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Freelance Microsoft data engineer/data analyst in Barcelona (hybrid, 2 remote days/week) for a global insurance and financial services group. Day to day: building data models, Dataflows and Databricks SQL pipelines, Power BI reporting, and data governance with Unity Catalog. €370/day on a freelance contract.
Data Engineer developing, maintaining and optimizing Big Data solutions on AWS, building ETL/ELT pipelines with PySpark, real-time processing with Spark Streaming and Kafka, SQL transformations and Iceberg/Delta Lake tables. Fully remote role from anywhere in Spain on a long-term project.
A strategic leadership role as Head of DevOps & QA for a global technology organisation's newly launching Barcelona engineering hub. Day to day the person leads DevOps and QA strategy across teams, driving CI/CD, test automation, platform engineering, and cloud adoption while building and mentoring high-performing teams.
Architect role at NTT DATA's Digital Architecture division designing an AI-powered SDLC: evolving CI/CD platforms, implementing 'Agentic DevOps' use cases (code review, testing, pipeline upkeep, incident analysis), and integrating AI agents with repos, cloud and observability tooling. Core stack: GitHub Actions/GitLab CI/Jenkins/Azure DevOps, Terraform, Docker, Kubernetes/OpenShift, AWS/Azure, plu
Consultancy Vortech is hiring a Senior Backend Engineer to work on an invoicing/billing project for an international software client, hybrid from Barcelona (2 onsite days at Gran Via2). The role is backend-heavy: building REST APIs, microservices and distributed systems with C#/.NET 8/9, Docker, Kubernetes, SQL and RabbitMQ.
Staffing firm Zemsania is hiring Node.js backend engineers (junior to senior) for an insurance-sector client in Barcelona, building high-availability REST APIs and scalable AWS (Lambda, DynamoDB) solutions in international Agile teams. Hybrid role: 2 onsite days/week in Barcelona, with occasional company-paid trips to Paris.
Lead a team of 5 backend engineers at Macadam, the app that rewards people for walking (15M+ users), owning backend technical quality, delivery processes, and team leadership in a NestJS/TypeScript/PostgreSQL/GCP stack. Based onsite in Barcelona with a hybrid culture.
Frontend developer role at Profile Software Services focused on Liferay: you'd join a stable project building with Liferay Objects, Client Extensions, React and Freemarker. Fully remote position with an indefinite contract, flexible hours and extra benefits.
Leads employer partnerships and strategic initiatives to create career development programs for students at a global university, coordinating cross-functional teams and corporate stakeholders.
Design and migrate enterprise Cisco networks to modern SD-Access architecture, troubleshoot onsite, and align infrastructure with corporate standards.
A Data Engineer / Analytics Engineer builds and maintains the client's data platform, developing data models and transformation pipelines with DBT as the ETL/ELT tool and heavy SQL, including staging/marts layers, testing, documentation, and query optimization, on-site in Sant Cugat del Vallès.
Data engineer at consultancy Aubay Spain to support, maintain and evolve a large DataHub platform: building scalable Scala/Spark/Hadoop pipelines, ensuring data quality, and driving a Hadoop-to-cloud migration (Kubernetes, COS, Spark/Airflow as a Service). Hybrid role (50% remote) based at the Madrid Río offices.
Krell Consulting is hiring a full-stack analyst-programmer with 3+ years of web development experience to build applications end-to-end: Java/Spring Boot backend, Angular frontend, REST API design, PostgreSQL data modeling, and GitLab CI/CD with production support. Remote from Spain, salary up to 29K EUR, English C1 required.
Senior full stack engineer building VOICEB.ai's autonomous AI voice-agent platform: backend services, APIs, integrations (Salesforce, HubSpot, Twilio, SIP/WebRTC) and internal tooling. Remote within Spain, owning features end to end on a small team with the CTO, using a modern JS/TS stack (React/Node) on AWS/GCP.
Designs and builds complex batch and streaming data pipelines (Python, SQL, Spark) for a global data platform on AWS and Databricks, working with Lakehouse architectures (Delta Lake/Iceberg/Hudi), CDC/upsert strategies, and Airflow orchestration. Hybrid role in Madrid for a data engineer with 4+ years of experience.
Senior full-stack engineer at engineering-services firm FERCHAU Spain, joining a long-term international project: developing and maintaining distributed applications using .NET/.NET Core microservices, REST APIs, an Angular front-end, Kafka-style event-driven architecture and NoSQL databases, applying SSDLC and software security practices.
Senior Data Engineer for an international client project building a global data platform on AWS and Databricks: designing batch and streaming pipelines with Python, SQL and Spark, implementing Lakehouse architectures (Delta Lake, Iceberg, Hudi), CDC/upsert strategies and Airflow orchestration. Hybrid role in Madrid with 3 days remote.
Fully remote SIEM & Security Data Engineer at Capitole Consulting, joining an international cybersecurity project. Day to day: integrating and normalizing security logs into SIEM platforms, building parsers, defining detection use cases, and automating pipelines with Python/Bash, cloud (AWS/Azure/GCP), Kubernetes and IaC tools.
Senior full stack developer for a long-term, 100% remote tech project: building and maintaining Angular web apps (including real-time data features) and integrating them with Java/Spring Boot services, REST APIs and microservices, with some UX/UI involvement. Requires 8+ years of Angular; Docker, Kubernetes and data-viz skills are a plus.
Hybrid (50% office/50% remote) full stack role in Madrid building Java and Angular applications on modern microservices and event-driven architectures. Day to day: backend services in Java (JDK 8, valued JDK 17), Angular 16–20 frontend, Kafka/RabbitMQ/ActiveMQ messaging, PostgreSQL/Oracle, Docker, and automated testing in Scrum teams.
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