Backend Developer

depending on the product stack. Implement and maintain unit and integration tests as part of the development lifecycle. Collaborate closely with QA engineers, frontend developers, Dev Ops, architects, and product stakeholders. Participate actively in refinement, planning, development, and delivery activities. Ensure code quality, maintainability, and consistency across the backend codebase. Support applications running in production, including troubleshooting and analysis of logs, errors, and runtime behaviour. Contribute to continuous improvement of backend development practices, tooling, and technical solutions. Proven experience in backend software development within enterprise environments. Strong hands-on experience with Java and Spring Boot or . NET Core / ASP. NET Core . Experience working with relational databases and SQL (Oracle, SQL Server, or equivalent). Familiarity with version control systems (Git). Experience with unit and integration testing. Understanding of Agile ways

of working (Scrum / Kanban). Basic understanding of CI/CD concepts and Dev Ops environments. Awareness of production and operational aspects such as logging, error handling, and monitoring. Good communication skills and fluency in English.", "employmentType": "FULL_TIME", "industry": "Back End", "jobLocation" : { "@type": "Place", "address": { "@type": "PostalAddress", "streetAddress": "n/a", "addressLocality": "Madrid", "addressRegion": "Madrid", "addressCountry": "ES", "postalCode": "n/a" } }, "salaryCurrency": "EUR", "title": "Back end developer - data", "hiringOrganization" : { "@type" : "Organization", "logo" : "https://logo.jobs-search.org/9149773.jpg", "name" : "confidential" } }

{ "@context": "http://schema.org", "@type": "JobPosting", "baseSalary" : { "@type": "MonetaryAmount", "currency": "EUR", "value": { "@type": "QuantitativeValue", "value": 0.00, "unitText": "MONTH" } }, "datePosted": "2026-05-23", "validThrough" : "2026-06-30", "description": "More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies. A Backend Developer who has a strong expertise in Java or. NET to design, develop, and maintain backend services in a distributed, service-oriented architecture. Hybrid. 3 days a week in the office + 2 days remote. Design, develop, and maintain backend services in a distributed, service-oriented architecture. Develop backend software using Java (Spring Boot) or . NET Core