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Back-end Developer & Analyst

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Eviden

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Location:
Spain , Barcelona

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

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Job Description:

Bull is looking for a motivated and proactive Back‑end Developer & Analyst to join our international R&D team. In this role, you will take ownership of the implementation, integration, and testing of backend and security solutions, contributing to next‑generation cloud and HPC platforms. You will work in a dynamic, innovative environment, collaborating closely with technical and business stakeholders.

Job Responsibility:

  • Design, develop, test, and maintain backend services using Kotlin / Java, microservices, and REST APIs
  • Participate in the full software development lifecycle within an Agile environment (Scrum)
  • Contribute to analysis and definition of technical requirements, user stories, and solution design
  • Implement and integrate security and identity-related solutions, including Proofs of Concept (PoCs)
  • Work with CI/CD pipelines to support automated testing and deployment (Docker-based environments)
  • Collaborate with cross-functional teams, including architects, DevOps, and product stakeholders
  • Ensure clean, maintainable, and well-documented code following best practices
  • Support troubleshooting, performance optimization, and continuous improvement of backend systems

Requirements:

  • Bachelor's degree in Computer Science, Software Engineering, or a related technical field
  • 2+ years of professional experience in backend development using Kotlin and/or Java
  • Strong experience with microservices architecture, REST APIs, and Swagger/OpenAPI
  • Experience working in Agile/Scrum development environments
  • Solid experience with CI/CD tools and automated pipelines, including Docker
  • Good understanding of backend system integration and testing
  • Fluent English (written and spoken)

Nice to have:

  • Ability to quickly adapt to new frameworks, technologies, or programming languages
  • Experience with Kubernetes, including cluster lifecycle management, networking, security, and storage
  • Experience with Spring / Spring Boot and cryptographic libraries
  • Knowledge of Linux system administration and troubleshooting distributed systems
  • Experience with digital identity technologies, including Self-Sovereign Identity, OIDC, OAuth 2.0, FIDO, and PKI certificates
  • Exposure to research and innovation projects (e.g. Horizon Europe / H2020 / FP7)
  • Proactive, autonomous, and solution-oriented mindset
  • Strong analytical and problem-solving skills
  • Team-oriented attitude with good communication skills
  • Willingness to learn and grow in an innovative R&D environment
What we offer:
  • Flexible work schedule half-day Fridays and an intensive summer workday supporting work life balance
  • Learning and Growth Opportunities to work with advanced technologies in an innovative and supportive R&D environment

Additional Information:

Job Posted:
May 04, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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