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Backend engineer designing, building, and maintaining scalable Golang services and APIs on cloud platforms for DCONSTRUCT Robotics' AI & robotics platform. Day to day involves deploying data-driven applications on AWS, building CI/CD pipelines, and ensuring reliable, high-performance systems through testing and monitoring.
Senior Go engineer building scalable microservices on AWS and Kubernetes, focusing on high availability, CI/CD, and observability using PostgreSQL and Redis.
Glintt Global, a Lisbon-based IT consulting and technology services firm, is hiring a Backend Developer to design and build custom microservice-based solutions for client projects in Portugal and across Europe. The core stack is Java with Quarkus, relational and non-relational databases, and Kafka; Angular and AWS skills are a plus.
Backend engineer owning a live Java + Oracle parcel-logistics platform (PUDO) and progressively migrating it to Python + PostgreSQL, including rewriting carrier integrations, introducing automated testing, and managing own production deployments.
UST España & Latam seeks a Senior Backend Spark Developer to design and optimize data-processing solutions on the Client Contribution platform, building scalable, high-performance Big Data pipelines with a CI/CD focus. Core stack is Apache Spark, big data tooling and Agile ways of working, with strong English and advanced Spanish required.
DataOps Engineer at 24i joining the Personalization team in Madrid: building Python backend services and reliable, scalable cloud data pipelines on AWS, covering data flows, orchestration, and observability, while collaborating across teams on personalization solutions.
Senior back-end developer building Java/Spring software solutions to client requirements within an agile team (pair programming, code reviews, sprint ceremonies). Fully remote role with occasional office visits to Murcia (max 5 days per quarter); requires strong Spanish and English.
Sngular's León office seeks a Senior Java Developer to design and build scalable backend solutions using Java, Spring Boot, Hexagonal Architecture, and DDD, while integrating AI to optimize code and processes. The role involves collaborating with multidisciplinary teams, leading technical improvements, and helping define architectures for new solutions in an Agile, global environment.
Backend developer role at Sngular (Ibiza, Spain, with telework options) focused on designing and building highly scalable microservices in Go, working with SQL databases, Kafka event streaming, and integrating AI into data flows. Requires 8+ years of backend experience, strong SQL/Kafka skills, and advanced English for daily use.
Plexus Tech is hiring a Senior Java Developer to build highly scalable backend services, working 100% remotely from Spain on a permanent contract. The stack centers on Java (8+ years), Spring Boot, reactive programming, gRPC/Protobuf, Kafka, and AWS; C1 English is valued.
Backend developer (2–3 yrs) building and scaling critical APIs and external partner integrations in a Node.js/TypeScript/NestJS microservices ecosystem for a banking-digitization fintech in Madrid (hybrid). Stack includes PostgreSQL, RabbitMQ, AWS, mature CI/CD, with Claude used in the dev workflow.
MindMatch is hiring a Senior Backend Spark Developer, remote from Spain, to design, develop and optimize large-scale Big Data processing pipelines. The core stack is Spark (Scala or Python) with SQL in CI/CD/DevOps environments; 5+ years of Spark experience is required.
Develops Java backend services in a hybrid role based in Alcobendas (Madrid), working with recent Java versions, databases, and tools such as Spring, Hibernate, Maven, Git, Jenkins, Sonar, and REST/SOAP APIs, with some work-from-home options available.
Qaracter, a multinational banking consultancy, seeks a Java backend developer to design, build, and maintain Spring Boot microservices using Apache Cassandra, deploy them on OpenShift, and coordinate with React frontend teams for global banking clients. Permanent contract in Spain with remote-work options.
Backend developer working on an international project building ETL and data solutions with C#/.NET, SQL Server and SSIS at a Spanish tech company. Hybrid role in Alcobendas with a permanent contract, immediate start, and telework options; advanced English (B2) required.
UST España & Latam is hiring a Java backend developer to evolve and improve its IT Services Marketplace and Microsoft 365 platforms, working 100% remotely from Spain. The role focuses on designing, developing and integrating APIs and backend services, maintaining systems, and collaborating with client teams; Microsoft Graph experience is valued.
Sngular busca un desarrollador backend senior para diseñar y construir soluciones escalables con Go, gestionar bases de datos SQL y aplicar streaming con Kafka en un entorno internacional. Se trabaja con prácticas de CI/CD, revisión de código y se valoran arquitecturas distribuidas y despliegues en Cloud, con opción de teletrabajo.
Backend developer building a fintech microservices ecosystem with Node.js and TypeScript. Day-to-day work involves RabbitMQ, PostgreSQL, AWS and mature CI/CD pipelines, in a hybrid role (remote possible) based in Madrid, collaborating closely with the CTO and business teams.
Designs and maintains Java backend services with Spring Boot and Cassandra, integrating REST APIs and collaborating closely with frontend teams. It's a 100% remote role within Spain, serving international teams in the banking and financial sector; OpenShift, microservices, and CI/CD knowledge are valued.
Senior backend developer at a Barcelona health-tech company, building and deploying scalable services and APIs with Node.js, TypeScript and NestJS while helping migrate its infrastructure to an AWS serverless architecture (Lambda, API Gateway, RDS, DynamoDB, MySQL). Reports to the CTO on a ~6-person engineering team in a hybrid, Agile setup.
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