Summary
Simon Spicer is a Staff Data Scientist in Seattle with 15 years of experience turning mathematics and data into actionable solutions for large-scale content moderation and safety problems. Trained as a mathematician (PhD, University of Washington), he has held senior analytics and technical lead roles at Meta and Google before joining Reddit to focus on keeping communities safe. He blends rigorous statistical thinking, production-grade Python/SQL engineering, and measurement-focused product strategy to influence cross-disciplinary teams and scalable systems. Known for mentoring and building best-practice measurement frameworks, he’s comfortable moving from theoretical code (Cython/Fortran wrappers during his academic work) to high-impact production analytics. Quietly obsessive about hats, he pairs deep domain expertise with a practical, systems-oriented approach to gnarly, broadly scoped business problems.
15 years of coding experience
9 years of employment as a software developer
Doctor of Philosophy (PhD) Mathematics, Doctor of Philosophy (PhD) Mathematics at University of Washington
Bachelor of Science Honours (BSc Hons.) Mathematics, Bachelor of Science Honours (BSc Hons.) Mathematics at University of Cape Town
High School IEB Matric, High School IEB Matric at St. John's College, Johannesburg, South Africa
English, Afrikaans