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# Senior Java Developer (Teletrabajo 100%)

- **Company:** Plexus Tech
- **Location:** Madrid, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon S3, Cloud Computing, Protocol Buffers, Identity and Access Management, Junit, PostgreSQL, MongoDB, Redis, Mockito, Rxjava, Service Development Studio, Spring-boot, Backend, Integration Tests, Apache Kafka
- **Published:** August 26, 2026
- **Apply:** https://www.recruit.net/job/java-developer-teletrabajo-jobs/0846DDE439C4C0AB

## About the Role

8 años de experiencia profesional con Java .
Al menos
3 años trabajando con Java 17 o Java 21
Amplia experiencia en
Spring / Spring Boot
en entornos productivos.
Experiencia en
programación reactiva
con Project Reactor o RxJava (Mono/Flux, backpressure, retry/backoff, hot/cold publishers) o sólidos conocimientos de programación asíncrona con CompletableFuture y concurrencia estructurada.
Experiencia profesional con
gRPC y Protobuf
Sólidos conocimientos de
concurrencia y multithreading : thread-safety, gestión de ejecutores, patrones lock-free y gestión del ciclo de vida de procesos/hilos.
Experiencia en
testing
con JUnit 5, Mockito y AssertJ, incluyendo pruebas de integración con dependencias reales y contract/parity testing.
Experiencia con
Kafka
(productores, consumidores y semántica de procesamiento).
Experiencia en entornos productivos con al menos una de estas tecnologías:
Redis, PostgreSQL o MongoDB .
Conocimientos de
Cloud , preferiblemente AWS: S3, IAM, Kafka gestionado y entornos de contenedores.
Nivel C1 de inglés , tanto escrito como hablado.

## Description

y las capacidades de nuestra gente, más de 5.000 profesionales desarrollando
tecnología con alma.
Buscamos incorporar un/a
Senior Java Developer
para participar en el desarrollo de servicios backend de alta escalabilidad y trabajar con tecnologías modernas dentro del ecosistema Java.


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