AI - Java Developer - Spain

Location: Spain

Start date: ASAP

About the Role: 

We are seeking an experienced AI Developer with strong Java expertise to join a major international innovation and digitalization initiative led by a global organization dedicated to intellectual property and public service. 

The successful candidate will have at least 5 years of professional development experience, with a solid background in Java-based web applications, who has since transitioned into the AI/ML field. You will work closely with the Applicant Incubator Division to design, develop, and test AI-based tools that enhance trademark classification and intelligent agent capabilities, leveraging AWS Bedrock and related services. 

This role is ideal for a seasoned developer who has evolved their career into AI and now wants to deliver impactful, operational prototypes that support both internal workflows and external global users. 

Key Responsibilities:

• ·Develop and implement practical AI-based tools and prototypes for trademark classification and AI agent tasks.

• Contribute to the improvement of AI models through better context processing, example injection, and retrieval-augmented generation (RAG) techniques.

• Build Java-based web interfaces for AI tool prototypes, suitable for end-user testing and feedback.

• Analyze and enhance ground truth data quality and consistency used to train and evaluate AI tools.

• Document implementations clearly and thoroughly for reproducibility and future development.

• Collaborate closely with project managers, examiners, and IT teams to ensure tools meet real-world needs.

• Maintain weekly progress updates through JIRA tickets, status reports, and technical notes.

• Ensure all developments meet the organization’s quality and information security standard.

Key Responsibilities: 

• Develop and implement AI-based tools and prototypes for trademark classification and AI agent tasks. 

• Build and integrate Java-based web interfaces for AI prototypes, enabling end-user testing and feedback. 

• Implement and optimize retrieval-augmented generation (RAG), context injection, and example-based techniques. 

• Work with AWS Bedrock and related cloud services to deliver scalable and reliable AI solutions. 

• Analyze and improve the quality of training and evaluation data (ground truth). 

• Clearly document implementations for reproducibility and handover. 

• Collaborate with project managers, examiners, and IT teams to ensure solutions address real-world requirements. 

• Provide weekly progress updates via JIRA, technical notes, and reports.  

• Ensure compliance with organizational quality and information security standards. 

Required Skills and Experience: 

• 5+ years of professional software development experience. 

• Strong proficiency in Java for web application development. 

• Proven experience with AI/ML frameworks and cloud-based solutions, especially AWS Bedrock. 

• Demonstrated transition from traditional software development into AI/ML solution development. 

• Strong knowledge of prompt engineering, data preprocessing, and AI model evaluation. 

• Hands-on experience with RAG and context/example injection. 

• Familiarity with Agile workflows and tools (JIRA). 

• Excellent documentation and communication skills, comfortable in international environments. 

Nice to Have: 

• Experience with NLP in the legal or trademark domain. 

• Background in classification systems or semantic search tools. 

• Experience developing AI tools for public sector or international organizations. 

Benefits: 

• Competitive salary and benefits package. 

• Work on meaningful AI-driven initiatives supporting international innovation. 

• Opportunities for professional growth and continuous learning. 

• Collaborative, international team environment with modern development practices.