Full Stack Engineer; Java

Full Stack Engineer (Java)

• R&D
• Madrid, Spain

Theta Ray provides AI-driven anti-financial crime technology used by global banks and fintechs to detect money laundering and financial crimes.

Our Madrid office is a key R&D hub with 50+ team members across engineering, data, and customer delivery, working closely with strategic customers across the region.

As a Full Stack Engineer
, you will design and build scalable backend services and modern web applications that power Theta Ray’s financial crime detection platform.

Technology: Java, Spring Boot, Angular, microservices, REST APIs, Redis, Docker, CI/CD

What you’ll work on

• Building high-performance Java microservices that process large-scale financial transaction data
• Developing REST APIs and distributed backend systems using Java and Spring Boot
• Creating modern web applications and reusable UI components using Angular
• Integrating backend services with data-driven and AI-powered capabilities
• Contributing to scalable distributed architectures and event-driven systems

Key requirements:

• Strong experience developing backend systems using Java and Spring Boot
• Experience building REST APIs and microservices architectures
• Experience developing frontend applications using Angular
• Experience working with SQL or No
  
  SQL databases
• Experience working in Linux environments and CI/CD pipelines
• Fluent Spanish and strong English communication skills (written and spoken)