Wizeline

Senior Backend Engineer (Java)

Barcelona · Posted 1h ago

salary not listedseniorpermanentDept: Software Engineering
Javarelational databasesmicroservicescloudAIDockerCI/CDMicrosoft .NETC#

Job Description

Senior 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
  • Global Opportunities
  • Vibrant Community
  • Total Rewards

Specific benefits are determined by the employment type and location.

Find out more about our culture here.