Zucca Oiwa

Senior Data Analyst

Toronto, ON, Canada
+1 647-787-1547
Toronto, ON, Canada


  • Experienced data analyst who has a background working in e-commerce and financial institutions.
  • Hands-on experience in both data analysis and marketing.
  • Strong in finding sharp insights and making decisions backed by data.


Software Development Python, C, SQL, Flask, JavaScript, HTML, CSS, Bootstrap, Flexbox, Node, Express, NodeJS
Data Analytics Pandas, Google Analytics, Google Search Console, PowerPoint, Excel
Marketing CRM, SEO, customer acquisition, email marketing, content writing
Project Management Requirement definition, progress management, market research
Language English, Japanese


Minma, Inc. Tokyo, Japan - Senior Data Analyst

February 2014 - PRESENT

Minma is Japan’s largest online platform for connecting individuals looking for household services from independent service professionals. I joined Minma as one of the founding members and started the marketing team and the data analysis team.

Senior Data Analyst

  • Data collection (SQL, Google Analytics, APIs), cleaning data(Python, Pandas), visualization (Google Sheets, Excel, Google Slides, PowerPoint), and reporting data to board members and stakeholders.
  • Collaborate with stakeholders across departments to plan and monitor the effectiveness of data-supported promotion activities.
  • Establish monitoring systems for marketing promotions, SEO, and corporate KPIs including sales, account numbers, churn rates, etc.
  • Help board members make strategic decisions with sophisticated and easy-to-understand reports.
  • Manage team KPIs and budget.

Marketing Associate

  • Conducted proposals, market analysis, requirements definition, and effectiveness analysis for business development.
  • Carried out market research, competitive research, and service design for product development.
  • A/B tested various UI/UX improvement tactics to enhance app downloads, prevent churn, and increase the number of repeats.
  • Designed and wrote content for owned media and email marketing.

Rakuten Securitie, Inc. Tokyo, Japan - Marketing

April 2010 - January 2014

I started my career at Rakuten, Japan's largest e-commerce company, and in particular worked at Rakuten Securities, one of Japan's leading online brokerage firms.

Marketing Associate

  • Analyzed and reported on investor trading trends with large data using RDB and SQL.
  • Defined requirements, managed progress, and launched projects to add new payment methods and to give trial mutual funds as a marketing promotion.
  • Designed, wrote, and measured the effectiveness of content for the investor newsletter and website.
  • Planned and facilitated seminars for customers both online and offline.


Ritsumeikan University, Kyoto, Japan - Master of Bioinformatics (Biology + Computer Science)

Master: April 2008 - March 2010
Bachelor: April 2004 - March 2008

Thesis: Quantitative proteome analysis of successive protein expression profiles during early embryogenesis in Caenorhabditis elegans.


CS50 2021 from Harvard University

Harvard University's introduction to the intellectual enterprises of computer science and the art of programming.

Skills: C, Python, HTML, CSS, JavaScript, Bootstrap, Flask, SQL, Algorithms, Data Structure

Course detail

The Web Developer Bootcamp 2021

A comprehensive online bootcamp for anyone who wants to learn how to build a web application from scratch.

Skills: HTML, CSS, JavaScript, Bootstrap, MongoDB, AJAX, Node, Express

Course detail