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Jobs at Moon Creative Lab

Software Engineer

Moon Creative Lab Tokyo | Hybrid
EN: business
JP: business
Employment Type

Job Description

ISSHO’s engineering team is looking for a Software Engineer to join our team based in Tokyo. We are seeking a motivated individual who thrives in a fast-paced environment, loves tackling new challenges, and is eager to work at a rapidly growing startup.

We are not just seeking technical skills, but someone who is a proactive learner and a creative problem-solver. As part of a tight-knit team at ISSHO, we value a collaborative sprint and openness to diverse perspectives. At ISSHO, we are all about fostering an environment where everyone’s ideas are valued to build something incredible together.

Who We Are

ISSHO is an early stage venture currently incubated at Moon Creative Lab. We recently received investment from Moon, backed by Mitsui & Co. We're looking to use this investment to expand our international team with passionate individuals!

ISSHO is a work Tech SaaS business, which operates under the mission to ensure no work goes unnoticed in a workplace and recognize and amplify the often-overlooked contributions of employees.


  • Collaborate closely with the ISSHO team, including the founder and engineers, to enhance the company's market value.
  • Mentor and manage junior engineers, fostering a culture of technical excellence and innovation.
  • Drive through making key technical decisions in the development of new functionalities on the ISSHO platform tailored to customer needs.
  • Address customer issues promptly and effectively, enhancing productivity and satisfaction of the product
  • Drive and execute the development of new functionalities on the ISSHO platform to meet evolving customer needs

What You’ll Do at ISSHO 

As a member of the ISSHO team, your role will be crafting and implementing new features directly impacting our customers. Your contribution at ISSHO is not just to develop features, but your insights and suggestions will shape the evolution of our product, as we continuously strive for enhancement as a team.

Additional Expectations

  • Embrace a customer-centric approach to product development, actively gathering feedback and prioritizing features accordingly
  • Pursue continuous learning and development opportunities to stay updated on emerging technologies and industry best practices
  • Contribute to and uphold the values and culture of the company, fostering a positive and collaborative work environment
  • Remote work or in-person at our Omotesando Office, offering flexibility to accommodate individual preferences and needs


The Must-Haves 

  • Bachelor's degree in Science, Technology, Engineering, Math, or equivalent practical experience
  • 1+ years of experience in the workforce
  • Demonstrated experience in a fast-growing and dynamic work environment.
  • Experience programming with Javascript, or similar technologies preferred
  • Ability to communicate effectively in English

The Nice-to-Haves 

  • Ability to communicate in business-level Japanese
  • Experience working with relational databases such as PostgreSQL or MySQL
  • Experience developing web applications and chat bots, as well as working with and/or developing third-party APIs
  • Demonstrated ability to deploy production-level applications
  • Some knowledge of system design principles

Let’s ensure no work goes unnoticed globally!

If you empathize with ISSHO’s mission, then it’s time for you to submit your resume and optionally, a cover letter!

About the Company

Moon Creative Lab is a human-centered venture studio that powers the creation of new businesses. Moon’s mission is to help Mitsui & Co, one of Japan’s largest organizations, in its pursuit to become a more future-forward, entrepreneurial company.

We work to unlock the creativity of Mitsui’s 45,000 strong global workforces to build innovative businesses that will have an exponential impact on the world. We do this by bringing together the best talent in design, engineering, product, and more to create bold new ventures from zero to launch.

Moon transforms ideas into bold new ventures and provides the resources and expertise to light the way to a more creative future. We are human-centered in our approach and hands-on in our delivery. Our team of talented designers, engineers, product leaders, and marketers helps our idea owners connect with real users to create prototypes and MVPs and bring them to market quickly.