is a multinational company based in North America, certified as a company with over We are leaders in digital technology services, and we provide large-scale technological solutions to big companies. Java Developer microservice-based cloud environment You will play a key role in designing, developing, and supporting secure, scalable, and maintainable Java services, APIs, and integrations that connect critical business systems and internal tools. Design and implement Java services, REST APIs, integration adapters, and extension components using Java and the Spring ecosystem.

Build and optimize persistence layers using Hibernate/JPA and SQL best practices. Integrate microservices and internal tools with CRM, finance, payment, analytics, web, and mobile platforms. Create and maintain unit, integration, component, and contract tests to ensure high-quality software delivery.

Troubleshoot production incidents using logs, metrics, traces, and database analysis, providing sustainable root-cause solutions. Support CI/CD pipelines, automated quality controls, deployment processes, and cloud-native engineering practices. Ensure solutions meet performance, reliability, scalability, and security standards.

Java .

Spring Framework Spring

Boot . Hibernate/JPA , relational databases, and SQL optimization .



Strong testing experience using JUnit , Mockito , and integration/contract testing frameworks. Maven/Gradle , Understanding of secure coding principles, authentication, authorization, observability, logging, and monitoring. fluent English.

Experience in utility, customer information, billing, payment, or energy-sector platforms. SAP Utilities , Oracle Utilities , AWS , API Gateway Lambda Fargate SQS/SNS Aurora CloudWatch IAM Experience with containers, infrastructure-as-code, and cloud-native deployment patterns. Knowledge of distributed tracing, performance testing, and production support for high-volume systems.

Understanding of customer, metering, usage, tariff, billing, payment, and debt-management processes within utilities. Numerous benefits (Health Care Plan, Internet Connectivity, Life and Accident Insurances).

Retribución Adaptable Program: (Meals, Kindergarten, Transport, Online English Lessons, Health Care Plan...) Free access to several training platforms. Real Work-Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime...). Hay opciones de teletrabajo/trabajo desde casa disponibles para este puesto.

📌 Senior Java Developer (Aws) - Remote (Madrid)
🏢 UST España u0026 Latam
📍 Madrid