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Leonardo RafaeliLR
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Leonardo Rafaeli

@leonardorafaeli

I build AI-assisted cybersecurity and cloud systems that improve detection and analyst workflows.

Ireland
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What I'm looking for

I'm looking to build reliable, scalable cybersecurity and cloud systems, especially AI-assisted workflows that combine LLMs, retrieval, automation, and security data to improve threat intelligence and analyst productivity.

At Microsoft Threat Intelligence Center, I build full-stack cybersecurity solutions that support threat detection, investigation, and analyst workflows at scale. I develop Generative AI capabilities using AI agents, RAG pipelines, evaluation, and security data to improve productivity and automation.

Previously at Shutterstock, I led the Taxonomy initiative and core ontology architecture, operating media metadata services at roughly 3,000 RPS. I built messaging-based microservices and knowledge-graph solutions using Java, Kafka, NeptuneDB, RDF, SPARQL, AWS, Docker, and Kubernetes while mentoring and onboarding engineers.

Across Pitney Bowes, Aer Lingus, Ericsson, and consulting roles, I've modernized integration platforms, migrated middleware to serverless AWS solutions, led teams, improved testing and delivery processes, and designed SOA and distributed systems.

Experience

Work history, roles, and key accomplishments

Education

Degrees, certifications, and relevant coursework

Dundalk Institute of Technology logoDT

Dundalk Institute of Technology

Postgraduate, Large Language Models and Agentic AI

2025 - 2026

Postgraduate program in Large Language Models and Agentic AI, focusing on advanced AI technologies and their applications.

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