Backend, Engineer, Energy Aggregation System



Software Engineering
Tokyo, Japan
Posted on Sunday, April 30, 2023
Woven by Toyota is building mobility for a safer, happier and more sustainable world. A subsidiary of Toyota, Woven by Toyota develops and invests in new technologies, software, and business models that transform how we live, work and move. With a focus on software-defined vehicles, automated driving, data-driven intelligence, security, mobility services, embedded platforms, AI, and more, we build on Toyota's legacy of trust and safety to deliver mobility solutions for all.
For nearly a century, Toyota has been delivering products and services that improve lives. Its earliest offerings, which automated the simple manual task of weaving, have evolved into the safe, reliable, connected automobiles we enjoy and depend on today. Woven by Toyota is an integral part of Toyota’s vision for the next 100 years—a world where mobility is easier, safer and more enjoyable for more people.
Our unique global culture weaves modern Silicon Valley innovation and time-tested Japanese quality craftsmanship and operational excellence. These complementary strengths enable us to develop and deliver cutting-edge technology at scale—optimizing for safety, advancing clean energy and elevating well-being. We envision a human-centered future where world-class technology solutions expand global access to mobility, amplify the capabilities of drivers, and empower humanity to thrive.
The Toyota Woven City is a fully connected ecosystem powered by hydrogen fuel cells and several energy storage devices to be built at the base of Mt. Fuji in Japan. It is envisioned as a 'living laboratory' and 'ever evolving,' incorporating various types of cutting edge technologies. At the same time, it is also 'human-centric,' that is, it is expected to keep people safe and comfortable.
Woven City's R&D team will develop innovative products and services using technologies developed by Toyota Motor Corporation.
Our mission is to:
1. Develop services and products for Woven City
2. Expand capabilities through long-term R&D
Toyota Motor Corporation has been involved in a variety of technological development in the robotics, energy, and automotive domains for a long time. Our team will leverage Toyota's hardware expertise in these fields to create new value by developing software on top of this.
Our team will develop innovative services that are essential to the city. As a first party developer, we will also build a foundation upon which third party partners can participate. Therefore, we are responsible for not just the applications but also the core software and capabilities.
Our team consists of many highly experienced members with international work experience. We strive to be open minded as we create a new culture with members from various backgrounds and nationalities. Our global team works closely with the Toyota Motor Corporation and the Toyota Research Institute in North America to develop our technologies and products.
We are seeking talented people to join us as we take on new challenges to create new products and services for the Toyota Woven City.
For more information about Woven City, please visit: https://www.woven-city.global/
We are looking for engineers with a passion about developing and operating the city-level energy aggregation system used in daily life in Woven City. With hands-on experiences and deep knowledge about software development, you are expected :
・to develop backend system with traceability between product requirements, functional specifications and codes.
・to work closely with various specialists and other service development departments.


  • Work with stakeholders to define backend software specifications for the Energy Operation System, the Energy Use App or the Energy Simulator.
  • Work with software and hardware engineers to define functions specifications, interfaces, data pipelines
  • Write code or support coding engineers on cloud services.
  • Analyze and manage requirements and resolve conflicting requirements.
  • Perform software document, code and test reports reviews.
  • Build and promote a process continuously to improve specification documents and code.
  • エネルギー運用システム、エネルギーユーザーアプリもしくはエネルギーシミュレータに関するバックエンドのソフトウェアの仕様を関係者とともに定義する。
  • ソフトウェア、ハードウェアエンジニアと協働し、機能群の仕様やインターフェース、データパイプラインを定義する。
  • コーディングする。もしくはエンジニアをサポートする。
  • 要件を分析、管理し、相反する要求を解決する。
  • ソフトウェア文書やコード、テストレポートのレビューを行う。
  • 仕様書やコードの継続的な改訂のプロセスを構築し、推進する。


  • Bachelor's degree in Information Engineering, Data Science, Computer Science, Mechanical Engineering, Electrical Engineering, a related technical field, or equivalent practical experience.
  • 3+ years of experience in developing energy system backend software through the collaboration with third parties.
  • Skills in defining functional specifications and coding based on software requirements.
  • Experience and knowledge of software version management and coding test management.
  • Experience and skills in writing publications about electrical or thermal energy systems.
  • Proficiency in language skills for Japanese daily conversation.
  • Passion to develop English skill
  • 情報工学、データサイエンス、コンピュータサイエンス、機械工学、電気工学もしくはそれらに関連する技術領域や経験を持つ学士
  • サードパーティーと連携してエネルギーシステムのバックエンドのソフトウェアの開発を担当した経験3年以上
  • ソフトウェア要件を元にした機能仕様の定義やコーディングのスキル
  • ソフトウェアのバージョン管理やコーディングテスト管理の経験や知識
  • 電気もしくは熱のエネルギーシステムに関する著作物作成の経験やスキル
  • 日本語での日常会話のスキル
  • 英語のスキル向上への意欲


  • Master's degree in Information Engineering, Data Science, Computer Science, Mechanical Engineering, Electrical Engineering, a related technical field, or equivalent practical experience.
  • Experience in backend software development processes from requirement definitions to operations.
  • Experience in the software product development for the energy management system, electric power system, HVAC system or prediction systems (weather, traffic, logistics, stock trading etc.).
  • Experience and knowledge in the quality control process such as ISO 9000 family.
  • Proficiency in business level English and Japanese.
  • 情報工学、データサイエンス、コンピュータサイエンス、機械工学、電気工学もしくはそれらに関連する技術領域や経験を持つ修士
  • 要求定義から運用までのバックエンドのソフトウェア開発プロセスの経験
  • エネルギーマネジメントシステム、電力システム、HVAC、予測システム(気象、交通、輸送、株取引など)のソフトウェア開発の経験
  • ISO9000シリーズのような品質管理プロセスの経験や知識
  • ビジネスレベルの英語と日本語
If you are currently located outside of Japan we will set up an interview over Google Hangout Meet or Skype.
・Competitive Salary - Based on skills and experience
・Work Hours - Flexible working time with NO core-hours
・Paid Holiday - 20 days per year (prorated)
・Sick Leave - 6 days per year (prorated)
・Holiday - Sat & Sun, Japanese National Holidays, and other days defined by the company
・Japanese Social Security - all applicable (Health Insurance, Pension, Workers’ Comp, and Unemployment Insurance, Long-term care insurance)
・In-house Training Program (software study/language study)
By submitting your application you agree to the following terms: click here.
Our Commitment
・We are an equal opportunity employer and value diversity.
・We pledge that any information we receive from candidates will be used ONLY for the purpose of hiring assessment.