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SMALL WORLD / Work in Japan? Tech Stack

IT staffing platform connecting engineers worldwide to opportunities in Japan

IT Services and IT Consulting Tokyo 51–200 employees Founded 2019 Privately Held

Small World matches foreign engineers with roles in Japan, backed by 13+ years of operational experience through CRAFTS Inc., a development shop that has built products with international technical talent. The stack spans full-stack web (React, Next.js, GraphQL, Spring/Java) and infrastructure (Kubernetes, Kafka, Terraform), with active hiring concentrated in engineering and product — signaling product-led scaling rather than pure recruitment-shop margins. Pain points around API usability, talent sourcing, and secure system design indicate the platform is moving beyond job board mechanics toward actual developer infrastructure.

Tech Stack 79 technologies

Core StackJira Confluence Java JUnit GraphQL nginx Docker Kubernetes Couchbase Redis Kafka Jenkins Linux React Next.js Redux JavaScript TypeScript .NET C# Python SQL Server Kotlin Spring Framework Git Subversion Apache Memcached Redux Toolkit Azure+46 more

AdoptingTerraform Ansible OpenAPI Chef

What SMALL WORLD / Work in Japan? Is Building

◆Challenges

Maintaining high availability
Usability of apis
Secure system design
Improving engineering productivity
Sourcing specialized it talent
Meeting client hiring needs
Communication with api users
Storage efficiency
Specialist candidate sourcing
Tech development awareness

▲Active Projects

Rakuten fashion android application development
Mobile app development
Software license management
Automation of manual production operations
Monitoring stack improvement
Automation for productivity
Api platform roadmap
Rakuten technology conference
Okrs
Data platform for data processing applications

Hiring Activity

Accelerating25 roles · 10 in 30d

Department

Engineering

13

Product

4

HR

3

Ops

2

Seniority

Mid

12

Senior

10

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About SMALL WORLD / Work in Japan?

Small World is a staffing platform founded in 2019 that recruits and places engineers from overseas into technical roles at Japanese companies. The organization operates from Tokyo with 51–200 employees. The team works closely with CRAFTS Inc., a software development group company established in 2008, which has spent over a decade hiring and managing international engineering teams on actual product delivery. Small World's model combines recruiter-led placement with product tooling: active development on API platforms, license management, and operational monitoring suggests the business is evolving from pure labor matching into a managed services or platform play. Hiring velocity is accelerating, with most open roles concentrated in engineering and mid-to-senior levels.

HeadquartersTokyo

Company Size51–200 employees

Founded2019

Hiring MarketsJapan

Frequently Asked Questions

What is Small World's tech stack?

Primary languages: Java, JavaScript, TypeScript, Python, C#, Kotlin. Backend: Spring Framework, GraphQL, Kafka, Redis, Couchbase. Frontend: React, Next.js, Redux. Infrastructure: Kubernetes, Docker, Azure, Terraform, Ansible. CI/CD: Jenkins. Version control: Git, Subversion.

What is Small World working on?

Active projects include Rakuten Fashion Android app, mobile app development, API platform roadmap, software license management, production automation, and monitoring stack improvements. The company is also addressing engineering productivity and API usability challenges.