Duc Nguyen

I run retention marketing and ecommerce operations across a portfolio of DTC brands — email, SMS, and the data underneath them.

I write about what the numbers actually say, including the parts that went wrong.

Selected work

• TODO: một dòng kết quả đo đượcRunning email and SMS across a four-brand DTC portfolioShared retention infrastructure across four women's accessories brands, with separate P&Ls and a reporting layer that reconciles against platform billing.

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Latest writing

• Your SMS cost data is probably wrong, and your ROI is wrong with itA warehouse table quietly dropped 25 of 31 days for one store. Every cost number built on it was understated for two months before anyone checked.15 Sept 2026
  • SMS
  • Data
  • Post-mortem

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