Senior Back End Developer - Java

buscojobs España; Zaragoza; A distancia; EUR 45.000 - 65.000; Jornada completa

Descripción de la vacante

A leading IT service company seeks a Java Backend Engineer with extensive experience in Spring Framework and event-driven architectures. The role involves implementing high-quality Java backends, working in a fully remote environment, and participating in an international team. The company values innovation and offers perks like private medical insurance and continuous training.

Servicios

Private medical insurance

Day off on your birthday

Gifts for special occasions

Free week-long accommodation annually

Continuous training

Formación

• Minimum of 5 years experience as a Java Backend Engineer.
• Experience with event-driven architectures (Kafka or RabbitMQ).
• Skills in test automation (unit, integration, end-to-end testing).

Responsabilidades

• Implementation of Spring Boot-based Java backends using clean code principles.
• Execution of DevOps-related tasks in CI / CD and Infrastructure as Code.
• Coordination and creation of user stories.

Conocimientos

Java

Spring Framework

Kafka

DevOps

Agile

Test Automation

Herramientas

Kubernetes

PostgreSQL

Keycloak

Apache Camel

Gatling

Descripción del empleo

At Principal33, we strive to make happiness at work a reality. Because it's not just about the money, it's also about the work environment and appreciation. It's about creating the best team setup you can imagine and getting involved in the things you're passionate about. And you can be a part of it, because it's fun to get things done!

We want our employees to innovate, and we allow them to do what they are truly passionate about. Based on this conviction, Principal33 aligns its strategy around its vision: to become a leading IT service company and promote a better work-life balance. With currently over 200 employees from different countries, we are actively shaping the future of work.

About the Job: Tasks

• Implementation of Spring Boot-based Java backends using clean code principles with high-quality standards
• Software development within the GrASP / MCCS platform environment
• Platform enabler functionalities for data exchange and conversion
• Implementation of event-driven distributed architectures (Kafka)
• Use of cloud-native solution approaches
• Working with established software patterns
• Working with container technologies in Kubernetes environments
• Independent problem analysis and debugging
• Handling of common database systems
• Execution of DevOps-related tasks in CI / CD and Infrastructure as Code (IaC)
• Working with agile practices
• Developing a fundamental understanding of business requirements
• Coordination and creation of user stories
• Participation in project-specific technical meetings, as required for task delivery
• Implementation and documentation of iterative software deliveries
• Working with Keycloak as authentication technology (OAuth)

Necessary Competencies

• Minimum of 5 years experience as a Java Backend Engineer
• Minimum of 4 years experience working with the Spring Framework (Boot, Data, JPA, Security)
• Minimum of 4 years experience developing rule-based routing and conversion systems for data using Apache Camel
• Minimum of 3 years experience implementing event-driven architectures (Kafka or RabbitMQ)
• Minimum of 3 years experience using Protobuf for defining data interfaces
• Minimum of 2 years experience working with relational data models and databases (particularly PostgreSQL), as well as object storage solutions (S3, CEPH, or similar)
• Minimum of 2 years experience developing containerized applications for Kubernetes, preferably AKS and/or Rancher
• Experience with the network proxy framework Kroxylicious
• Skills in test automation (unit, integration, end-to-end testing)
• Experience automating performance testing with Gatling in conjunction with event-streaming systems
• Experience with CI / CD pipelining
• Experience working with specialized industry protocols, preferably in the energy sector (e.g., IEC104, TASE.2, or similar)
• Experience in provisioning, managing, and using Keycloak as authentication technology
• Deep understanding of microservice architectures from both developer and DevOps perspectives
• Minimum of 2 years experience implementing configurable or parameterizable software architectures in digital product development
• Experience developing software systems for critical infrastructure or industries with comparable IT security and reliability requirements

What we offer

Way of working: remote 100%

Please only apply if you have a valid European work permit.

• Private medical insurance (applicable for candidates in Spain)
• Day off on your birthday
• Gifts for special occasions
• International and multicultural environment
• A free week-long accommodation annually at our corporate apartment near Valencia, Spain (subject to availability)

Events

Summer party!

Self-Development

Continuous training to help you improve your technical skills, evolve in the tech community, and develop as a professional.

We are actively involved in the tech community. You may have the opportunity to attend and participate in local and international tech events.