Senior Data Scientist - Cybersecurity

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Data Scientist - Cybersecurity based in Brazil.

• This role sits at the intersection of data science, natural language processing, and AI security, with a strong focus on building reliable machine learning solutions.
• You will work hands-on across data curation, model development, evaluation, optimization, and production deployment for AI security use cases.
• The position focuses on identifying risks in AI interactions, including sensitive-data exposure, unsafe content, adversarial inputs, and malicious prompts.
• You’ll work with transformer-based models and large language model technologies while developing high-quality datasets and rigorous evaluation frameworks.
• The role combines experimentation and practical production engineering, with particular attention to accuracy, robustness, latency, and efficiency.
• You’ll collaborate with AI and engineering teams to turn research and experimentation into scalable solutions that address evolving AI-related threats.