Job title: Full stack Engineer (RC)
Job type: Permanent
Emp type: Full-time
Industry: IT & Telecommunications / IT・通信
Functional Expertise: Technical (IT) / 技術職(IT)
Salary: Negotiable
Location: Tokyo Japan
Job published: 2026-04-23
Job ID: 71544

Job Description

Career Opportunity for a Full stack Engineer in Japan! 

 

■ Full stack Engineer 

 

■ Company Overview

We combine AI and conversation design expertise, provides brands the ability to easily create and integrate automated chat experiences, transforming post, story, or ad into personalized interactive experiences. 

 

■ Your Role and Responsibilities 

●Your main responsibility will be development and maintenance of Affiliate system understanding both business demand and available system assets.

●Involved in the whole process of web application development life cycle: architecture design, middleware selection, development, configuration setting, release and system operation.

●In case of trouble, detecting root cause and recovering with team members proactively with ownership of service/system.

●Proposing new technologies, middle-wares, tools etc. to improve architecture of systems.

 

 

■ Experience and Qualifications

●9+ years building production software systems

●5+ years building scalable backend services in production environments with Go, plus working knowledge of Ruby on Rails. Equivalent experience with other backend technologies (Python, C#, Node.js, etc.) will also be considered

●3+ years building modern web applications with React or Vue

●Experience with distributed systems design and microservices architecture

●Global state management in complex frontend applications

●Production database optimization and query performance tuning

●CI/CD pipeline design and automated testing strategies

 

Technical Environment

Backend: Go microservices with Rails BFF layer

Frontend: React with TypeScript

Data: PostgreSQL with Redis caching

Infrastructure: Cloud-native deployment with container orchestration

Development: GitHub-based workflows with automated deployment

 

■ Additional Preferred Qualifications
●Engineers who understand that chatbots suck and want to build something that actually works

●Full-stack developers who can cross frontend/backend boundaries and autonomously drive product growth

●Builders with curiosity and drive to immediately implement new AI/LLM technologies into products

●Engineers who thrive on startup speed and can push beyond limits

●Familiar with cloud platforms such as GCP, AWS and Azure.

 

■ Good Reasons to Join

● Full remote position within Japan

● Work with International team members

 

■ Work Location

Tokyo, Japan

 

Details will be provided during the meeting.

 

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