**Job Opening \| Senior Data Scientist (Fraud \| Hands-on)** Remote \| Data & AI \| Machine Learning in Production At **L3**, we believe that **IT Is About People**. We are a *consultech* that helps companies stand out through technology, data, and agile practices — always putting people at the center. We are looking for a hands-on **Senior Data Scientist** to work on strategic **Fraud** projects, with strong technical involvement, automation, and Machine Learning in production. What you will do: Develop **data automations and pipelines** in Python, PySpark, and SQL Build and maintain **end-to-end Machine Learning models** (scoping, deployment, monitoring) Work with **large-scale data in distributed environments (Spark)** Modernize legacy processes (alert engines, rule sets, and databases) Monitor models, handle **drift**, and ensure reproducibility Act as a **technical reference**, supporting junior professionals through code reviews and best practices. What we expect from you: Solid experience as a **Senior Data Scientist**, with technical ownership Strong proficiency in **Python**, **SQL**, and **PySpark** Experience with **ML in production**, pipelines, versioning, and monitoring Ability to work autonomously and translate complex processes into robust solutions Good communication skills and ability to **lead meetings in English** Nice-to-haves: Experience with **Fraud models** Work in **regulated environments** or with sensitive data Experience as a hands-on **technical mentor** Project context: You will initially work on a strategic **Fraud project**, focused on **internalizing and modernizing the alert and investigation engine**, replacing legacy solutions with a data-, automation-, and Machine Learning–driven approach. Additionally, you will support other AI/ML projects, contributing to the maturation of Data Science practice within the organization. **Benefits:** **CLT employment contract** **Life Insurance** **SulAmérica Health Plan** **SulAmérica Dental Plan** **Home Office Allowance** **Meal Voucher**
João Silva
Indeed · HR
João Silva
Indeed · HR
