OverviewIn this role you will lead the migration of a legacy Java application to Spring Boot, modernizing the architecture for scalability and performance.

You will join a cross-functional team working on OptiFlight, an initiative aimed at improving sustainability and daily operations for aircraft.

You'll collaborate with machine learning engineers to integrate predictive models and support data-driven decision making.

You will design, build, and review high-quality Java/Spring Boot solutions while mentoring peers and upholding coding standards.

This position offers the chance to shape a large-scale, distributed system in a forward-thinking aeronautics context.

Compensaciones / BeneficiosCompetitive salary social benefits

Hybrid work office in Barcelona

3 days in office, 2 teleworking

ResponsabilidadesLead migration of legacy Java application to Spring Boot to improve scalability and maintainability

Collaborate with ML team to integrate predictive models into the system

Architect and develop high-performance Java/Spring Boot applications following best practices

Work with cross-functional teams to align solutions with business goals

Conduct code reviews and mentor junior developers





Troubleshoot complex issues ensuring availability, reliability, and security

Stay current with new technologies and improve development processes

Participate in requirements, design, and effort estimation for projects

Requisitos principales8+ years in software engineering with strong Java development experience

Proficiency in Java 8+, Spring Framework (Spring Boot, Spring MVC), Hibernate, Elasticsearch, JUnit, Gradle/Maven

Experience with microservices and RESTful APIs

Solid understanding of design patterns, SOLID principles, and clean coding

Experience with Elasticsearch indexing, querying, and performance optimization

Relational databases (PostgreSQL, MySQL, Oracle) and NoSQL (MongoDB) familiarity a plus

Docker, Kubernetes, and CI/CD pipelines

Experience with message brokers (Kafka, RabbitMQ)

Knowledge of Flyway or Liquibase is a plus

Experience migrating legacy apps and working on large-scale distributed systems

English C1

proactivity problem-solving analytical thinking

Java 8+

Spring Boot

Spring Framework

📌 Java Developer - Social You (Barcelona)
🏢 Social You
📍 Barcelona