Benjamin Cohen

Co-led rollout of a unified design system adopted by 6+ product teams and redesigned the Student Loan Refinancing funnel; implemented A/B experiments that improved conversion ~3%, driving an estimated $12M monthly revenue lift.

Taught modern full-stack development and rebuilt assessments with an automated GitHub Actions grading pipeline, reducing assessment turnaround from days to seconds and improving student feedback velocity.

Owned frontend surfaces for a senior-care platform (marketing, ops, consumer mobile) and implemented unit, integration, and e2e testing integrated with CI/CD to enable rapid, stable releases.

Delivered a full redesign of flagship sites and checkout flow for millions of annual users and introduced Jest and Cypress test coverage to ensure feature parity during site architecture transition.

Delivered lectures and led curriculum migration from Angular 1.x to React, mentoring hundreds of engineers and supporting bootcamp growth prior to acquisition.

Developed internal UI tools to enable support engineers to train early AI models for Cortana, contributing to tooling for Windows and Office troubleshooting flows.

Contributed to the design of a statically-typed functional scripting language with full type inference, implementing language components in Haskell.

Built an NLP classifier for hotel review fraud detection, improving model accuracy from 89% to 94% using NLTK and scikit-learn.

Grade: GPA 3.7 / 4.0

Activities and societies: Upsilon Pi Epsilon

Bachelor of Science in Computer Science with a 3.7 GPA and membership in Upsilon Pi Epsilon.