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▶︎ Work Style & Location
🏠 Full Remote anywhere in Japan
🌏 Workation available – work from overseas for up to approximately 1 month
⏰ Flexible working hours (Core Time: 10:00–14:00)
🇯🇵 Business-level Japanese required
▶︎ About the Company
A fast-growing AI startup based in Japan developing next-generation enterprise AI solutions powered by proprietary Large Language Models (LLMs). The company builds its own Japanese-language AI models from scratch and provides AI products used by hundreds of leading enterprise customers across Japan.
Backed by significant funding, the company offers engineers the opportunity to work on cutting-edge AI infrastructure, large-scale distributed systems, and products that drive digital transformation for major enterprises.
▶︎ Role Overview
We are seeking a Software Engineer (Data Platform) to design, build, and operate the large-scale data platform powering enterprise AI products.
You'll develop distributed data pipelines and web crawlers that collect and process billions of documents—including news, patents, research papers, and web content—to support next-generation AI applications.
This is an excellent opportunity to work on large-scale distributed systems, serverless architecture, and modern AI infrastructure.
▶︎ Key Responsibilities
Design, develop, and operate large-scale data pipelines using Python and TypeScript
Build and maintain web crawlers for public web content
Improve the scalability and reliability of AWS serverless infrastructure
Design monitoring and operational systems for distributed processing
Collaborate with Product Managers, AI Engineers, and Data Engineers
Improve the shared data platform supporting multiple AI products
▶︎ Required Skills & Experience
3+ years of professional software engineering experience
Strong application development experience with Python
Experience delivering software from requirements definition through implementation and operation
Experience in at least one of the following:
AWS Serverless (Lambda, ECS, Fargate, Step Functions)
Data Pipelines / ETL
Spark or distributed data processing
Business-level Japanese
Currently residing in Japan
▶︎ Preferred Skills
Terraform
Docker
TypeScript / Node.js
Experience leading engineering projects
SaaS product development
Experience with document search or recommendation systems
Master's or PhD in Computer Science
▶︎ Tech Stack
Python, TypeScript (Node.js), AWS, Docker, Terraform, PySpark, Puppeteer
▶︎ Compensation & Benefits
Annual Salary: ¥8M– ¥11M
Salary review twice a year
Full remote work within Japan
Flexible working hours (Core Time: 10:00–14:00)
Annual learning budget
Company pension
Full social insurance
▶︎ Work Location
Japan (Full Remote)
Employees can work remotely anywhere within Japan.
▶︎ Holidays & Leave
123 annual holidays
National holidays
Paid leave
New Year holidays