The **BR Media Group** is a leading content hub in the market for the creator economy. We operate with a **data-driven mindset**, pioneering influence and content solutions for the world’s top brands. We are not just an agency—we are a *tech company focused on marketing*. Our culture breathes innovation. Here, data are not merely numbers on a spreadsheet; they are the fuel that determines who the next major influencer will be and which content will go viral. We are seeking a person **passionate about innovation and Artificial Intelligence** to join our **Technology and Data team**, working directly at the core of our influencer marketing operations and new product development. If you thrive on technical challenges, love exploring the potential of LLMs (Large Language Models), and want to see your code impact global campaigns, we want to meet you! ### **Responsibilities and Duties** As a Senior Data Scientist focused on GenAI, you will play a pivotal role in transforming raw data into intelligent products. Your day-to-day will include: * **GenAI Product Development:** Design and implement Generative AI (LLM)-based solutions for script automation, briefing creation, advanced sentiment analysis, and predictive brand-creator matching. * **RAG Architecture:** Develop and maintain RAG (Retrieval-Augmented Generation) pipelines to enrich our models with BR Media’s proprietary data. * **Modeling and Analysis:** Build predictive models to estimate campaign success and influencer engagement, leveraging classical Machine Learning and Deep Learning techniques. * **Prompt Engineering and Fine-Tuning:** Optimize prompts and, when required, perform fine-tuning of open-source models for specific advertising-market contexts. * **Multidisciplinary Collaboration:** Work closely with Product Managers and Developers to integrate AI models directly into the company’s platform (Deployment and MLOps). * **Monitoring:** Track production model performance metrics and ensure the quality of generated outputs. ### **Requirements and Qualifications** We seek someone with strong technical foundations and exceptional ability to apply them to business needs: * **Education:** Bachelor’s degree completed in Computer Science, Statistics, Mathematics, Engineering, Physics, or related fields (or equivalent proven experience). * **Python Proficiency:** Solid experience with data manipulation libraries (Pandas, NumPy) and Machine Learning frameworks (Scikit-Learn). * **GenAI/NLP Experience:** Practical knowledge of NLP frameworks (Hugging Face, LangChain, LlamaIndex) and usage of LLM APIs (OpenAI, Anthropic, etc.). * **Databases:** Proficiency in SQL and experience with Vector Databases (Pinecone, Weaviate, ChromaDB or similar). * **Soft Skills:** Strong oral and written communication skills to translate complex technical concepts for business and marketing teams. * **Preferred Qualifications:** + Prior experience in Advertising, Influencer Marketing, or Tech Startups. + Knowledge of Cloud platforms (AWS/GCP/Azure) and MLOps practices. ### **Additional Information** At BR Media, we care for those building the future with us: * **Meals:** Meal voucher of R$46.00 per business day; * **Well-being:** Totalpass and Gympass partnerships; Star Bem and Avus partnerships; * **Healthcare:** Bradesco health insurance plan; * **Exclusive Benefits:** iFood Club (discount coupons) and Birthday Day Off; * **Family Support:** Daycare allowance for children up to 6 years old (benefit for mothers); * **Mobility:** Transportation voucher and Remote Work allowance; * **Culture:** Casual dress code (come as you feel comfortable!); * **Employment Type:** CLT employment regime; * **Work Model:** Hybrid — 3 days per week onsite (modern office near Morumbi Shopping in São Paulo/SP).