Hayata Suenaga

Software Engineer

Hi! I'm Hayata, a software engineer with over three years of industry experience, much of which I spent at Expensify working on systems serving 15M+ users. Based in San Francisco and sometimes in Japan.

At Expensify, I led critical projects and managed engineering teams. Now, I'm building Eisuke, a language learning platform that combines web and mobile applications to help people master English vocabulary.

I focus on identifying common patterns that can be solved through existing solutions, letting teams ship faster by focusing purely on business logic. My recent interest is in natural language processing and its applications in the EdTech space.

Work History

Eisuke L.L.C.

August 2024 - Present

Founder & Software Engineer

  • Architected and launched complete learning management system from concept to deployment
  • Built web portals for teachers and students and cross-platform mobile apps using Turborepo, Next.js, Expo/React Native

Expensify

February 2023 - August 2024

Software Engineer

  • Led development initiatives within 50-person engineering team maintaining platform generating $151M annual revenue
  • Managed team of 10 contract engineers and co-led TypeScript migration of 350,000+ lines of code
  • Co-led QuickBooks Online integration project facilitating transition for 15M+ users

Dendron

June 2022 - October 2022

Software Engineer Intern

  • Implemented core features for document parsing engine and built custom VSCode extension components
  • Collaborated with CEO on product roadmap and feature prioritization

Education

Centre College

August 2019 - May 2022

Bachelor of Science in Computer Science

  • Founder's Scholarship recipient | Dean's List (4 terms)
  • Relevant Coursework: Data Structures (UC Berkeley CS 61B), Statistics, Discrete Structures
  • Developed comprehensive business plan that became foundation for Eisuke L.L.C.