Senior Java Developer

Impress is #1 AI driven chain of orthodontic clinics with digital processes in Europe, and TOP 3 in the world.Born in Barcelona in **, we’ve grown to pioneer leading care, flagship clinics and state-of-the-art tech across 10 countries and more than 200 clinics, we completely disrupted the orthodontics market by cutting treatment costs in half, making it more affordable to people.We have revolutionised the invisible orthodontic sector with the best team of professionals specialised in making people smile and using the latest technology for the diagnosis, treatment, and follow-up of all cases.To do this, we develop both web and mobile products for users, as well as internal software for clinics, and together with the ML department we are changing the whole industry.Our business model, a true combination of medical expertise and digitalisation has been recognised in the top fastest-growing HealthTech companies by Forbes and we are currently listed as a LinkedIn Top 10 startup!We are making a unique IT solution for healthcare and invisible orthodontics.About the RoleWe’re looking for a Java Developer to join our System Team, responsible for the foundational backend services that handle authentication, authorization, file storage, and integration workflows.You’ll contribute to services that are critical for internal use and are also evolving into platform offerings for external B2B clients.Our systems play a key role in both internal and B2B platform offerings.If you’re passionate about clean code, love designing maintainable and observable systems, and consistently write unit-tested, well-structured code-you’ll feel right at home.What You’ll Work OnAs part of the System Team, you will design, build, and maintain core services such as:Identity Provider integrations, including AWS CognitoA fine-grained ReBAC (Relationship-Based Access Control) authorization serviceA digital signature management system that tracks analytics and supports complianceA centralized file storage microserviceCompany wide adoption for BMPN approachYou’ll also contribute to strategic platform initiatives, including:Making these services available for our B2B streamBuilding a BPMN-like orchestration engine to reduce our dependency on external CRMs and lower system TCORolling out fine-grained access control based on ReBAC to use our medical platform with othersDevelopmentSpring / Spring BootHibernateMapStruct (for object mapping)Feign (for HTTP clients)JUnit / Mockito (for testing)Apache Camel (for service integration)InfrastructureHosted on AWSSNS / SQS for asynchronous messagingGitHub for Git, CI/CDArgoCD for GitOps-based deploymentWhat We’re Looking For2-5 years of professional experience as a Java backend developerStrong knowledge of Spring Boot and Java 17+ (Java 21 preferred)Comfortable designing and maintaining clean, well-tested code, covered with metricsExperience with RESTful APIs, microservices, and async communication (SNS/SQS or similar)Familiarity with software testing principles and solid use of JUnit / MockitoExperience working with Git and CI/CD flowsAwareness of cloud-native development (Kubernetes, GitOps, cloud services)English proficiency at B2 level or higherWillingness to occasionally read and contribute to legacy Node.js servicesNice to HaveExperience with AWS Cognito or similar identity providers and understand OAuth2Familiarity with authorization models such as ReBAC, RBACBackground in BPMN engines, workflow orchestration, or platform developmentKnowledge of Apache CamelExperience in multi-tenant or B2B platform environmentsWhy Join Us?Contribute to high-impact, security-critical systems in a rapidly growing medtech companyBe part of a forward-thinking engineering culture focused on code quality and platform scalabilityHelp shape a B2B product platform used by healthcare providers and partnersWork remotely or from our sunny HQ in Barcelona, alongside a passionate and international team#J-***-Ljbffr

2-5 years of professional experience as a Java backend developer Strong knowledge of Spring Boot and Java 17+ (Java 21 preferred) Comfortable designing and maintaining clean, well-tested code, covered with metrics Experience with RESTful APIs, microservices, and async communication (SNS/SQS or similar) Familiarity with software testing principles and solid use of JUnit / Mockito Experience working with Git and CI/CD flows Awareness of cloud-native development (Kubernetes, GitOps, cloud services) English proficiency at B2 level or higher Willingness to occasionally read and contribute to legacy Node.js services Nice to Have Experience with AWS Cognito or similar identity providers and understand OAuth2 Familiarity with authorization models such as ReBAC, RBAC Background in BPMN engines, workflow orchestration, or platform development Knowledge of Apache Camel Experience in multi-tenant or B2B platform environments

Barcelona, España

Impress is #1 AI driven chain of orthodontic clinics with digital processes in Europe, and TOP 3 in the world. Born in Barcelona in **, we’ve grown to pioneer leading care, flagship clinics and state-of-the-art tech across 10 countries and more than 200 clinics, we completely disrupted the orthodontics market by cutting treatment costs in half, making it more affordable to people. We have revolutionised the invisible orthodontic sector with the best team of professionals specialised in making people smile and using the latest technology for the diagnosis, treatment, and follow-up of all cases. To do this, we develop both web and mobile products for users, as well as internal software for clinics, and together with the ML department we are changing the whole industry. Our business model, a true combination of medical expertise and digitalisation has been recognised in the top fastest-growing HealthTech companies by Forbes and we are currently listed as a LinkedIn Top 10 startup! We are making a unique IT solution for healthcare and invisible orthodontics.