Data Scientist - LLMs

VTEX
Full-time Brazil, Brazil Unknown
Posted:
February 28, 2026
Location:
Brazil, Brazil, Brazil

Job Description

As a Data Scientist , you will join the AI Models team at Weni by VTEX, a business unit of VTEX. You will be responsible for researching, developing, and improving machine learning models that power our conversational agents and multi-agent systems. You are driven by curiosity and impact, transforming complex data into tangible improvements in user experience and product performance.

What you will do
  • Research, design, and implement machine learning models to improve the performance of conversational agents and multi-agent systems.
  • Analyze large datasets to extract insights that guide model improvements and product decisions.
  • Work closely with engineers and product managers to bring AI models from prototype to production.
  • Continuously evaluate model performance and iterate based on real-world usage and feedback.
  • Perform exploratory data analysis (EDA) to uncover hidden structures, anomalies, and relationships in data, infor...

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Job Overview

Job Type: Full-time
Location: Brazil, Brazil
Posted: February 28, 2026
Deadline: April 09, 2026