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# Senior Backend Developer (All Genders)

- **Company:** United Digital Group
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Software Quality, Databases, Software Design Patterns, DevOps, Distributed Systems, Scrum Methodology, Web Applications, Web Platforms, Delivery Pipeline, Spring-boot, Backend, Git, Graphql, Front End Software Development, Software Version Control
- **Published:** August 10, 2026
- **Apply:** https://www.buscojobs.com.es/senior-backend-developer-all-genders-en-barcelona-ID-366314398

## About the Role

scalability, resilience and maintainability /li liIntegration of external systems, databases and third?party services /li liEnsuring high performance, security and reliability of backend services /li liClose collaboration with frontend developers, DevOps, UX/UI design and project management in bagile environments (Scrum/Kanban) /b /li liContinuous improvement of code quality, architecture and development processes /li /ul h3What you bring along /h3 ul lib5+ years of professional experience /b as a backend developer with bJava and Spring Boot /b /li liStrong experience in designing and developing bRESTful and/or GraphQL APIs /b /li liHands?on experience with bmicroservice architectures /b and distributed systems /li liGood understanding of bsoftware architecture, clean code principles and backend design patterns /b /li liExperience with bCI/CD pipelines, version control (Git) and modern development workflows /b /li liStrong problem?solving skills, ownership mindset and team?oriented working
style /li liVery good written and spoken bGerman or English skills /b /li /ul /p #J-*****-Ljbffr

## Description

ppbDo 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 global B2B market leaders!/b /p h3What we offer /h3 ul liThe 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 **** colleagues, we offer an international perspective with offices and sister agencies in the UK, USA and Asia /li liFlexible working environment: Hybrid or in one of our beautiful offices in Mainz, Ludwigsburg or Barcelona /li liAgile organization: Self?organized teams, extensive onboarding, personal buddy and lots of support from experienced colleagues /li liWork life balance: job bike leasing, Smart'n'fit weeks, fitness and self?care offers via EGYM Wellpass /li liAnd 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 /li /ul h3What you do /h3 ul liDesign and development of scalable backend systems and services using bJava and Spring Boot /b /li liBuilding and maintaining bREST and GraphQL APIs /b for modern web applications and digital platforms /li liDesigning and implementing bmicroservice architectures /b with a focus on scalability, resilience and maintainability /li liIntegration of external systems, databases and third?party services /li liEnsuring high performance, security and reliability of backend services /li liClose collaboration with frontend developers, DevOps, UX/UI design and project management in bagile environments (Scrum/Kanban) /b /li liContinuous improvement of code quality, architecture and development processes /li /ul h3What you bring along /h3 ul lib5+ years of professional experience /b as a backend developer with bJava and Spring Boot /b /li liStrong experience in designing and developing bRESTful and/or GraphQL APIs /b /li liHands?on experience with bmicroservice architectures /b and distributed systems /li liGood understanding of bsoftware architecture, clean code principles and backend design patterns /b /li liExperience with bCI/CD pipelines, version control (Git) and modern development workflows /b /li liStrong problem?solving skills, ownership mindset and team?oriented working style /li liVery good written and spoken bGerman or English skills /b /li /ul /p #J-*****-Ljbffr


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