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Keyrus

Senior Data Scientist – Fluent English

Keyrus

. Develop automations and data pipelines using Python, PySpark, and SQL to modernize processes and reduce manual work .

Posted 9/26/2026full-timeSão Paulo • BrazilSeniorWebsite

Tech Stack

Tools & technologies
PySparkPythonSQL

About the role

Key responsibilities & impact
  • Develop automations and data pipelines using Python, PySpark, and SQL to modernize processes and reduce manual work
  • Architect and develop end-to-end Machine Learning models, from data exploration and feature engineering through deployment, production monitoring, and retraining
  • Work with large volumes of data in distributed environments, ensuring performance, quality, and traceability
  • Work on Fraud, AML, Lead Scoring, and Churn projects, creating business-focused data and ML solutions
  • Serve as a technical reference, supporting junior professionals through code reviews, best practices, and guidance in Data Science and ML
  • Lead meetings and technical interactions in English
  • Transform legacy processes into automated, robust, and scalable solutions

Requirements

What you’ll need
  • Fluent English, with the ability to lead meetings
  • Proven experience as a Senior Data Scientist, taking technical ownership of end-to-end AI/ML initiatives, from ideation and scoping through implementation and production operations
  • Strong command of Python applied to Data Science, automation, and pipeline development
  • Hands-on experience with ML pipelines, model and artifact versioning, and reproducibility
  • Experience with model monitoring and drift management
  • Experience with large-scale data and distributed environments (PySpark)
  • Ability to work autonomously, assume technical ownership, and translate legacy processes into robust automations
  • Strong communication skills, with the ability to explain technical decisions clearly and objectively
  • Excellent communication skills with both technical and non-technical audiences
  • Ability to translate business needs into practical and scalable solutions
  • Ability to influence decisions and build trusted relationships with stakeholders
  • Analytical and problem-solving mindset
  • Focus on delivering value and results for clients and the business
  • Collaboration, knowledge sharing, and continuous improvement

Benefits

Comp & perks
  • Diversity and multiculturalism are part of everyday life at Keyrus
  • Opportunity to connect with people from different parts of the world
  • Knowledge and idea sharing
  • Collaborative work on high-quality projects