At adesso Spain, we're building a team for an international project in the You'll work remotely from Madrid or Barcelona, collaborating with the client's international teams and adesso colleagues , Together, you'll build and evolve the backend systems that support digital mobility services, with a focus on reliable distributed architectures, data consistency, and high-quality software. You'll design and develop Java-based backend services, helping the team solve complex challenges around transactions, event processing, concurrency, and data integrity. You'll take part in technical decisions, explain the trade-offs behind your solutions, and work closely with Product Owners, QA, and other engineering teams. Design, build, and maintain backend services using Java and Spring. Develop and evolve microservices and distributed systems for digital mobility services. Work with transactional processes in Spring, understanding transaction boundaries and their implications. Build reliable integrations and event-driven flows using Kafka or an equivalent messaging platform. Address concurrency challenges, race conditions, locking, and data integrity. Work with relational databases, including query performance, indexes, and troubleshooting. Create and maintain automated tests, collaborating closely with QA. Strong experience developing backend applications with Java and Spring Framework (+6 years). Practical understanding of transactions, including their limits and behaviour in Spring applications. Knowledge of Kafka or an equivalent messaging platform, including partitions, event ordering, consumers, and failure handling. Ability to reason about concurrency, race conditions, locking, and data integrity. Experience with relational databases, indexes, and performance analysis. Experience creating and maintaining automated tests,



and collaborating with QA teams. Clear communication skills and confidence working with technical and non-technical stakeholders in English. Data migrations or system integrations with consistency requirements. Kubernetes, CI/CD, monitoring, and production troubleshooting. Practical use of AI coding assistants, including spec-driven development, test generation, or agents configured with project rules. Competitive salary and a comprehensive benefits package, including private health insurance. Agile and lean organization with optimized work processes. Participation in international, high-impact projects. A hybrid work model for greater flexibility. A structured individual development plan covering both soft and technical training programs, certifications, and language learning. If you enjoy tackling complex backend challenges, building reliable distributed systems, and working with international teams, we'd love to hear from you. In compliance with the current regulations on the Protection of Personal Data, you are informed and, if you send us your CCVV, send us communications with your data or contact us with personal information, you consent to the processing of your data until you communicate otherwise by ADESSO SPAIN CONSULTORÍA Y SOLUCIONES TECNOLÓGICAS S.
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The legitimate basis of the treatment is the consent of the user and the pre-contractual relationship between the parties. You may exercise your rights of access, rectification, deletion, opposition, limitation of processing, data portability and not to be subject to automated individualized decisions (including profiling), by sending a request with subject "Data Protection", to the address: Avda. If you consider that your rights have been violated, you can file a complaint with our Data Protection Officer: U. or with the Spanish Data Protection Agency (). #

📌 Remote Home Based Senior Software Engineer (España)
🏢 Adesso Spain
📍 España