Takuya Kitazawa

  • Product developer with 10+ years in startups, Big Tech, non-profit, and freelancing.
  • Focused on full-stack development, data-driven solutions, and product management for scalable outcomes.
  • Global collaborator in teams, open source, research, mentorship, and social good.

Work

2022/09 – Present

Freelance Software Developer

Self-employed in British Columbia, Canada

Python Google Cloud Apache Beam Data Engineering Natural Language Processing

Enabling individuals and small businesses (up to 150 people) to transform data into actionable insights through analytics pipelines, ML/NLP models, and customer-facing applications.

Services: Full-stack development, data science consulting, product management, mentorship and training.

Learn more at takuti.me/services.

2025/01 – Present

Acting ICT Director

2023/08 – 2024/12

Information and Communication Technology Advisor

Emerge Livelihoods (formerly Mzuzu Entrepreneur Hub), Mzuzu, Malawi

C# .NET Digital Marketing International Development Leadership Corporate Strategy

Canadian international volunteer through World University Service of Canada, advancing equitable ICT access in Malawi. Featured in "Spotlight on Takuya: An Uplifting Volunteer Experience."

  • Assessment: Conducted organization-wide ICT capacity assessment and strategic recommendations.
  • Training: Trained 19 Malawian youth (9F, 10M, aged 18-31) in 3-month Python programming course.
  • Optimization: Improved Flask web application achieving 50% Lighthouse Performance gains.
  • Development: Led Android e-learning app development and Google Play launch.

Current Role: Remote management of 5-10 professionals, strategic technology oversight.

2021/08 – 2022/08

Software Development Engineer - Personalization

Amazon, Vancouver, BC, Canada

TypeScript Scala Python AWS Apache Spark Apache Airflow Recommender Systems

Recommender Systems: Developed Amazon's "Buy Again" repeat purchase recommendation system, implementing frontend components and backend data pipelines.

2020/10 – 2021/08

Senior Product Manager

2021/02 – 2021/08

Treasure Data (Canada), Vancouver, BC, Canada

2020/10 – 2021/02

Treasure Data, Tokyo, Japan

Python Data Visualization Predictive Modeling Digital Marketing Product Management

Managed product development in digital marketing, analytics, and ML: data visualization, A/B testing, predictive customer scoring.

Developed solution templates within Treasure Boxes ecosystem to enable strategic customer data use.

2020/02 – 2020/09

Product Manager

2019/04 – 2020/01

Staff Engineer

2018/08 – 2019/03

Senior Engineer

Arm, Tokyo, Japan

(Spin-off Treasure Data as an independent organization)

Python Apache Hive IoT Data Science Product Management

Engineering: Advanced big data, ML, and IoT integration across retail, gaming, and media. Led Python SDK development for enterprise analytics platform.

Product Management: Coordinated multi-regional teams for customer data platform, contributing to "Strong Performer" in Forrester Wave™ Customer Analytics Technologies Q3 2020. Co-led multi-touch attribution solution with Arm Research.

2017/02 – 2018/07

Data Science Engineer

Treasure Data, Tokyo, Japan

(Acquired by Arm)

Java Apache Hive Apache Spark Ruby on Rails

Contributed to Apache Hivemall, a scalable ML library for Apache Hive and Spark.

Led development of out-of-the-box ML solutions, managing full lifecycle from analysis to customer onboarding.

2015/08 – 2016/06

Part-time Software Engineer

Rakuten Institute of Technology, Tokyo, Japan

Python PHP Recommender Systems

Algorithm Research: Developed recommendation algorithms for online golf booking service. Conducted assessments and proposed improvements based on baseline study.

2012/02 – 2013/02

Part-time Software Engineer

HANASAKE PICTURES, Fukushima, Japan

Objective-C PHP Image Processing

Mobile & Web Development: Developed PHP applications for avatar-based social networking and iOS app for virtual trial fitting using Poisson Image Blending.

2011/10 – 2013/03

Part-time Research Assistant / Web Developer

The University of Aizu, Fukushima, Japan

Ruby on Rails Data Visualization GIS

Research Application Development: Led development of Ruby on Rails web application for regional weather monitoring with interactive geospatial data visualization using d3.js.

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Education

2015/04 – 2017/03

Master of Information Science and Technology

The University of Tokyo, Tokyo, Japan

Thesis: Persistently Cold-Starting Online Item Recommendation for Implicit Feedback Data | GPA: 4.0 | Credential: WES Verified

Experience: Student volunteer RecSys 2016, ML Summer School Kyoto 2015

R&D Intern Silver Egg Technology: Applied novel recommendation algorithms

ML Intern Treasure Data: Apache Hivemall UDFs, anomaly detection system

2011/04 – 2015/03

B.S. in Computer Science and Engineering

The University of Aizu, Fukushima, Japan

Thesis: User Modeling in Folksonomies: Relational Clustering and Tag Weighting | GPA: 3.97

Honors: President's Award (Summa Cum Laude, 2015), Dean's List (2012–2015), Best Paper Prize IEEE Sendai (2014), Innovative Award Business Plan Competition (2012)

Activities: TA Numerical Analysis (20+ students), Security & Programming Camp (2011)