{"id":1780977,"url":"https://alion.io/job/six-full-stack-java-developer","title":"Full Stack Java Developer","company":{"id":47665,"name":"SIX","domain":"six-group.com","url":"https://alion.io/company/six","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Madrid, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":49000,"max_usd":108000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":26},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Hibernate","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"OpenShift","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"SOAP","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-02T00:00:00Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-12T02:42:56Z","board_verified":true,"closed_at":null,"days_open":10,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":10},"description":"BME - Bolsas y Mercados Españoles - drives the transformation of financial markets and belongs to SIX, the third largest exchange group in Europe.\nWhat sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us.\nFull Stack Java Developer\nMadrid|Working from home up to 40%| Reference8318\nAre you passionate about coding and ready to make an impact on one of the world's most technologically advanced, innovative, and stable stock exchanges?\nWe're looking for a skilled Full Stack Developer with strong experience in Java to bring your expertise to the Trading Web Application Development team. In this role, you'll design, build, and deliver high-quality features that power our Market products.\nWhat You Will Do\nDesign and develop high-performance, Java applications for market-facing and value-added applications to trading platforms, leveraging modern frameworks and architectural patterns.\nTranslate business requirements and user expectations into maintainable and scalable solution designs, applying best practices and industry standards.\nCollaborate effectively within agile teams including developers, testers, product owners, and business stakeholders using Scrum and SAFe methodologies.\nEnsure code quality and system reliability through peer reviews, automated testing, and continuous integration, proactively identify performance bottlenecks.\nDrive technical and continuous improvement, proposing enhancements, and contributing to the evolution of the surrounding trading platform's architecture.\nWhat You Bring\nAt least 5 years of professional experience in software engineering, with a strong focus on Java application development (Java 8+, Spring Boot, SOAP/REST web services).\nDeep expertise in database technologies, including SQL, Hibernate, and database design; experience with both relational and event driven persistence patterns.\nProven knowledge of object-oriented design and event based messaging systems (e.g., Kafka), alongside practical experience in integration patterns and optimization and knowledge of core web technologies (HTML, CSS, JS), alongside practical experience with industry-wide frameworks (preferably Angular).\nBaseline knowledge of continuous integration practices and scalable deployments with containerized applications (e.g., Kubernetes, Openshift).\nQuality-focused professional with strong problem-solving abilities, and a collaborative, resilient mindset.\nFamiliarity with the FIX protocol and/or direct experience working in financial markets, trading infrastructure, or related environments will be considered as a plus.\nA full command of English and Spanish with excellent communication skills are required.\nIf you have any questions, check out our FAQ page or call Sara Perez de la Cuestaat +34 91 709 56 80.\nFor this vacancy we only accept direct applications in English.\nDiversity is important to us. 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