Job title: Full-stack Engineer (Leader/Member) KP
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
Job published: 2026-02-24
Job ID: 69809

Job Description

Career Opportunity for Full-stack Engineers in Japan!

 

■ Full-stack Engineer(Leader or Member)

 

■ Company Overview

As a Full-Stack Engineer, you will join our development team to lead the evolution of our AI products. You will be responsible for solving complex technical challenges in core functionalities and driving the development of products that continue to be chosen by customers

 

■ Your Role and Responsibilities 

You will be responsible for developing SaaS applications utilizing Generative AI. Your role will include designing and building highly efficient and reusable systems, as well as developing complex web applications. . 

●Product Development Using LLM:  Design and develop products leveraging Large Language Models (LLM). . 

●API Integration Projects: Lead projects to integrate multiple APIs and create new APIs. 

●Design and Implementation: Perform design and implementation with a focus on performance and maintainability. 

●Web Application Development: Develop frontend applications using TypeScript and Next.js

 

■ Experience and Qualifications

●Bachelor's or Master's degree in Computer Science, Software Engineering, Artificial Intelligence, Machine Learning, Mathematics, Physics, or related fields. 

●3+ years of experience in web application development using modern frameworks 

●2+ years of experience in server-side implementation. 

●Proficiency in at least one backend language (e.g., Python, Java) 

●Experience with cloud services (AWS, GCP, Azure) and understanding of container technologies (Docker, Kubernetes).

●Fluency in English and/or Japanese (business level or higher in at least one language). 

 

■ Good Reasons to Join

●Hybrid Work: 3 days in office, 2 days remote

●Flexible working hours: Core time is negotiable

●Flexibility: Future consideration for more flexible work styles is possible

●Exposure to Cutting-Edge Technology:  Work with the latest technologies, such as Generative AI and LLM, to deepen your technical knowledge.

●Creative Environment: Design and develop products with creative freedom, delivering user-friendly solutions.

●Growth Opportunities: Gain abundant career advancement opportunities in a rapidly growing startup.

 

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.




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