Studied life science and worked on software for protein-structure analysis, comparing structures through inter-carbon distances and automating structural-data retrieval and processing from sources including UniProt and PDB.
01 / ABOUT — BYAKKO KONDO / TOKYO, JAPAN
ENGINEER,DESIGNER, BUILDER.
I work across product development, web engineering, research software and workflow automation — taking ideas from requirements and structure through design, implementation and operation.
ENGINEER / CREATIVE DEVELOPERTOKYO, JAPAN
02 / PROFILE
IDEA TO
IMPLEMENTATION.
I build products from idea to implementation — mobile, web, research software and automation.
My background began in life science at Gakushuin University. In the Okada Lab, I worked on protein-structure analysis using inter-carbon distances and developed software to automate parts of the structural-data workflow.
After gaining practical experience through レターファン株式会社 and Drumroll株式会社, I moved into freelance engineering. Today my work ranges from mobile products and corporate websites to commerce, backend integrations and automation. I prefer to stay involved across the full path from understanding the problem to shipping and maintaining the final system.
Alongside client work, I develop my own products including CaRoot. Since August 2026, I have also served as a director of NPO Proud, supporting its IT and web initiatives and helping coordinate development of a monitoring service for older adults.
03 / JOURNEY
WHERE THE WORK
CAME FROM.
UNIVERSITY → FREELANCE / RESEARCH / PRODUCT / NPO
Gained practical development experience through レターファン株式会社 and Drumroll株式会社 before moving into independent client work.
Designing and building production websites, commerce experiences, automation workflows and digital systems for clients. Work spans requirements, information architecture, UI/UX, frontend and backend implementation, deployment and ongoing operation.
Building CaRoot, a personal calorie and nutrition management product, from planning and UI/UX through mobile development, backend systems, AI features, data design and release operations.
Supporting IT and web initiatives as a director, including website development and a monitoring-service project for older adults, with responsibility spanning product and project coordination.
04 / WHAT I DO
FROM REQUIREMENTS
TO OPERATION.
- 01PRODUCT PLANNING AND INFORMATION ARCHITECTURE↗
- 02UI/UX AND FRONTEND ENGINEERING↗
- 03MOBILE APPLICATION DEVELOPMENT↗
- 04BACKEND AND API INTEGRATION↗
- 05RESEARCH SOFTWARE AND DATA PIPELINES↗
- 06WORKFLOW AUTOMATION↗
- 07DEPLOYMENT, SEO AND ONGOING PRODUCT OPERATION↗
05 / CAPABILITIES
THE STACK
IN GROUPS.
- TypeScript
- Python
- Go
- Next.js
- React
- GSAP
- React Native
- Expo
- Supabase
- FastAPI
- PostgreSQL
- Docker
- Stripe
- n8n
- Claude Code
- Codex
06 / START A PROJECT