My Experience & Years of Education

2009 – 2013

University of Tokyo

Bachelor of Arts in Linguistics and English Language Teaching. Study abroad at University of Edinburgh in applied linguistics. Research on second-language writing and error correction. Certified ESL instructor (CELTA).

Professional Experience

2014 – 2020

Duolingo

Senior learning scientist and content designer for English learning paths. Designed exercises for grammar, vocabulary, and writing at multiple proficiency levels. Led localization and tone adaptation for Japanese and other learner markets.

Now My Work Station

2021 – present

Nexsas

Owns product and content for rephrasing, tone adjustment, and language-level features. Ensures outputs respect learner level, dialect, and register. Collaborates with research and localization on quality and fairness metrics.

Responsibilities

• Design rephrasing and tone controls for multiple languages and registers
• Define quality standards and evaluation for non-native and learner content
• Work with ESL educators and learners to validate usefulness and clarity
• Maintain style and safety guidelines for multilingual outputs