Full Stack Engineer

4 months agoSenior Shibuya, Tokyo, Japan Hybrid Full Time Fullstack Jobs by Couger Inc.

Couger Inc.

Couger Inc. develops virtual human agent technology combining computer vision, trusted data connectivity, AI processing, and robotics.

0 current maintainers0 active leadsTeam intelligence

Maintainer signals as of 8/11/2026

Tokyo, JP

Projects

zkCREAM

About Couger Inc.

Couger Inc. is a technology company focused on virtual human agents. Its website describes capabilities spanning computer vision for real-time understanding of the physical world, trusted data processing and connectivity, AI-based analysis and decision-making, and robotics for carrying out actions in physical environments.

View jobs by Couger Inc.

Skills

Api Aws Azure Ci/Cd Cypress Database Data Pipeline Docker Figma Github Github Actions Go Google Cloud Jest Linux Material Ui Next.Js Performance Python React Storybook Tailwind Css Testing Typescript

Candidate Availability

Hybrid · Tokyo · Required

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will design, implement, test, and operate backend Web APIs and large-scale data processing pipelines using Go, Python, and cloud services. You will build and maintain web frontends with TypeScript, React and Next.js, implement test automation and CI/CD, improve performance and refactor code, develop shared libraries and UI components, and respond to on-call incidents.

Requirements

2+ years backend development experience in Python or JavaScript
2+ years frontend development experience with TypeScript React or Next.js
Design develop and operate Web APIs and data processing pipelines on cloud services
Experience with database design development and operation (RDBMS NoSQL NewSQL)
Experience using Git for version control
Business level Japanese (JLPT N1 equivalent)

Responsibilities

Develop and operate backend systems including Web APIs and data processing pipelines
Design and implement frontend web applications with TypeScript React and Next.js
Write and maintain automated tests and test code
Improve performance and refactor legacy code to reduce technical debt
Develop and maintain shared internal libraries and UI components
Manage deployments and CI/CD pipelines
Respond to on-call incidents and perform operational troubleshooting

Benefits

Complete social insurance (Kanto IT Software Health Insurance Association)
Commuting allowance
Communication allowance
On-call allowance
Company-provided laptop (MacBook Pro or Windows PC)
Paid holidays and leave including full weekends national holidays year-end new year annual paid summer sick and bereavement leave