【Python × Data Platform】Software Engineer｜Full Remote｜Workation OK｜¥6.5M–11M

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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