BarcelonaSenior Backend Engineer (Java)We are:Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.With the right people and the right ideas, there’s no limit to what we can achieve.Are you a fit?Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:We are looking for a Senior Backend Engineer (Java) to design, develop, and deploy scalable applications in a modern, cloud-based environment. In this role, you will work with Java, relational databases, microservices, cloud technologies, and AI-powered agents while collaborating with cross-functional teams to deliver high-quality solutions.Key Responsibilities- Design, develop, and maintain scalable applications using Java and modern software development practices.- Develop and integrate AI-powered agents, leveraging agent-based architectures and emerging AI technologies.- Design, implement, and optimize solutions using relational databases.- Design and deploy applications in cloud-based environments.- Build and maintain microservices-based architectures using Docker and related technologies.- Collaborate with engineering teams to implement reliable and maintainable software solutions.- Participate in Continuous Integration and Continuous Deployment (CI/CD) processes and follow modern DevOps practices.- Develop and maintain applications using Microsoft .NET / C# when required.- Troubleshoot technical issues, identify root causes, and implement effective solutions.- Maintain high standards of code quality, reliability,



and performance.- Communicate technical concepts effectively with technical and non-technical stakeholders.- Contribute to continuous improvement of development processes and engineering practices.Must-have Skills- Bachelor’s Degree in Computer Science, Engineering, or a related field.- 5+ years of professional software development experience.- Extensive experience and high proficiency in Java.- Significant experience working with relational databases.- Experience designing and deploying applications in cloud-based environments.- Hands-on experience coding and developing AI agents.- Experience with Docker and microservices technologies.- Familiarity with Continuous Integration and Continuous Deployment (CI/CD) concepts.- Professional experience with Microsoft .NET / C#.- Excellent problem-solving and analytical skills.- Strong attention to detail with a quality-focused mindset.- Excellent written and verbal communication skills.- English level: Advanced / Fluent (spoken and written).Nice-to-have- AI Tooling Proficiency: Ability to leverage AI tools to improve development productivity, including coding, debugging, documentation, analysis, and automation.- Experience working with Large Language Models (LLMs).- Experience implementing Retrieval-Augmented Generation (RAG) solutions.- Knowledge of AI agent architectures and agentic workflows.- Knowledge of the Digital Publishing business or experience working with publishing platforms and technologies.- Experience working in agile or DevOps-oriented teams.What we offer- A High-Impact Environment- Commitment to Professional Development- Flexible and Collaborative Culture- Integral Opportunities- Vibrant Community- Total RewardsSpecific benefits are determined by the employment type and location.Find out more about our culture here!

📌 Senior Backend Engineer (Barcelona)
🏢 Wizeline
📍 Barcelona