Analista de Ciência de Dados em IA Pleno

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Analista de Ciência de Dados em IA Pleno based in Brazil.

This is an exciting opportunity for a data science professional passionate about Generative AI and advanced machine learning applications. In this role, you will contribute to the development, optimization, and evaluation of cutting-edge AI models that support large-scale digital products and customer experiences. Working in a collaborative and innovation-driven environment, you will help shape AI solutions with a strong focus on performance, ethics, security, and scalability. You will partner closely with engineers, architects, and cross-functional teams to bring AI initiatives from experimentation to production. This position is ideal for someone eager to work with modern AI frameworks, influence strategic initiatives, and drive meaningful impact through data and technology.

Accountabilities

• Train, evaluate, and optimize Generative AI models, including Large Language Models (LLMs) and multimodal architectures.
• Design, test, and refine prompts using advanced prompt engineering techniques and adversarial testing methodologies.
• Perform fine-tuning, hyperparameter optimization, and model performance assessments to improve accuracy and efficiency.
• Develop and implement effective tokenization and chunking strategies to maximize contextual understanding and model quality.
• Select, evaluate, and integrate embeddings for Retrieval-Augmented Generation (RAG) applications and intelligent search systems.
• Identify, monitor, and mitigate biases in datasets and AI models while ensuring ethical and responsible AI practices.
• Measure model robustness, quality, and security through continuous monitoring and testing frameworks.
• Collaborate with engineering and architecture teams to integrate AI solutions securely into production pipelines and enterprise environments.
  
  

Requirements

• Previous experience in Data Science, Machine Learning, Artificial Intelligence, or related analytical roles.
• Strong knowledge of Generative AI concepts, including LLMs, Transformer architectures, and diffusion models.
• Hands-on experience with prompt engineering, fine-tuning techniques, and reinforcement learning concepts such as RLHF.
• Solid understanding of embeddings, vector search, and Retrieval-Augmented Generation (RAG) methodologies.
• Familiarity with bias detection, fairness principles, adversarial testing, and AI safety practices.
• Experience with AI frameworks and orchestration tools such as LangChain, LangGraph, CrewAI, Agno, or similar technologies.
• Strong analytical thinking, problem-solving capabilities, and the ability to work collaboratively in cross-functional teams.
• Excellent communication skills and the ability to translate technical concepts into practical business applications.
  
  

Benefits

• Remote work model with flexibility to work from anywhere in Brazil.
• CLT employment contract with long-term stability and comprehensive labor benefits.
• Flexible working hours to promote work-life balance.
• Opportunity to work on innovative AI initiatives within a highly digital and technology-driven environment.
• Inclusive and diverse workplace culture that values different backgrounds, perspectives, and experiences.
• Exposure to cutting-edge Generative AI technologies and opportunities for continuous learning and professional development.
• Collaborative environment focused on innovation, agility, and customer-centric solutions.
  
  

How Jobgether Works

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.