[Job - 28674] Master Data Scientist, Brazil

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.
With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.

We are developing an AI-powered broadcast media planning solution for one of the largest radio players in the United States. The project leverages AWS (Bedrock, Lambda) to create a system that democratizes access to sophisticated multi-market planning strategies, enabling sellers of all experience levels to generate mathematically optimized proposals with unprecedented speed and precision.

Responsibilities:
As a Master Data Scientist, you will be responsible for designing and implementing the two-tier optimization engine: (1) heuristic algorithms for market prioritization and budget allocation across multiple markets, and (2) Mixed-Integer Programming (MIP) optimization to maximize audience impressions delivery within each market, respecting inventory, pricing, and business constraints. You will work in close collaboration with the client's domain experts throughout the development process, in an agile environment with 2-week sprints.

Requirements for this challenge:
Fluent English (conversation and technical documentation)
Solid experience in Data Science, Operations Research, or Optimization Engineering
Expertise in Mixed-Integer Programming (MIP) and optimization solvers (Gurobi, CPLEX, or similar)
Solid experience with AWS
Advanced Python
Heuristic algorithm design for large-scale combinatorial problems
Proven experience delivering optimization solutions to production
Multi-objective optimization (balancing multiple metrics and constraints)
Translating business requirements into mathematical formulations
Collaborative work with non-technical stakeholders to co-develop solutions
Agile methodologies (Scrum, 2-week sprints)

Nice to Have:
AWS Lambda for optimization workload deployment
Experience in advertising/media planning or marketing optimization
Knowledge of media metrics (CPM, GRP, impressions, reach, frequency)
Parallel computing for scalable optimization
Model Context Protocol (MCP) or integrations with multiple data sources
Experience with AWS Bedrock or other AI/ML platforms

#LI-JP3

Our benefits:

-Health and dental insurance
-Meal and food allowance
-Childcare assistance
-Extended paternity leave
-Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;
-Profit Sharing and Results Participation (PLR);
-Life insurance
-Continuous learning platform (CI&T University);
-Discount club
-Free online platform dedicated to physical, mental, and overall well-being
-Pregnancy and responsible parenting course
-Partnerships with online learning platforms
-Language learning platform
And many more!

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.

We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.