Middesk
Data Scientist
$175K–$210K
San Francisco +1 · Hybrid · Full-time · Posted May 1, 2026
- Location
- San Francisco
New York - Experience
- 5+ years in fraud, risk, or trust and safety.
About the job
Build and scale production fraud and risk systems for business onboarding, trust and safety, and compliance workflows.
What you'll do
- Design and ship systems to detect and prevent fraud across KYB, trust and safety, and compliance.
- Use graph-based approaches, entity resolution, heuristics, weak supervision, and AI tools to improve risk signals and labels.
- Partner with engineering to scale feature generation, model training, and production deployment.
What they ask for
- 5+ years of experience in fraud, risk, or trust and safety.
- Experience deploying models or data-driven systems for external-facing products.
- Strong foundation in applied ML or data systems, including classification with imbalanced data, sparse signals, and changing patterns.
- Hands-on, pragmatic approach balancing speed, accuracy, and maintainability.
Nice to have
- Familiarity with knowledge graphs, network analysis, or entity linking.
Pay
$175K – $210K USD base salary
Tools
KYB, knowledge graphs, LLMs
AI focus
Use modern AI tools, including LLMs where appropriate, to generate better features and labels; build AI-driven applications for customer workflows.
Model-written summary · the original posting is authoritative