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 integral 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 ResponsibilitiesDesign, 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 SkillsBachelor'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-haveAI 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 offerA High-Impact EnvironmentCommitment to Professional DevelopmentFlexible and Collaborative CultureGlobal OpportunitiesVibrant CommunityTotal RewardsSpecific benefits are determined by the employment type and location.Find out more about our culture here!

📌 Senior Backend Engineer (Castro Urdiales)
🏢 Wizeline
📍 Castro Urdiales