[Job 20798 ] Senior Data Scientist, Brazil

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.With over 6,500 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. 
When applying for one of our positions, you’re agreeing to the use of AI in the early phases of the selection process, where your profile will be evaluated by our virtual assistant. For more information, access our opportunities’ page.
Company OverviewCI&T is a global technology services provider helping businesses accelerate their digital transformation. With expertise across various industries and technologies, we partner with our clients to deliver innovative solutions that drive business growth and operational excellence. We are currently seeking talent to support our client in the mortgage technology space who is revolutionizing the industry through AI/ML solutions.
Role OverviewCI&T is seeking an experienced Data Scientist to join our nearshore team working on a project for our client in the mortgage technology sector. In this role, you will focus on analyzing patterns in third-party API usage and developing algorithms to optimize the sequence and decision-making around these API calls. You will work with expensive verification services ($100s per call) to create intelligent "waterfall" strategies that minimize unnecessary calls while maintaining effective verification processes. Your work will directly impact cost efficiency and processing speed for mortgage verification workflows.
Key ResponsibilitiesAnalyze historical patterns of third-party API usage in verification processes (income, employment, assets)Develop statistical models and algorithms to optimize the sequence and necessity of API callsCreate intelligent "waterfall" strategies that minimize expensive API calls while maintaining verification qualityBuild predictive models to determine when certain verification services are likely to provide value vs. costDesign algorithms that can make real-time decisions on which verification services to call based on available dataQuantify and track cost savings achieved through API call optimizationCollaborate with engineers to implement your models and algorithms into production systemsDevelop metrics and KPIs to measure efficiency gains and cost savingsWork with business stakeholders to understand verification requirements and translate them into optimization strategiesResearch and implement machine learning techniques to improve decision-making around third-party service utilization
Required QualificationsMaster's degree or higher in Data Science, Statistics, Mathematics, Computer Science, or related fieldSolid experience in data science or machine learning rolesExperience with optimization algorithms and decision tree-based approachesProven track record of cost optimization through data analysisExperience analyzing API usage patterns and creating efficient workflowsStrong knowledge of statistical analysis, probability, and experimental designExperience with AWS services (SageMaker, Lambda, S3, etc.)Advanced or fluent English communication skills (both written and verbal) are essential for collaboration in a remote environment
Preferred QualificationsExperience with optimization problems, particularly cost or resource optimizationKnowledge of decision theory and sequential decision-makingFamiliarity with financial service verification processes or systemsBackground in operations research or similar analytical fieldProgramming skills in Python and experience with ML libraries (scikit-learn, TensorFlow, PyTorch)Experience with A/B testing and experimental designKnowledge of data ethics and privacy considerations in handling sensitive dataPrior experience working with international teamsUnderstanding of how to balance business rules with cost optimization
#LI-JP3#MidseniorOur benefits:
-Health and dental insurance-Meal and food allowance-Childcare assistance-Extended paternity leave-Wellhub (Gympass)-TotalPass-Profit-sharing (PLR)-Life insurance-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 platformAnd many more!More details about our benefits here: https://ciandt.com/br/pt-br/carreiras


Collaboration is our superpower, diversity unites us, and excellence is our standard. We value diverse identities and life experiences, fostering a diverse, inclusive, and safe work environment. We encourage applications from diverse and underrepresented groups to our job positions.