Data Scientist

San Francisco, California
Data Science

Who you are

    • M.Sc. or Ph.D. in Machine Learning, Computer Science, or related field preferred
    • You have worked at an early-stage startup, huge plus if in security, fraud or related industries such as financial or e-commerce
    • You have worked professionally with machine learning for at least 4 years
    • You have experience implementing machine learning systems at scale in Scala, Java, Python or similar
    • You have experience with data processing and storage frameworks like Kafka, Cassandra, Spark, Hadoop, Storm. Experience in streaming is a big plus

What you'll do

    • Write and ship production code on a daily basis
    • Be part of designing Castle’s next generation risk models from scratch
    • Get to know customers to understand how to solve their pains through machine learning
    • Become an expert in techniques used to compromise user accounts and implement ways to thwart them
    • Be a part of a close-knit team


· Flexible vacation – take time off when you need it
· 10 year post-termination option exercise window vs the industry standard 90 days
· 100% medical/vision/dental insurance coverage
· Commuter benefits
· 401k

Castle’s culture is one that strongly values diversity and drive. We want to work with people of different backgrounds and different paths in life, and we trust our team members to make smart decisions.