CJ Chang

Chief Product Officer

麻布數據科技

九月 2021 - 九月 2023
Taipei, Taiwan

Achievements
- Optimize new user onboarding and notification flow of Moneybook (麻布記帳), increasing the 7-day retention rate by 10%.
- Sustain monthly growth of 10~22% in active users for Invos (發票存摺).
- Improve the subscription service for Moneybook (麻布記帳), achieving a YoY revenue growth of 140%.
- Reconstructed team organizational processes and established collaborative methods for the company's product strategy and product roadmap.

Responsibility
- Lead the development of three successful products (Moneybook, Invos and Invos data) to build up product strategy and business model discovery to align company mission and strategies.
- Plan and organize the structure of the Product team to align the company's goal and business model.
- Conduct product strategy and roadmap discussion process with cross-functional teams from scratch.
- Define Product strategy key results and metrics.
- Manage and mentor a team of five product managers, driving collaboration and innovation to deliver high-quality products.

Japan Product Owner

Gogolook Co., Ltd

六月 2020 - 九月 2021
Taipei, Taiwan

Product
- Whoscall is a popular mobile app that offers caller identification, call blocking, and spam filtering services to over 80 million users worldwide. The app is available in 31 countries and has a database of over 1.6 billion numbers, including Taiwan, Korea, Hong Kong, Japan, Thailand, and Brazil.

Achievements
- Built up a Japan team from scratch, Increased subscription revenue by 150% in Japan within one year.
- Increased the LTV by 172% through optimized the subscription CVR and adjusted pricing strategy.

Responsibility
- Owned and guided the go-to-marketing and Product strategy in Japan to align the company's global expansion strategy.
- Defined key results and metrics for Product Roadmap and OKR to align Product strategy.
- Led a 12+ members product development team with cross functional teams including Engineering, Marketing, Data, QA, BD, Product design and Country partners. 
- Managed and mentored product team members.

Head of Whoscall

Gogolook Co., Ltd

六月 2017 - 六月 2020
Taipei, Taiwan

Senior Product Manager

Gogolook Co., Ltd

一月 2014 - 六月 2017
Taipei, Taiwan

Achievements
- Increased the revenue of Whoscall iOS app by 5 times within half a year.
- Increased the in-app purchase conversion rate in Japan by 80%.
- Optimized Whoscall iOS app flow and increased its active users by 20%.
- Built Whoscall iOS from scratch (the app currently has 2M monthly active users)
- Led the first team to adopt agile development flow in the company.

Responsibility
- Planned the product and business strategy of Whoscall iOS app as a product owner.
- Executed product experiments design (e.g.A/B testing) and concepts validation.
- Led a 5+ members product team to deliver products through agile development.

Android Developer

Foxconn

六月 2013 - 一月 2014
Taipei, Taiwan

Achievements
- Developed 2+ internal Android projects and released them on Google Play.

Responsibility
- In charge of Android development for internal projects at Foxconn Information Ergonomics Center.

User Experience Researcher

Foxconn

十一月 2012 - 一月 2014
Taipei, Taiwan

Achievements
- Executed 2+ user research projects (Mobile apps).
- Supported other business units and executed 3+ usability testing projects (Smart TW, Mobile Apps) in China.
- Analyzed ergonomics research papers and proposed product design suggestions for the mechanism unit.

Responsibility
- Served as a consulting unit at Foxconn Information Ergonomics Center and supported UX/UI projects for other business units.