Senior Back End Developer - Java

principal33 España; Zaragoza; A distancia; EUR 40.000 - 80.000; Jornada completa

Descripción de la vacante

Join a forward-thinking company that prioritizes happiness at work and innovation. As a Java Backend Engineer, you'll be part of a dynamic team dedicated to developing high-quality software solutions. This role offers the chance to work remotely and engage in exciting projects that shape the future of IT services. Enjoy a supportive environment that values your contributions and encourages continuous learning. With perks like private medical insurance and unique experiences, this opportunity is perfect for those passionate about technology and collaboration.

Servicios

Private medical insurance

Day off on your birthday

Gifts for special occasions

International and multicultural environment

Free week-long accommodation annually

Formación

• 5+ years experience as a Java Backend Engineer.
• Strong knowledge of Spring Framework and event-driven architectures.
• Experience with CI/CD and container technologies.

Responsabilidades

• Implementing Spring Boot-based Java backends with high-quality standards.
• Developing containerized applications in Kubernetes environments.
• Handling DevOps-related tasks in CI/CD and Infrastructure as Code.

Conocimientos

Java

Spring Framework

Apache Camel

Kafka

PostgreSQL

Kubernetes

Test Automation

CI/CD

Microservice Architectures

Keycloak

Herramientas

Kubernetes

Gatling

Protobuf

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

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

Necessary Competencies

1. Minimum of 5 years experience as a Java Backend Engineer
2. Minimum of 4 years experience working with the Spring Framework (Boot, Data, JPA, Security)
3. Minimum of 4 years experience developing rule-based routing and conversion systems for data using Apache Camel
4. Minimum of 3 years experience implementing event-driven architectures (Kafka or RabbitMQ)
5. Minimum of 3 years experience using Protobuf for defining data interfaces
6. Minimum of 2 years experience working with relational data models and databases (particularly PostgreSQL), as well as object storage solutions (S3, CEPH, or similar)
7. Minimum of 2 years experience developing containerized applications for Kubernetes, preferably AKS and/or Rancher
8. Experience with the network proxy framework Kroxylicious
9. Skills in test automation (unit, integration, end-to-end testing)
10. Experience automating performance testing with Gatling in conjunction with event-streaming systems
11. Experience with CI / CD pipelining
12. Experience working with specialized industry protocols, preferably in the energy sector (e.g., IEC104, TASE.2, or similar)
13. Experience in provisioning, managing, and using Keycloak as authentication technology
14. Deep understanding of microservice architectures from both developer and DevOps perspectives
15. Minimum of 2 years experience implementing configurable or parameterizable software architectures in digital product development
16. 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.

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