Cientista de Dados Sênior - Search Platform IT
Core
Design and scale innovative, secure search systems to improve result relevance and business impact for Mercado Livre's e-commerce and financial services in Latin America.
Role type
Senior IC machine-learning engineer (search)
Builds
Search ranking models and features for e-commerce and financial services
Domain
E-commerce and financial services
Deliverable
production ML models
Required skills
Information Retrieval, Learning to Rank, Python, SQL, A/B testing, large-scale data processing (BigQuery/Spark), ranking metrics (NDCG, MRR, MAP)
Preferred skills
None stated
Technologies
Python, BigQuery, Spark
Responsibilities
Design and evaluate ranking models using Learning to Rank approaches; Build features from large volumes of search data; Design and analyze offline experiments to measure model quality; Collaborate with Engineering to deploy and monitor models in production; Balance user relevance, business results, and technical constraints.
Seniority
Senior, hands-on IC
