AAt SQUAD Technology Solutions, an IT outsourcing company, we are building a small, agile team with a strong commitment to doing things right from the very beginning.
Descubra exactamente qué habilidades, experiencia y cualificaciones necesitará para tener éxito en este puesto antes de enviar su solicitud a continuación.
We are currently working with one of our clients to hire a Java Senior Developer with reactive programming for a project in the banking sector.
What are we looking for?
8+ years of Java development experience, including Java 17/21, modern language features, concurrency, and high-performance backend systems.
Strong expertise with Spring Boot, Project Reactor, RxJava, and CompletableFuture to build scalable and reactive microservices.
Hands-on experience with gRPC & Protobuf, including streaming RPCs, interceptors, deadlines, and API/schema evolution.
Solid background in Kafka, Redis, PostgreSQL,



and MongoDB, delivering event-driven and data-intensive applications.
Strong cloud experience on AWS (S3, IAM, Managed Kafka, container runtimes) and modern distributed architectures.
Expertise in Docker, multi-architecture container images (amd64/arm64), CI/CD, and cloud-native deployment practices.
Experience leading large-scale refactoring or migration projects in multi-module codebases, with strong communication skills and C1 English;
Python knowledge is a plus.
What are we offering?
Freelance contract with immediate onboarding.
Stable and full time project with an international client. xhfqzwm
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Hay opciones de teletrabajo/trabajo desde casa disponibles para este puesto.

📌 Senior Java Developer (Rxjava) | Freelance (Remote, 30-33€/H)
🏢 SQUAD Technology Solutions
📍 Madrid