MoAIJobs
  • Job Categories
    • CloudWalk logo

    CloudWalk

    Company

    Data Scientist (Core ML & Statistics)

    Remote

    Job Description

    Who we are:

    CloudWalk is a fintech company reimagining the future of financial services. We are building intelligent infrastructure powered by AI, blockchain, and thoughtful design. Our products serve millions of entrepreneurs across Brazil and the US every day, helping them grow with tools that are fast, fair, and built for how business actually works. Learn more at cloudwalk.io.

    About the Role:

    We’re hiring a Data Scientist with strong foundations in statistics, causal inference, and experimental design. Your work will be centered on rigorous analysis: designing robust experiments, validating assumptions, and extracting clear insights from complex data. This is not a “dashboards and KPIs” role — it’s about applying statistical thinking and careful modeling to answer hard questions and guide product direction.

    We want someone who can think critically with data, separate signal from noise, and provide results that stand up to scrutiny.

    What You'll Do:

  • Design, run, and analyze A/B tests and other experimental frameworks.
  • Apply statistical inference, hypothesis testing, and causal analysis to evaluate product changes.
  • Build, tune, and interpret classical ML models (regression, classification, ranking) with a focus on explainability and robustness.
  • Use rigorous exploratory analysis to uncover hidden patterns or validate product hypotheses.
  • Develop reproducible workflows for experimentation and modeling.
  • Collaborate with product and engineering to ensure experiments and analyses translate into well-grounded decisions.
  • Contribute to a culture of statistical rigor, clarity, and curiosity.
    • ,

    What We Value:

  • Deep understanding of statistics, probability, and causal inference.
  • Comfort moving between theory and practice: from modeling assumptions to implementation details.
  • Clear, precise communication of methods, assumptions, and results.
  • Patience to validate before scaling, and rigor in separating correlation from causation.
    • ,

    Bonus Points:

  • Experience with uplift modeling.
  • Experience in product analytics or growth-focused DS.
  • Experience working with Airflow, BigQuery, dbt, or similar data infra.
  • Experience in training and shipping models to production.
  • Familiarity with basic experimentation pitfalls (SRM, novelty effects, power issues).
    • ,

    How We Hire:

  • Online assessment: technical logic and fundamentals (Math/Calculus, Statistics, Probability, Machine Learning/Deep Learning, Code).
  • Technical interview: deep dive into theory and reasoning for fraud detection (no code).
  • Cultural interview.
    • If you are not willing to take an online quiz, do not apply.

    Please mention that you found this job on MoAIJobs, this helps us grow. Thank you!

    CloudWalk logo

    CloudWalk

    19 jobs posted

    View all CloudWalk jobs

    About the job

    Posted on

    Aug 21, 2025

    Apply before

    Sep 20, 2025

    Job typeFull-time
    CategoryData Science

    Share this job opportunity

    Professional headshot example

    Job applications getting ignored?

    Professional headshots increase response rates by 40%

    Ready in 3 minutes
    Save $200+ vs photographer
    Perfect for LinkedIn & resumes
    Get My Headshots

    Similar Jobs

    Discover more opportunities that match your interests

    View all Data Science jobs

    Looking for something different?

    Browse all AI jobs