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Mid-level Data Science Analyst – AI
Location
Brazil
Posted
1 day ago
Salary
0
Seniority
Senior
Job Description
Mid-level Data Science Analyst – AI
banco BV
• Work on training and evaluating models and prompts, fine-tuning, optimization of chunking and tokenization, bias detection, adversarial prompt testing, and selection of embeddings (supporting RAG); • Train and evaluate generative AI models, including LLMs and multimodal models; • Develop and optimize prompts, including adversarial testing and risk mitigation; • Perform fine-tuning and hyperparameter tuning to maximize performance; • Implement chunking and tokenization strategies for efficiency and quality; • Detect and remediate biases in data and models, ensuring ethical compliance; • Select and validate embeddings for RAG (Retrieval-Augmented Generation) applications; • Monitor quality, robustness, and safety metrics for models; • Collaborate as a subject-matter specialist with engineers and architects to securely integrate models into production pipelines.
Job Requirements
- Generative AI Models: LLMs, diffusion models, Transformer architectures;
- Fine-tuning and Prompt Engineering: advanced techniques, RLHF (Reinforcement Learning from Human Feedback);
- Tokenization and Chunking: strategies for context optimization;
- Embeddings and RAG: selection, evaluation, and integration with retrieval/search mechanisms;
- Bias & Fairness: techniques for detecting and mitigating biases;
- Security and Robustness: adversarial testing, jailbreak prevention;
- Tools and Frameworks: ADK, CrewAI, Agno, LangChain, LangGraph.
Benefits
- Remote work model
- CLT employment (Brazilian statutory employment contract)
- Flexible working hours
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