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Rakuten Kobo Inc. Tech Stack

Digital reading platform spanning eReaders, apps, and self-publishing services

Computers and Electronics Manufacturing Toronto, Ontario 201–500 employees Founded 2009 Privately Held

Rakuten Kobo operates a multi-device reading ecosystem (eReaders, apps, web platform) serving 30M+ readers globally. The tech stack is infrastructure-heavy—GCP, AWS, Azure, Kubernetes, Terraform, Chef—paired with a modern ML/analytics foundation (Kubeflow, Airflow, MLflow, Feast, DVC). Active hiring heavily tilted toward engineering and marketing signals scaling of platform reliability and user acquisition, while pain points around cloud infrastructure gaps and manual ML workflows suggest internal tooling maturity lags infrastructure investment.

Tech Stack 57 technologies

Core StackC++ Linux Terraform AWS Kubeflow Apache Airflow Vertex AI MLflow SageMaker Prometheus Grafana Jenkins GitHub Actions GitLab CI/CD ArgoCD Docker Kubernetes Helm Python Qt Chef GCP Azure Argo Workflows AWS Step Functions DVC Arize Git LFS Feast Buildkite+26 more

What Rakuten Kobo Inc. Is Building

◆Challenges

Improving software underlying ereaders
Optimizing marketing automation utilization
Increase build and release efficiencies
Lack of foundational cloud infrastructure
Transitioning to hybrid cloud environment
Friction in platform usage
Design to display friction
Manual ml production processes
Balancing product goals and technical needs
Process inefficiencies

▲Active Projects

Automated test suite
Ereader devices
Improving software underlying ereaders
Advanced segmentation and personalization
Develop and maintain continuous integration/deployment pipelines
Gcp & hybrid cloud security architecture
Security assessment & review
Front-end web platform development
In-house design system expansion
Internal ml platform and mlo ps capabilities

Hiring Activity

Accelerating25 roles · 15 in 30d

Department

Engineering

10

Marketing

7

Data

3

Ops

2

Security

2

Product

1

Sales

1

Seniority

Senior

14

Mid

4

Director

2

Lead

2

Manager

2

Intern

1

Staff

1

Notable leadership hires: Fraud Lead

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About Rakuten Kobo Inc.

Rakuten Kobo is a digital reading service owned by Rakuten and based in Toronto. The company sells eReaders, a mobile/web reading app, and self-publishing tools to consumers and independent authors. With over 30 million active readers across devices and geographies, Kobo operates a complex product portfolio requiring coordinated hardware, software, and platform development. The company hires across Canada, Germany, Ireland, and Taiwan, with strongest engineering and marketing staffing.

HeadquartersToronto, Ontario

Company Size201–500 employees

Founded2009

Hiring MarketsCanada, Germany, Ireland, Taiwan

Frequently Asked Questions

What is Rakuten Kobo's tech stack?

C++, Qt, Linux, Terraform, Chef, GCP, AWS, Azure, Kubernetes, Helm, Docker, Python. MLOps tools include Kubeflow, Airflow, Argo Workflows, MLflow, DVC, Feast, and Vertex AI. CI/CD: Jenkins, GitHub Actions, GitLab CI/CD, Buildkite, ArgoCD.