This position is closed and is no longer accepting applications.

Fullstack Engineer (Sales AI Agent team)

Exawizards Minato-ku, Tokyo March 10 2026
  • 💴 ¥6.5M ~ ¥10.1M annually
  • 🏡
    Partially remote
  • 🗾 Japan residents only
  • 💬
    Fluent Japanese
    No English required
  • 🧪
    Intermediate level
    3+ years experience required

About Exawizards

Exawizards Minato-ku, Tokyo

Exawizards is a technology company focused on addressing societal challenges through artificial intelligence. By developing AI platforms and products, we target both industry-specific problems and broader societal issues, such as those posed by an aging population.

Key benefits

  • Cutting-edge AI technologies
  • Fast-paced setting

About the position

The SalesTech business segment was established in April 2024 with the mission of driving the “essential evolution of sales through AI” — enhancing efficiency and maximizing results across all sales activities.

To support the entire value chain of sales, from upstream to downstream, the division is developing multiple products under a multi-product strategy. We are also integrating our other in-house solutions, such as exaBase Generative AI and exaBase Studio, to deliver optimal, customized solutions for each client.

Responsibilities

  • Develop the AI agent feature of exaBase Sales Agent, scheduled for release in winter 2025.
  • Work closely with product managers, machine learning engineers, and designers, you will take ownership of product development from planning to implementation.
  • Propose, design, and implement system-wide improvements (frontend, backend, and AI)
  • Improve code quality through code reviews, coding standards, and unit testing
  • Enhance software architecture in an AWS environment
  • Analyze and mitigate system risks

Requirements

  • 3+ years of professional experience as a software engineer
  • Experience in both backend and frontend development
  • Proficiency in TypeScript
  • Experience with React
  • Experience working in an agile development environment
  • Fluent in Japanese

Nice to haves

While not specifically required, tell us if you have any of the following.

  • Knowledge of cloud infrastructure
  • Understanding of machine learning or large language models (LLMs)
  • Experience in mobile app development

Compensation

¥6,480,000 ~ ¥10,080,000 annually.

Hiring Process

  1. 1

    CV Screening

  2. 2

    Coding Test

  3. 3

    First Interview

  4. 4

    Second Interview

  5. 5

    Final Interview

Meet Exawizards's Developers

Hsiang-Hao Yu describes how his small team developed ExaWizards’s enterprise AI product, and what kind of developers he wants to work with now.

Read their story...

Related jobs

More jobs like this

We'll send you a digest of new English-friendly software developer jobs in Japan. Your email stays private, we don't share or sell it.