Senior Java Backend Engineer – Data Processing Platform

Ignite innovation in data processing — transform complex data into actionable insights with cutting-edge technology! Lisbon-based opportunity with hybrid work model. As a Senior Java Backend Engineer, you will be working for our client, a leader in data-driven solutions within the tech industry. You will contribute to the design and development of a powerful Data Processing application executed in batch mode using Spark, helping organizations harness big data for strategic growth. Join a dynamic team committed to pushing the boundaries of data processing and analytics. Your main responsibilities: Develop and optimize Java backend components for large-scale data processing applications. Contribute to the conception and implementation of scalable batch processing solutions using Spark. Collaborate on solution design, ensuring adherence to best practices and performance standards. Integrate container-based deployments using Docker and Kubernetes within CI/CD pipelines. Support the migration and integration of relational databases and object storage systems. Continually enhance system performance through analysis and tuning. Engage in knowledge growth around Big Data technologies, particularly Apache Spark. Work within a multicultural environment to deliver high-quality software solutions. You're ideal for this role if you have: At least 7 years of hands-on experience in Java development (Java 8+). Strong expertise in backend architecture, API design, and solution architecture. Proven experience with SQL and relational databases (PostgreSQL, Oracle). Solid understanding of containerization with Docker and orchestration with Kubernetes. Familiarity with CI/CD tooling such as Maven, GitLab, ArgoCD, and Liquibase. Good analytical skills and a proactive approach to working in data-intensive environments. It is a strong plus if you have: Exposure to or willingness to learn Apache Spark and Big Data frameworks. Knowledge of Spark SQL, Hadoop, Flink, or related technologies. Experience with batch processing workflows and ETL pipelines. French language skills at B2 level. Language required for the role: English (Communicative level) Eligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

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