Senior Backend Engineer

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 aSenior 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 usingJavaand modern software development practices.Develop and integrateAI-powered agents, leveraging agent-based architectures and emerging AI technologies.Design, implement, and optimize solutions usingrelational databases.Design and deploy applications incloud-based environments.Build and maintainmicroservices-based architecturesusing Docker and related technologies.Collaborate with engineering teams to implement reliable and maintainable software solutions.Participate inContinuous Integration and Continuous Deployment (CI/CD)processes and follow modern DevOps practices.Develop and maintain applications usingMicrosoft .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 inJava.Significant experience working withrelational databases.Experience designing and deploying applications incloud-based environments.Hands-on experiencecoding and developing AI agents.Experience withDocker and microservices technologies.Familiarity withContinuous Integration and Continuous Deployment (CI/CD)concepts.Professional experience withMicrosoft .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 withLarge Language Models (LLMs).Experience implementingRetrieval-Augmented Generation (RAG)solutions.Knowledge of AI agent architectures and agentic workflows.Knowledge of theDigital Publishing businessor 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 (Java), 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.

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!

Gusendos de los Oteros, León, España

Barcelona 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?