Hub located in Barcelona , is one of the service units of MediaMarktSaturn Technology to deliver adequate staffing and engineering skills for the agreed deliveries of the global deployment plan for the entire group. (*) Diversity and equal opportunities are important to us. Research shows that women and people from underrepresented groups are less likely to apply if they don't meet all the criteria. If you are interested in this position but your experience doesn't align perfectly with every requirement, we still encourage you to apply. Additional Benefits Young environment, where not everything is written in stone, and where you are expected to contribute and co-create the culture of the Tech Hub and international collaboration model You'll have a 10% discount on the entire MediaMarkt website, so you can treat yourself at a low