Infrastructure & Security Engineer


Minato-ku, Tokyo
    💴 ¥5M ~ ¥12M annually
    🏡 Fully remote
    🧪 Minimum years of experience unspecified
    💬 No Japanese required
    🌏 Apply from abroad
    🧳 Relocate to Japan


RESTAR Minato-ku, Tokyo

We are building the REMETIS platform, making it easier for real estate companies and financial institutions to access and understand data. We integrate publicly available information and client data to lower real estate transaction costs and simplify complex investment workflows.

Key benefits

  • Diverse viewpoints valued
  • Sustainable growth pursued
  • A mix of English and Japanese

About the position

In this position, you’ll perform tasks related to our AWS infrastructure, taking into consideration server architecture with a focus on security.


  • Develop our main REMETIS platform.
  • Collaborate closely with product leadership to define, clarify, and improve feature requirements.
  • Develop effective, maintainable, and clean software.
  • Maintain secure database access patterns and technical security measures.
  • Work with a remote engineering team focused on technical excellence and continuous improvement of our technical ability.
  • Contribute to the planning and building of new features.
  • Provide technical direction and guidance to other engineers.
  • Conduct code reviews with peers.
  • Contribute technical improvements to the codebase through discussion with technical and product leadership.
  • Effectively communicate the feasibility of requested features to product leadership and work with product leadership to find alternative solutions if necessary.
  • Help define high-quality software engineering standards and practices by maintaining high technical standards and contributing to software development guidelines.
  • Continuously improve your understanding of the real estate industry and domain.
  • Continuously improve your knowledge of the codebase and the technologies we use
  • Identify the tools, technologies, and patterns to improve the software system.
  • Maintain and improve coding standards, design patterns and software architecture.
  • Collaborate in technical discussions and bring your own ideas for the improvement of the codebase and product.
  • Learn new technologies as the need arises.


  • Experience on AWS
  • Advanced knowledge about security
  • Has a genuine passion for software design and software development.
  • Is excited to work at an early stage startup where one can still contribute and shape the product in a significant way.
  • Has experience with and understanding of server-side technology such as Node.js, Python, or Rails (or any MVC framework) to build RESTful web services.
  • Can contribute to projects involving various technologies.
  • Our backend is built in Elixir but you do not necessarily need prior experience in Elixir or Functional Programming.
  • We care more about how motivated you are to learn and your general engineering knowledge.
  • Has a good understanding of backend and database technologies.
  • Thrives in a collaborative environment involving different stakeholders and can communicate their ideas and point of view.
  • Has a solid understanding of the security, performance, and scalability implications of their code.
  • Values clean code, refactoring and thorough testing.
  • Likes to make meaningful contributions to technical discussions and to improve overall software design.

Nice to haves

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

  • Experience working at a Seed or Series-A startup.


The salary range is 5M to 8M JPY for junior level engineers and 8M to 12M for senior ones.

Hiring Process

  1. 1

    Document Screening

  2. 2

    Coding Test

  3. 3

    Introduction Interview

  4. 4

    Technical Round Interview

  5. 5

    Culture Fit Round Interview


Meet RESTAR's Developers

Two years after graduating from university, Luis joined RESTAR as a full stack developer. He shares his experience working there, and talks about the company's culture of growing together as a team.

Read his story...

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