Hi, I'm Eijn

Working as an engineer at an education company while also developing apps independently. I'm passionate about solving small everyday problems through simple, useful applications.

Chiba, Japan
Eiji's Profile
7 Years
Programming Experience
6.5
IELTS
2 Countries
Study Abroad

What Drives Me

These core values guide my daily development and career direction.

Simple is Best

I pursue simple solutions that anyone can use intuitively, eliminating unnecessary complexity.

Accessible to Everyone, Globally

I build products that are accessible to everyone worldwide, transcending language and cultural barriers.

Nurture Like Your Own Child

I nurture my products like my own children, paying attention to every detail and continuously improving them with care.

Skills & Technologies

Tools and technologies I use to bring ideas to life.

Next.jsFrontend
85%
DjangoBackend
80%
FastAPIBackend
75%
Spring BootBackend
70%
SQL ServerDatabase
80%
AzureCloud
75%
LangGraphAI
85%
PythonLanguage
90%
JavaLanguage
75%
TypeScriptLanguage
80%
CryptographyMath
85%
Mathematical AnalysisMath
80%

Professional Experience

My journey in software development and entrepreneurship.

Engineer (AI Promotion)

Education Company

PresentJapan

Leading AI promotion initiatives, developing AI agent systems centered on LangGraph. Driving AI adoption in education to improve operational efficiency and create new value.

Key Achievements:

  • Design and development of AI agent systems using LangGraph
  • Leading company-wide AI adoption projects
  • Creating AI use cases in the education sector
  • Contributing to improved AI literacy across the team

Education

Mathematical Sciences (Cryptography Major)

Yamaguchi University

Bachelor's Degree

Majored in cryptography in the Department of Mathematical Sciences. Gained an international perspective through study abroad in the Philippines and the United States, where I discovered Computer Science.

Highlights:

  • Philippines study abroad: TOEIC score improved from 300 to 850
  • US study abroad: Studied mathematics for one year
  • Discovered the path to programming through Computer Science
  • Gained deep understanding of cryptography theory
About | Eijn Portfolio