Fullstack Senior Developer (Java+React) - Hybrid Madrid

We are looking for the very Top Talent…and we would be delighted if you want to join us!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 in digital technology services and provide large-scale technology solutions to major companies.What are we looking for?We are looking for aFull Stack Software Engineerto join a cross‑functional team working in a modern Agile and Dev Ops environment.We value professionals with experience across bothfrontend and backend development. While you may have a stronger background in either frontend (React) or backend (Java/Spring Boot), we expect you to be comfortable contributing across the full stack when needed.Location:Hybrid – Madrid (3 days per week onsite, Sol area)Language:Very good command of English requiredWork within a cross‑functional team using Agile methodologies and a Dev Ops‑centric approach.Design, implement, deploy, release, and monitor applications.Participate in code reviews and pull request llaborate with stakeholders across different business areas to understand business needs.Take part in planning and feature refinement sessions.Work closely with Solution Architects to design solutions aligned with the overall architecture vision.Actively contribute to Software Engineering communities, sharing knowledge and best practices.Deliver high‑quality code aligned with development standards and guidelines.Experience in software engineering across frontend and backend environments.Knowledge ofReact and Java Spring Boottechnologies.Strong understanding ofTDD, BDD, automated testing, CI/CD, and Dev Ops principles.Pragmatic, open‑minded, and proactive attitude.Entrepreneurial mindset with willingness to contribute ideas and improvements.Eagerness to learn new technologies and support transformation initiatives.Pride in delivering high‑quality solutions and leading by example.Bachelor's or Master's degree in Computer Science or a related field, or equivalent practical experience.What can we offer?23 days of Annual Leave plus the 24th and 31st of December as discretionary daysNumerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances)Free access to several training platformsProfessional stability and career development plansOption to choose between 12 or 14 salary payments per yearWork‑life balance measures, flexibility, and summer intensive working hoursUST Club discounts and gym access benefitsIf you would like to know more, don’t hesitate to apply and we’ll get in touch to fill you in detail. We are waiting for you!At 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 and encourage applications from people with disabilities.