Hybrid Senior Data Scientist

Posted last week

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About the role

  • Develop machine learning models applied directly to the product, with a primary focus on recommendation, personalization, and user behavior models.
  • Translate business problems into tangible and measurable statistical solutions, defining hypotheses, metrics, collection strategy, validation, and rollout.
  • Work with structured and semi-structured data from Onfly’s data ecosystem, including BigQuery, microservices, events, and tactical databases.
  • Collaborate with Engineering and DataOps on integrating models into the analytical and transactional ecosystem, ensuring technical requirements for performance, reliability, and governance (latency, frequency, criticality, observability, and cost).
  • Conduct experiments and validations in a production environment (A/B tests, uplift metrics, product impact).
  • Evolve the company’s data science stack, influencing best practices, versioning, monitoring, and governance.
  • Serve as a technical reference in the data science chapter, supporting architecture discussions, feature store strategy, and consumption via microservices.
  • Develop and advance predictive and prescriptive models applied to the product, expanding the embedded intelligence within Onfly’s ecosystem.

Requirements

  • Master’s or PhD in Data Science.
  • Previous experience with Vertex AI, Airflow, or other MLOps tools.
  • Experience with microservices-based architectures and API consumption.
  • Familiarity with recommendation and personalization in digital platforms.
  • Experience with models related to engagement, risk, credit, or churn.
  • Active participation in evolving data ecosystems at growth-stage companies.

Benefits

  • Meal allowance on a flexible card: R$35 (no 6% payroll deduction).
  • Transportation allowance on a flexible card (no 6% payroll deduction).
  • Unimed health plan with no copayment and no monthly fee for the Onfly employee (company-covered).
  • Dental plan (discounted monthly fee).
  • Pharmacy discounts.
  • No dress code.
  • Online psychotherapy benefit (Vittude).
  • Gym benefits (Gympass).
  • 90% subsidy for language courses.
  • R$1,000 annual budget for trainings/certifications in your area of expertise.
  • Discounts on undergraduate and graduate programs (UNA and UNIBH).
  • Funeral assistance (Grupo Zelo).
  • Extended maternity/paternity leave.
  • R$200 voucher on Onhappy (exclusive platform for discounted travel anywhere in Brazil).
  • Life insurance.

Job title

Senior Data Scientist

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Postgraduate Degree

Tech skills

Location requirements

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