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Senior Backend Engineer

Madrid💼 Full-time🗓 2026-08-03 → 2026-09-29

Core

Designing, developing, and evolving scalable, high-performance backend services for the Telco sector using modern cloud-native architectures.

Role type

Senior Backend Engineer

Builds

Scalable backend services, REST APIs, and event-driven integrations for Telco projects

Domain

Telecommunications / Cloud-native backend engineering

Deliverable

production ML models | product features

Required skills

Java (8-21), Microservices architecture, Hexagonal architecture, Reactive programming, REST API design, Apache Kafka, Docker, Kubernetes, Google Cloud, Automated testing, DevOps principles

Preferred skills

Experience with modern Java versions (17/21), Event-Driven Design, Domain-Driven Design (DDD)

Technologies

Java, Kafka, Docker, Kubernetes, Google Cloud

Responsibilities

Design and optimize backend services using Java and reactive programming; Build and improve scalable REST APIs; Integrate services via event-driven architecture with Kafka; Deploy and manage services on Google Cloud using Kubernetes and Docker; Apply development best practices, automated testing, and monitoring; Collaborate in an agile environment

Seniority

Senior, hands-on IC

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