Currently building at Fast Retailing · Tokyo

Ryandy Baghaskoro

Building backend systems, data platforms, and cloud infrastructure at scale.

9+ years · Engineering Manager & IC · SEA + Japan

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About

Software engineer with nearly a decade building high-traffic backend systems across Southeast Asia and Japan. Led catalog enrichment engineering at Rakuten; now building retail technology at Fast Retailing in Tokyo.

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Experience

  1. 2025 —

    Fast Retailing · Software Engineer

    Global retail technology, Tokyo

  2. 2020 — 2025

    Rakuten · Engineering Manager, Catalog Enrichment

    Led the group enriching catalog data powering search and recommendations across Rakuten commerce

  3. 2017 — 2020

    Traveloka · Software Engineer

    Flight search & booking platform — 15+ microservices at high traffic

Expertise

Backend Engineering

Robust, high-traffic services designed for resilience and maintainability.

  • distributed systems
  • microservices
  • APIs

Data Platforms

Enrichment, search, and analytics pipelines that make data usable at scale.

  • stream processing
  • search
  • analytics

Cloud Infrastructure

Production-grade infrastructure, automated and observable from day one.

  • infrastructure as code
  • orchestration
  • observability

Stack

Languages
Java Python Go
Cloud
GCP AWS Kubernetes Terraform
Data
Apache Beam Dataflow BigQuery Redis

Let's connect

Open to interesting conversations about backend systems, data platforms, and engineering in Japan.

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