We are the largest chain of ortho clinics with fully digital processes in Europe. We have revolutionised the invisible orthodontic sector with the best team of professionals specialised in making people smile and using the latest technology for 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 entire industry. Our business model, a true combination of medical expertise and digitalisation, has been recognised as one of the top fastest-growing HealthTech companies by Forbes, and we are currently listed as a LinkedIn Top 10 startup! We are creating a unique IT solution for healthcare and invisible orthodontics.
About the Role
We’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 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 On
As part of the System Team, you will design, build, and maintain core services such as :
* Identity Provider integrations, including AWS Cognito, and a fine-grained ReBAC (Relationship-Based Access Control) authorization service
* Digital signature management system that tracks analytics and supports compliance
* Centralized file storage microservice
* Company-wide adoption for BMPN approach
You’ll also contribute to strategic platform initiatives, including :
1. Making these services available for our B2B stream
2. Building a BPMN-like orchestration engine to reduce dependency on external CRMs and lower system TCO
3. Rolling out fine-grained access control based on ReBAC to enable our medical platform to be used with other systems
Tech Stack
Development :
4. Java 21, Spring / Spring Boot, Hibernate, MapStruct, Feign, JUnit / Mockito, Apache Camel
Infrastructure :
5. Kubernetes (K8s), Hosted on AWS, SNS / SQS for messaging, GitHub, CI / CD, ArgoCD
What We’re Looking For
6. 2–5 years of professional experience as a Java backend developer
7. Strong knowledge of Spring Boot and Java 17+ (Java 21 preferred)
8. Experience designing and maintaining clean, well-tested code with metrics
9. Experience with RESTful APIs, microservices, async communication (SNS / SQS or similar)
10. Familiarity with software testing principles and solid use of JUnit / Mockito
11. Experience working with CI / CD flows
12. Awareness of cloud-native development (Kubernetes, GitOps, cloud services)
13. English proficiency at B2 level or higher
14. Willingness to occasionally read and contribute to legacy Node.js services
Nice to Have
15. Experience with AWS Cognito or similar identity providers and understanding OAuth2
16. Familiarity with authorization models such as ReBAC, RBAC
17. Background in BPMN engines, workflow orchestration, or platform development
18. Knowledge of Apache Camel
19. Experience in multi-tenant B2B platform environments
Why Join Us?
20. Contribute to high-impact, security-critical systems in a rapidly growing medtech company
21. Be part of a forward-thinking engineering culture focused on code quality and platform scalability
22. Help shape a B2B product platform used by healthcare providers and partners
23. Work remotely or from our sunny HQ in Barcelona, alongside a passionate and international team
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