About Me

๐Ÿ‘‹ Hello, I’m Ryan!

I’m a Software Engineer based in Tokyo, Japan, currently working at Fast Retailing. With nearly a decade in the tech industry, I’ve had the privilege of working with some of Southeast Asia and Japan’s leading tech companies.

What I Do

I’m deeply passionate about backend engineering โ€” building robust, scalable systems that power modern applications. I also have extensive experience in Data Engineering and Cloud Infrastructure, particularly with GCP and AWS.

There’s something incredibly satisfying about architecting systems that can handle millions of requests while remaining resilient and maintainable.


๐Ÿ’ผ Career Timeline

Fast Retailing

Software Engineer ยท Jul 2025 - Present
๐Ÿ“ Tokyo, Japan

Building the future of global retail technology.


Rakuten

Engineering Manager, Catalog Enrichment ยท May 2024 - Jun 2025
๐Ÿ“ Tokyo, Japan

Managing Catalog Data Enrichment Engineering Group, building solutions to enrich catalog data to improve search, recommendations, and overall user experience.

Data Engineer ยท Dec 2020 - Jun 2025
๐Ÿ“ Tokyo, Japan

Built Catalog Item Enrichment for Rakuten Group Commerce Business, improving data searchability and analysis. Managed team infrastructure and architecture.

Tech: Java, Python, Kubernetes, GCP, Apache Beam, Dataflow, VueJS


Traveloka

Software Engineer ยท Sep 2017 - Dec 2020
๐Ÿ“ Jakarta, Indonesia

Worked with the Transport Team building Flight Search and Booking Platform, managing 15+ microservices with high traffic. Early engineer on the cross-selling feature enabling cross-product purchase flows.

Tech: Java, AWS, Redis, Memcached, Terraform, DynamoDB, RDS


OnlinePajak

Junior Software Engineer ยท Mar 2017 - Aug 2017
Junior Web Developer (Intern) ยท Mar 2016 - Mar 2017
๐Ÿ“ Jakarta, Indonesia

Developed tax filing solutions for Indonesian SMEs, helping businesses streamline their corporate tax obligations.


๐ŸŽ“ Education

Universitas Bina Nusantara (BINUS)

Bachelor’s Degree in Computer Science ยท 2013 - 2017


๐Ÿ›  Tech Stack

Languages: Java, Python, Go
Cloud: GCP, AWS, Kubernetes
Data: Apache Beam, Dataflow, BigQuery
Tools: Terraform, Docker, Redis


๐ŸŒ Languages


Let’s Connect

Follow me on Twitter / X for my daily journey, tech insights, and random thoughts on software engineering.

Connect with me on LinkedIn for professional updates!


This website is built with Hugo โ€” a fast and flexible static site generator that I absolutely love.