Indie Developer / Bioinformatics & AI Engineer
kimura512
Grow Your Business Exponentially
An indie developer who loves science and humor
Who am I
Registered Information Security Specialist (RISS) #019624. Ph.D. in Life Sciences, former researcher turned indie developer. Building SaaS, mobile apps, AI services, Chrome extensions, and more. A single father raising a lovely daughter, thinking about what I can do for the next generation to thrive.
What I can do
- Indie Development
SaaS / Web apps / LP / Blog / Website / Chrome extensions / Mobile apps - from planning to release, etc.
- AI / LLM Integration
Text / Voice / Image / Character generation / RAG / Classification / RPA / Agent development, etc.
- Bioinformatics Background
Genomics / RNA-seq / Single-cell analysis / Microbiome, etc.
Tech Stack
Works
Suiai Club Map
✓Members-only bar map app for "Naotaka Sakaba" online salon (94K+ YouTube subscribers).
NextRefer
✓SaaS platform for high-quality referrals and rewards.
ImagineBreak
✓Chat with AI characters on LINE.
AI-1 GRANDPRIX Podcast
✓100% AI-automated comedy podcast: script, voice, and distribution.
Ctrl+Enter Sender
✓Chrome extension: Enter for newline, Ctrl+Enter to send. Works with ChatGPT, Slack & more.
FyreFighter
✓Chrome extension that prevents SNS posts from going viral by detecting potential risks.
Coming Soon
WIPNew project in development
Blog
How to Choose Commercial-Use AI APIs for Small-Scale Services (2026 Edition)
A must-read for indie developers! A comprehensive guide to AI API providers like Cerebras, Groq, and Cloudflare Workers AI that offer free tiers while allowing commercial use. Includes fallback strategies and use-case compatibility.
Why JavaScript is the only choice for learning programming now
Web, Server, AI, App Dev... JS opens all doors.
(Draft) Why I quit being a salaryman and became an indie developer
The story of my transition from bioinformatics researcher to indie developer.
About
Basic Information
Name
Shingo Kimura
Trade Name
NIJURASEN
Location
Yokohama, Kanagawa
Biography
Majored in Life Sciences, obtained a Ph.D. in Life Sciences. Passed IPA Fundamental IT Engineer, Applied IT Engineer, and Registered Information Security Specialist exams
Worked as a bioinformatics researcher engaged in genomics analysis and AI development
Became an independent indie developer and freelance engineer, developing SaaS, Chrome extensions, and mobile apps
Contact
Send a message
For work inquiries, collaboration, career consultations, etc.