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. 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) champion security, performance, and maintainability by design Lead evaluation and adoption of automation tooling and workflow platforms across the team 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 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 ~ Passion for productivity tooling, automation, and emerging tech trends 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 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 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 integral deployment plan for the entire group. (*) Research shows that women and people from underrepresented groups are less likely to apply if they don’t meet all the criteria.

Ticket

Restaurant, Private Health Insurance) Flexible working time and possibility to combine home office / presential working. Intensive workday every Friday and during summer And the second office is located at Pier01, in Barceloneta, right in the center of Barcelona. Free coffee and free fruit twice a week There is a training budget so you can continue developing the skills you need most to keep growing professionally and personally!

English, Spanish, and German It’s a day for you to enjoy without thinking about work Department: HQ – IT Entrylevel: Type of Employement: Full Time Persona: Job Requisition Tech Employee

📌 Business Applications & Process Automation Developer (M/F/D) (Cataluña)
🏢 MediaMarkt España
📍 Cataluña