Senior AI & ML Scientist

What you'll do

• Build and maintain ML models for on-demand pay optimization, content personalization, and fraud controls.
• Develop reliable data pipelines and features for model development following infrastructure standards.
• Deploy, monitor, and improve both batch and real-time models in production environments.
• Translate business questions into well-structured data science solutions and modeling approaches.
• Write clean, well-documented, and reproducible code for all model development and pipeline work.
• Communicate model results and technical tradeoffs to product and cross-functional partners.
• Identify data infrastructure gaps and advocate for solutions with engineering partners.
• Follow and contribute to data quality standards and validation practices.

What we're looking for

• 5+ years of Machine Learning experience within fintech, payments, or a similarly regulated consumer domain.
• Bachelor’s or advanced degree in a quantitative discipline such as computer science, machine learning, statistics, or data science.
• Proven track record of independently building models that drive measurable business outcomes and shipping production models.
• Advanced SQL and Python skills with experience building and maintaining reliable feature engineering pipelines.
• Hands-on experience with end-to-end model deployment, including data pipelines, model monitoring, drift detection, and A/B test execution.
• Experience owning models in production environments where failures have real financial or compliance consequences.
• Strong proficiency across modern AI, classical ML, statistical, and probabilistic methods.
• Ability to translate business objectives into modeling approaches and communicate technical tradeoffs to cross-functional partners.