We're looking for a Lead Java Developer to join our team in Spain in a remote working mode. In this role, you will design and develop scalable, data-driven applications and microservices leveraging Java and cloud-native architectures. You will collaborate with cross-functional teams to simplify user journeys, ensure real-time data integrity and drive high-quality software delivery following Agile principles.
This position offers the opportunity to contribute to the development of business-critical platforms for a leading integral financial market infrastructure provider, with exposure to emerging technologies including AI integration and advanced DevOps practices.
Responsibilities
- Develop, enhance and maintain Java-based applications using Spring Boot and modern frameworks
- Design and implement microservices architectures, adhering to RESTful API standards
- Build cloud-native solutions on AWS, including Lambda, API Gateway, DynamoDB and other services
- Ensure application reliability and scalability while improving performance and usability
- Implement CI/CD pipelines using GitLab,



Terraform and containerization with Docker
- Apply TDD principles, covering unit, integration and contract-based testing
- Produce clean modular code and maintain comprehensive API documentation with OpenAPI/Swagger
- Collaborate with stakeholders to future-proof technical designs for evolving analytics needs
- Design and deploy AI-enabled features using Java and integrated AI frameworks
- Stay current with Java ecosystem trends, AWS best practices and AI development techniques

Requirements
- 5+ years of hands-on experience in Java development (Java 17+ preferred)
- Solid background in Spring Boot or Quarkus for enterprise-grade applications
- Expertise in RESTful APIs and microservices architecture on HTTP standards
- Practical experience with AWS services such as Lambda, EC2, S3, Step Functions, EKS, DocumentDB and Bedrock
- Proficiency in relational and non-relational databases, inc

📌 Lead Java Developer (España)
🏢 Epam Systems
📍 España