Senior Java Dev - Backend Engineer (70 % coding/30 % architecture)HYBRID/2 days minimum at the office in Brussels550 - 600 EUR RateEnglish, Dutch or French RequiredASAP Start*Urgent Long term Contract - Role hiring now!*This is a *Belgium Hybrid* based role with an excellent immediate start within a Global Consulting company working on * Defining and evolving service interfaces and integrating external components *What you'll doBuild the Back End for various user-facing featuresDefine and evolve service interfaces and integrate external componentsModel and remodel data: design an effective data model for our application, and then evolve that data model as requirements shift over timeProfile and optimise application & database performance (caching, query tuning, etc.)Scale the app/database via architectural changesImprove observability, monitoring, and alerting so that we can better respond to operational incidentsWork closely with product engineers, design and functional analyst to implement fast new feature ideas/conceptsCore Tech Stack:Mandatory :JAVA 17+, Spring Boot or QuarkusExperience with SQL database and DB to SQL migrationsKibanaApache KafkaMaven, JUnit/Mockito, integration & E2E testingDocker, OpenShift, GitLab CI/CDNice to have:Experience with Neo4J or other graph DBCode Architecture & Design Patterns:Design Patterns : Familiarity with patterns to create robust and scalable code structures.Refactoring Techniques : Ability to improve existing code by simplifying and optimizing it without changing functionality.API design: RESTful principlesPerformance & Security:Optimization techniques : Able to optimize code for load handling, memory, and response time.Security Best Practices : familiar with vulnerabilities like SQL injection and XSS, and experienced with Snyk for security checks.Languages:EnglishFrench Or DutchEducation:Bachelor's degree (or higher) in Computer Science or related field is neededPlease send your CV or call Yasin/Navaid to discuss further.We are an equal opportunities employment agency and welcome applications from all suitably qualified persons regardless of race, sex, disability, religion/belief, sexual orientation, or age.We champion differences in technology recruitment and work with clients who actively wish to diversify their talent force - ALL applicants are welcome to apply.