
AI Engineer
- Remote, Hybrid
- Barcelona, Spain
Drive real-world AI innovation by developing practical tools for classification and intelligent agents using AWS Bedrock and Java-based solutions.
Job description

Location: Spain
Fully remote position, but you should be located within ±2 hours of CET
Start date: ASAP
We are currently seeking a skilled and experienced AI Engineer to join a major international innovation and digitalization initiative led by a global organization dedicated to intellectual property and public service. The selected candidate will work closely with the Applicant Incubator Division to develop, integrate, and test AI-based tools that enhance trademark classification and intelligent agent capabilities.
This role focuses on delivering practical, operational AI prototypes using frameworks such as AWS Bedrock and integrating them into web-based environments. You will contribute to the advancement of AI-driven services that directly support internal workflows and external users across a high-impact, global platform.
You will join a collaborative team focused on enhancing global access to patent systems through cutting-edge digital tools.
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.
Job requirements
Required Skills and Experience:
· 5–10 years of professional experience in AI/ML solution development.
· Strong experience with AI frameworks, especially AWS Bedrock and related services.
· Proficiency in Java-based web application development.
· Solid understanding of prompt engineering, data preprocessing, and AI model evaluation.
· Ability to implement retrieval-augmented generation (RAG), context injection, and example-based enhancements.
· Familiarity with agile tools and workflows, especially JIRA.
· Strong documentation and reporting skills.
· Excellent communication skills and ability to work in an international environment.
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 the public sector or international organizations.
or
- Barcelona, Spain
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