Senior Java Engineer - Cloud-Native Microservices, Remote

UST España & Latam; España; Presencial; EUR 90.000 - 120.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health plan

Flexible compensation

Training platforms

Career development

Referral bonuses

Descripción de la vacante

UST España & Latam is seeking a Senior Java Developer to design, develop, and evolve mission-critical applications using Java 17/21, Spring Boot, and cloud-native architectures. The role focuses on reactive programming, gRPC, and scalable microservices in a distributed system environment.

You will contribute to testing, architecture, and documentation, collaborating across teams while adhering to best practices and modern concurrency patterns.

Formación

• 8+ years of professional experience with Java development.

Responsabilidades

• Design, develop, and maintain robust backend services using Java 17/21 and Spring Boot.
• Build scalable microservices leveraging reactive programming principles.
• Develop and maintain gRPC APIs and Protobuf schemas with backward compatibility.
• Implement concurrent and performant solutions with advanced thread-safety patterns.
• Work with Kafka-based event-driven architectures and production-scale data stores.
• Create automated tests (unit, integration, contract).
• Collaborate on architecture decisions, design reviews, and technical documentation.
• Participate in troubleshooting, root cause analysis, and postmortems.
• Contribute to CI/CD pipelines and cloud/container deployments.
• Produce design docs, proposals, and PR descriptions.

Conocimientos

Java 17/21

Spring Boot

Reactive programming

gRPC

Protobuf

Concurrency

Kafka

JUnit 5

Mockito

AssertJ

AWS

PostgreSQL/MongoDB/Redis

CI/CD

English (C1+)

Leadership / migrations

Herramientas

Kafka

Protobuf

gRPC

Redis

PostgreSQL

MongoDB

AWS

TeamCity

GitHub Actions

Descripción del empleo

UST España & Latam is seeking a Senior Java Developer to design, develop, and evolve mission-critical applications using Java 17/21, Spring Boot, and cloud-native architectures. The role focuses on reactive programming, gRPC, and scalable microservices in a distributed system environment.

You will contribute to testing, architecture, and documentation, collaborating across teams while adhering to best practices and modern concurrency patterns.