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簡煜翰
Software Engineer
Email: [email protected]
Phone: 0922613693
Location: Taipei, Taiwan
Frontend developer with 6.5 years of experience building scalable and efficient web solutions. Skilled in React.js, Next.js, and TypeScript, with a strong focus on solving real-world problems and optimizing development speed. Passionate about delivering practical, high-impact solutions that drive product success.
Work Experience
May 2018 - October 2024
Senior Frontend Developer - Mdata Group (Invos, Moneybook App)
Key projects
Enterprise SaaS System – Built a scalable data system from 0 to 1 for 10+ enterprise clients, processing million-level data calculations with high efficiency and reliability.
Tech Stack: Next.js, XState, Storybook, MSW, Jest + React Testing LibraryBackend system for all apps in Mdata group – Conducted internal user research, participated in system design, and contributed to rebuilding the backend system, improving efficiency and maintainability by saving 40% of time.
Tech Stack: Next.js, TypeScript, Zod, Monorepo (Turborepo), XState, Storybook, MSW, Jest + React Testing Library, Docker, Git ActionsWebview, websites and blogs for all products – Delivered webviews for INVOS and Moneybook apps, developed well-structured SEO-optimized websites and blogs and enabling user behavior tracking via GA & GTM for marketing.
Tech Stack: React.js, TypeScript, Firebase, Contentful, Google App Script, GA, GTMAdopted visual-based modules and documents, making onboarding easier — new developers contributed within 1 week.
Tech Stack: Notion, XState, StorybookMoneybook Desktop App with stock data integration (Side Project) – Developed an Electron-based app, enabling users to bypass stock website data crawling restrictions.
Tech Stack: Electron, Next.js (Node.js for web spider)
Impact & Achievements
Accelerating Development Speed & Scalability
Enabled MVP development in 5-8 days, with rapid prototyping in 3 days, reducing time-to-market for internal projects.
Built a library of reusable UI components (Storybook) and used MSW for API mocking, standardizing design and improving developer efficiency.
Scalable Frontend Ecosystem & Stability
Implemented TypeScript + Zod, reducing API integration errors by 30% and ensuring data consistency.
Optimized multi-system management using Monorepo architecture, boosting code sharing and maintainability.
Adopted XState for state management, simplifying complex flows and making debugging easier.
Solution-Oriented Thinking & Cost Reduction
Delivered 30% cost savings by integrating third-party services (Contentful as CMS, Google Apps Script & Firebase), reducing backend infrastructure needs.
Skills
Frontend: React.js, Next.js, TypeScript, XState, Zod, Storybook, MSW, Jest + React Testing Library
Backend & Tools: Docker, Monorepo (Turborepo), Firebase, Google Apps Script, Contentful, Electron
Projects Demo
InvosData website, Link: https://invosdata.com/
InvosData SaaS system
Featuring 5-6 modules that provide market insights, each equipped with charts to help customers make informed business decisions.
Backend system for all apps in Mdata group
As the app grows, we offer services beyond invoice collection, including missions and e-commerce. The operation team can manage and configure all functions within this backend system.
Webview
INVOS App
This service integrates with third-party providers to accumulate invoice points, offering users additional ways to participate in invoice-related reward programs outside INVOS app.
5 Year Financial Forecasting
This module provides users with a five-year projection based on their account balances, assets, and stock holdings. By analyzing historical data and market trends, the system estimates future changes in wealth, helping users make informed financial decisions.
Education
2014 - 2016
National Chung Hsing University
Master Degree,
Management Information Systems
2010 - 2014
National Chung Hsing University
Bachelor Degree,
Management Information Systems
簡煜翰
Software Engineer
Email: [email protected]
Phone: 0922613693
Location: Taipei, Taiwan
Frontend developer with 6.5 years of experience building scalable and efficient web solutions. Skilled in React.js, Next.js, and TypeScript, with a strong focus on solving real-world problems and optimizing development speed. Passionate about delivering practical, high-impact solutions that drive product success.
Work Experience
May 2018 - October 2024
Senior Frontend Developer - Mdata Group (Invos, Moneybook App)
Key projects
Enterprise SaaS System – Built a scalable data system from 0 to 1 for 10+ enterprise clients, processing million-level data calculations with high efficiency and reliability.
Tech Stack: Next.js, XState, Storybook, MSW, Jest + React Testing LibraryBackend system for all apps in Mdata group – Conducted internal user research, participated in system design, and contributed to rebuilding the backend system, improving efficiency and maintainability by saving 40% of time.
Tech Stack: Next.js, TypeScript, Zod, Monorepo (Turborepo), XState, Storybook, MSW, Jest + React Testing Library, Docker, Git ActionsWebview, websites and blogs for all products – Delivered webviews for INVOS and Moneybook apps, developed well-structured SEO-optimized websites and blogs and enabling user behavior tracking via GA & GTM for marketing.
Tech Stack: React.js, TypeScript, Firebase, Contentful, Google App Script, GA, GTMAdopted visual-based modules and documents, making onboarding easier — new developers contributed within 1 week.
Tech Stack: Notion, XState, StorybookMoneybook Desktop App with stock data integration (Side Project) – Developed an Electron-based app, enabling users to bypass stock website data crawling restrictions.
Tech Stack: Electron, Next.js (Node.js for web spider)
Impact & Achievements
Accelerating Development Speed & Scalability
Enabled MVP development in 5-8 days, with rapid prototyping in 3 days, reducing time-to-market for internal projects.
Built a library of reusable UI components (Storybook) and used MSW for API mocking, standardizing design and improving developer efficiency.
Scalable Frontend Ecosystem & Stability
Implemented TypeScript + Zod, reducing API integration errors by 30% and ensuring data consistency.
Optimized multi-system management using Monorepo architecture, boosting code sharing and maintainability.
Adopted XState for state management, simplifying complex flows and making debugging easier.
Solution-Oriented Thinking & Cost Reduction
Delivered 30% cost savings by integrating third-party services (Contentful as CMS, Google Apps Script & Firebase), reducing backend infrastructure needs.
Skills
Frontend: React.js, Next.js, TypeScript, XState, Zod, Storybook, MSW, Jest + React Testing Library
Backend & Tools: Docker, Monorepo (Turborepo), Firebase, Google Apps Script, Contentful, Electron
Projects Demo
InvosData website, Link: https://invosdata.com/
InvosData SaaS system
Featuring 5-6 modules that provide market insights, each equipped with charts to help customers make informed business decisions.
Backend system for all apps in Mdata group
As the app grows, we offer services beyond invoice collection, including missions and e-commerce. The operation team can manage and configure all functions within this backend system.
Webview
INVOS App
This service integrates with third-party providers to accumulate invoice points, offering users additional ways to participate in invoice-related reward programs outside INVOS app.
5 Year Financial Forecasting
This module provides users with a five-year projection based on their account balances, assets, and stock holdings. By analyzing historical data and market trends, the system estimates future changes in wealth, helping users make informed financial decisions.
Education
2014 - 2016
National Chung Hsing University
Master Degree,
Management Information Systems
2010 - 2014