remote
Sr. Data Scientist - Visa
Data Scientist
Lead AI‑driven decision intelligence for post‑purchase dispute resolution, leveraging Python, ML, and cloud analytics to deliver scalable insights and predictive models that enhance fraud prevention and customer experience.
About the role
Key Responsibilities
- Design, develop, and deploy end‑to‑end machine learning pipelines for dispute prediction and resolution.
- Collaborate with cross‑functional teams to define business metrics and translate them into data‑driven solutions.
- Engineer large‑scale data workflows using SQL and AWS services (S3, Redshift, Glue).
- Perform feature engineering, model training, hyper‑parameter tuning, and model validation at production scale.
- Monitor model performance, conduct root‑cause analysis, and iterate for continuous improvement.
Requirements
- 5+ years of experience in data science or analytics roles.
- Proficiency in Python, SQL, and experience with ML libraries (scikit‑learn, TensorFlow, PyTorch).
- Hands‑on experience with AWS data services and cloud‑based ML deployment.
- Strong analytical mindset with excellent problem‑solving skills.
- Effective communication skills for presenting insights to technical and non‑technical stakeholders.
Skills
pythonmachine learningsqlaws