Do you want to design scalable backend systems and build powerful APIs that drive modern digital platforms? Then you’re the perfect fit for our team – working with German corporate clients and general B2B market leaders!

A continuación, encontrará un desglose completo de todo lo que se requiere de los posibles candidatos, así como la forma de presentar su candidatura. ¡Mucha suerte!
What we offer

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- The chance to become part of a large, international agency group: approx. 350 great employees in Germany, a modern, customer‑centric business model and a true New Work environment. As part of MSQ with a further 1500 colleagues, we offer an international perspective with offices and sister agencies in the UK, USA and Asia

- Flexible working environment: Hybrid or in one of our beautiful offices in Mainz, Ludwigsburg or Barcelona

- Agile organization: Self‑organized teams, extensive onboarding, personal buddy and lots of support from experienced colleagues

- Work & life balance: job bike leasing, Smart'n'fit weeks, fitness and self‑care offers via EGYM Wellpass

- And of course: modern hardware, well‑equipped tool landscape, company pension scheme, further training budget, in‑house training, company events, drinks flat rate and good coffee

What you do

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- Design and development of scalable backend systems and services using Java and Spring Boot

- Building and maintaining REST and GraphQL APIs for modern web applications and digital platforms

- Designing and implementing microservice architectures with a focus on scalability, resilience and maintainability

- Integration of external systems, databases and third‑party services

- Ensuring high performance, security and reliability of backend services

- Close collaboration with frontend developers, DevOps, UX/UI design and project management in agile environments (Scrum/Kanban)

- Continuous improvement of code quality, architecture and development processes

What you bring along

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- 5+ years of professional xhfqzwm experience as a backend developer with Java and Spring Boot

- Strong experience in designing and developing RESTful and/or GraphQL APIs

- Hands‑on experience with microservice architectures and distributed systems

- Good understanding of software architecture, clean code principles and backend design patterns

- Experience with CI/CD pipelines, version control (Git) and modern development workflows

- Strong problem‑solving skills, ownership mindset and team‑oriented working style

- Very good written and spoken German or English skills

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📌 Senior Backend Developer (All Genders) (Barcelona)
🏢 United Digital Group
📍 Barcelona