Backend Engineer with Scala

Tokyo

Company Social & Media:

KAUCHE, Inc.

About the Company

Kaushe develops a discovery-based social e-commerce application focused on rapid product growth and user engagement. The company operates a product-driven environment where backend systems play a key role in ensuring scalability, reliability, and high-quality user experiences. The engineering team works in a small, focused structure with strong ownership culture.

About the Role

A Backend Engineer position is available for working on the development and operation of Kaushe’s core backend systems. The role focuses on designing, building, maintaining, and operating backend services using Go and Google Cloud. The engineer is expected to contribute to a high-growth product and take ownership of key technical decisions within a quality-driven engineering team.

Responsibilities

  • Develop, maintain, and operate backend systems for a social e-commerce application
  • Design and implement backend services using Go and Google Cloud
  • Work with APIs based on Protocol Buffers and gRPC
  • Support system reliability, scalability, and performance improvements
  • Collaborate with the engineering team to deliver production-grade features

Requirements

  • At least 2 years of professional backend development and operations experience (excluding PoC or internal-only systems)
  • Experience in backend development using at least one of the following languages: Go, Ruby, PHP, Java, Python, TypeScript, Scala, Kotlin, or Dart
  • Ability to take ownership of software development tasks and drive them independently

Preferred Skills

  • Experience with Go and Google Cloud
  • Experience in system architecture design and technology selection
  • Experience in frontend or mobile application development
  • Experience working as a product manager

Benefits

  • Annual salary range: 6.5 to 9 million JPY, depending on experience and skills
  • Transportation allowance up to 30,000 JPY per month
  • Stock options that remain valid after employment
  • Referral hiring bonuses
  • Club activity support system with partial funding
  • Book and seminar support programs
  • Peer bonus system (KAUpos)

Please refer to the official job posting for complete application details and submission instructions: