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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Developer - Java (Hybrid Madrid) - Cequelinos - **Company:** UST España - **Location:** Arbo, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Frameworks, Databases, Database Development, Software Debugging, Digital Technology, Distributed Systems, Eclipse (Software), IBM WebSphere MQ, Internetworking, RabbitMQ, Software Construction, Software Engineering, SQL Databases, Systems Integration, Test Data, Web Services, Backend, Integration Tests, Asynchronous Programming, Service Stack - **Published:** August 19, 2026 - **Apply:** https://www.buscojobs.com.es/backend-developer-java-hybrid-madrid-cequelinos-en-arbo-ID-367829540 ## About the Role Strong knowledge of theJava technology stack, software engineering best practices, and the full software development lifecycle. Good understanding ofRESTful web service integration. Experience with Eclipse IDE for development, debugging, and application troubleshooting. Experience withOracle Database and SQL development. Experience withKafkais preferred, while exposure to platforms such as IBM MQ (WebSphere MQ), RabbitMQ, or similar alternatives will also be considered. Strong understanding of asynchronous communication patterns, message-driven architectures, and distributed system integration. Experience in designing, creating, and executing: Functional testing Integration testing Acceptance testing Mock-up testing Ability to independently define test scenarios, create test data, build mock environments, and thoroughly test their own developments. As there will initially be no dedicated QA team, developers will be responsible for ensuring the quality, stability, and validation of their own applications before release. Nice to have: Experience with Dynamic Application Framework (DAF). Experience in Business Rule Management, including: Modelling Management Implementation Certifications or training in Visual Rules or Actico Rules. Experience with Actico Platform integration, particularly in Workplace-focused environments. Personal Attributes Strong communication and collaboration skills with a teamwork-oriented mindset. ## Description ? UST is looking for the very Top Talent...and we would be delighted if you were to join our family!More in detail, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over ****** employees all over the world and a presence in more than 35 countries.We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.? What are we looking for?We are looking for aMid/Senior Java Backend Developerto contribute in a project with one of our global customers in wealth management.We are building a very strong team comprised of high caliber professionals that will work closely with the client's IT and Business stakeholders to deliver impactful programs.You will have the opportunity to work on challenging projects with talented colleagues in an international environment while developing your domain knowledge working for a top company.Work model is hybrid in Madrid (3 days at the office, 2 WFH), feel free to apply if you are also open for relocation!Note: We will provide training on the Actico Platform?What do we expect from you?Strong knowledge of theJava technology stack, software engineering best practices, and the full software development lifecycle.Good understanding ofRESTful web service integration.Experience with Eclipse IDE for development, debugging, and application troubleshooting.Experience withOracle Database and SQL development.Experience withKafkais preferred, while exposure to platforms such as IBM MQ (WebSphere MQ), RabbitMQ, or similar alternatives will also be considered.Strong understanding of asynchronous communication patterns, message-driven architectures, and distributed system integration.Experience in designing, creating, and executing: Functional testing Integration testing Acceptance testing Mock-up testing Ability to independently define test scenarios, create test data, build mock environments, and thoroughly test their own developments.As there will initially be no dedicated QA team, developers will be responsible for ensuring the quality, stability, and validation of their own applications before release.Nice to have:Experience with Dynamic Application Framework (DAF).Experience in Business Rule Management, including: Modelling Management Implementation Certifications or training in Visual Rules or Actico Rules.Experience with Actico Platform integration, particularly in Workplace-focused environments.Personal Attributes Strong communication and collaboration skills with a teamwork-oriented mindset.?? Work location: Madrid? Work mode: Hybrid (3 days at the office, 2 WFH)? Languages:* English C1?What can we offer??? 23 days of Annual Leave plus the 24th and 31st of December as discretionary days!?? Numerous benefits (Heath Care Plan, Internet Connectivity, Life and Accident Insurances).? `Retribución Flexible ? Program: (Meals, Kinder Garden, Transport, online English lessons, Heath Care Plan...)? Free access to several training platforms? Professional stability and career plans? UST also, compensates referrals from which you could benefit when you refer professionals.? The option to pick between 12 or 14 payments along the year.? Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime...)? UST Club Platform discounts and gym Access discounts? If you would like to know more, do not hesitate to apply and we'll get in touch to fill you in details.UST is waiting for you!In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality.We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate. ## Related Videos - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Beyond Kafka & RabbitMQ: Why NATS is the Future of Microservices Messaging](https://www.wearedevelopers.com/videos/1646-beyond-kafka-rabbitmq-why-nats-is-the-future-of-microservices-messaging) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Job Boards for Remote Work for Developers](https://www.wearedevelopers.com/magazine/290-best-job-boards-for-remote-work-for-developers)