Kim Jangwook
Renew day by day!
Hello, welcome to "EffiFlow". I am Kim Jangwook, the operator of this blog. Here, we introduce the latest technology trends and innovative ideas.
"EffiFlow" is a space for all those who have a passion and curiosity for technology. We aim to explain complex and difficult technology topics in an easy-to-understand manner and provide information so that more people can access new technology.
Follow the latest technology trends with me and learn about the technological innovations that will lead the future. I look forward to your interest and participation. Thank you!
Careers
SPIKA Inc.
Bravance Technologies Inc.
Connecty Inc.
Portfolio
My Projects
SSR Survey Analysis
Tech: Python, OpenAI API, LLM, Data Science
LLM-based Semantic Similarity Rating methodology for analyzing blog revisit intent. Conducted 225 evaluations with 15 diverse personas across 5 content categories, achieving ICC reliability of 0.833. Cost-efficient alternative to traditional surveys ($0.016 per evaluation vs $1-5).
気象情報取得システム
Tech: Svelte
A modern weather application built with Svelte framework, providing real-time meteorological data with a responsive user interface.
Let's Encrypt ドメインチェッカー
A tool for checking and managing Let's Encrypt SSL certificates for domains.
ドローン情報まとめ
Comprehensive information resource about drones, regulations, and best practices.
仕事に使えるライブラリー
A curated collection of practical libraries and tools for professional development work.
Works
Invoice Management System
Tech: Laravel, Vue.js, AWS
An application created to assist freelancers with invoice management.
- Profile management
- Billing partner management
- Invoice management
Dashboard
Tech: Fuel PHP, Laravel, Vue.js, AWS
A comprehensive system that manages company employees, clients, man-hours, sales, and subcontracts with dashboard visualization.
- Internal information management
- Man-hour management
- Billing management
- Report management
体験くん
Tech: Fuel PHP, jQuery, AWS
A system that manages information on various trial lessons and classrooms, allowing follow-up status monitoring of students.
- Trial lesson and related information management
- Facility management
会員・セミナー管理システム
Tech: Laravel, React, Marketo, AWS
A system that manages online and offline seminars and events held throughout Japan, with integration to marketing automation systems.
- Membership management
- Email management functions
- Seminar management
CDP (Customer Data Platform)
Tech: Python, Nuxt.js, GCP, AWS
A system that supports the construction of a data warehouse to store client data and enables website personalization.
EFO (Entry Form Optimization)
Tech: TypeScript, GCP
A service designed to reduce form-filling user stress and prevent abandonment through intelligent form-filling support.
comeet
Tech: Fuel PHP, Nuxt.js, AWS
A service that provides online sessions and lessons with modern web technologies.
REMO TAX: 免税電子化
A tax-free procedure agency service for retail stores. Simplifies the complex duty-free process through smartphone-based operations.
- Simple processing: Staff only need to photograph passports and receipts
- Fast processing: Average 1-2 minutes per transaction
- Low cost: Initial fee of 10,780 yen, no monthly fees
- No specialized knowledge required