Senior Machine Learning Scientist

Storm2; San Francisco (CA); On-site; USD 210,000 - 280,000; Full time

Job summary

Storm2 is partnering with a venture-backed fintech in San Francisco reinventing credit underwriting with AI-native risk models. They are building production-grade AI applications to improve lending decisions and risk assessment.

As Senior ML Data Scientist, you will lead model development for credit risk, fraud, and underwriting, deploying embeddings, transformers, and LLMs, and collaborating with engineering and risk teams to bring models into live decisioning systems.

Qualifications

• 7+ years of ML, Data Science, Credit Risk, or Fraud experience.
• Hands-on experience deploying LLMs, embeddings, transformers, or deep learning models into production.
• Strong Python and SQL skills; experience with risk or fintech applications.

Responsibilities

• Build and deploy production ML models across credit risk, underwriting, and fraud.
• Use embeddings, neural networks, transformers, and LLMs to enrich financial data representations.
• Develop underwriting workflows combining classical ML with modern AI architectures.
• Design real-time fraud detection systems using rules-based and ML approaches.
• Engineer features from structured and unstructured financial datasets.
• Monitor model performance, drift, and reliability in production.
• Partner with engineering and risk teams to deploy models into live decisioning systems.
• Help define technical strategy and set ML standards across the company.

Skills

Python

SQL

PyTorch

XGBoost

LightGBM

LLMs

Embeddings

Transformers

Deep Learning

Tools

PyTorch

XGBoost

LightGBM

Job description

Senior ML Data Scientist | AI-Native FinTech | Onsite, SF

We are partnered with a venture-backed fintech that's reinventing credit underwriting from the ground up.

Instead of relying on traditional credit scores, they're building AI-native risk models that leverage transaction data, financial documents, and other structured and unstructured datasets to make lending decisions. Founded by former YC founders and engineers from companies like Square, Facebook, and Box, they've raised capital from top-tier investors and are building one of the most ambitious AI applications in financial services.

They're looking for a Senior ML Data Scientist to help shape the future of their credit, fraud, and underwriting platform.

What you'll work on:

• Building and deploying production ML models across credit risk, underwriting, and fraud
• Using embeddings, neural networks, transformers, and LLMs to create richer representations of financial data
• Developing underwriting workflows that combine classical ML with modern AI architectures
• Designing real-time fraud detection systems using both rules-based and machine learning approaches
• Engineering features from structured and unstructured financial datasets
• Monitoring model performance, drift, and reliability in production
• Partnering with engineering and risk teams to bring models into live decisioning systems
• Helping define technical strategy and set the bar for machine learning across the company

What they're looking for:

• 7+ years of ML, Data Science, Credit Risk, or Fraud experience
• Hands-on experience deploying LLMs, embeddings, transformers, or deep learning models into production
• Strong Python and SQL skills
• Experience with PyTorch, XGBoost, LightGBM, or similar frameworks
• Strong fundamentals in statistics, experimentation, anomaly detection, and model evaluation
• Someone who thrives in early-stage environments and enjoys influencing technical direction