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Updated 2025-04-15
Activated 2025-04-15

Senior Backend Engineer (Authentication and Authorization)_Fully remote
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This posting is managed by: bloomtech.inc
Company Name Company is not publicly visible
Job Type
bloomtech.inc
IT (PC, Web, Unix) - Fullstack Engineer
IT (PC, Web, Unix) - Back-End Engineer
IT (PC, Web, Unix) - Tech Lead/Lead Engineer
Industry Telecommunications/Information Services
Location Asia Japan Tokyo Taito

Job Description ■Job Description
You will be responsible for developing the authentication and authorization area in SaaS development.
You will discuss and collaborate with stakeholders on user account management and access control, which are required for enterprise SaaS, while proceeding with development.

Specific examples of work are as follows, but the work is not limited to them.

・Development of a customer user management system linked to the authentication platform (Auth0)
・Development of access control for CADDi Drawer
・Development of API authentication and authorization in microservices (assuming authentication and authorization using OAuth2.0)
・Architecture review of authentication and authorization for each service and team

■About the team
・Assumed to be assigned to the CADDi Drawer ID team.

　The ID team is a team that reviews and designs the authentication and authorization areas of each service, such as CADDi Drawer and CADDi Quote, across the board.
　We would like the person joining us in this position to be responsible for designing the appropriate authentication and authorization for multiple apps, including CADDi Drawer.

・Please refer to this slide for an overview of the development organization.

　Engineers, designers, and product managers work in 10 or so teams of 4-6 people each, each in charge of various function development (drawing use, search, estimates, etc.), data infrastructure development, machine learning/MLOps, R&D, enabling (QA/SRE), security, etc.

Our organizational design incorporates the idea of team topology, aiming to balance "ensuring the discretion and speed of each team" with "overall optimization through standardization across teams."

20% of the development members are from overseas (Asia, Europe, North America, etc.). In some teams, communication is primarily in English, and important meetings are held in both Japanese and English, and we are challenging ourselves to create an organization where members from various countries can thrive.

■Experience gained in this position
・Experience designing authentication and authorization architecture for a rapidly growing product
・Experience designing authentication and authorization for API communication in microservices
・Experience tackling difficult challenges with passionate members
Company Info ■Recruitment Background
At CADDi, we are developing a data platform product for the manufacturing industry called "CADDi Drawer" with the mission of "unleashing the potential of the manufacturing industry."
Launched in 2022, "CADDi Drawer" uses various technologies such as machine learning to structure drawing data, which is said to be the most important data in the manufacturing industry, and links it with various information, making it possible to use it as an information asset. It is already being used by customers from major domestic manufacturers to processing companies, and is growing rapidly. From 2023, we will also start selling overseas (USA, Thailand, Vietnam), accelerating our global expansion.

In the future, we aim to achieve overall optimization beyond departments and companies by reproducing and consolidating manufacturing knowledge beyond drawings using technology.
In terms of development, there are many themes we would like to tackle, such as strengthening the functionality as a data platform, developing multiple new applications that run on the platform, and strengthening the foundation to withstand the exponentially increasing number of users and data volume.
We are looking for colleagues to work with us on product development that is difficult and challenging.
Working Hours Flextime system (core time 11:00~16:00)
Job
Requirements		 ＜Required skills＞
- More than 7 years of practical experience in designing, developing, and operating web applications
- Have any of the following experiences

Experience involved in an authentication infrastructure development project

Experience leading the development of authentication and authorization for multiple products using IDaaS

Experience developing an authorization infrastructure to manage user or system access control

Understanding and utilizing technologies in the authentication and authorization and digital identity fields (OAuth2.0, OpenID Connect, SAML2.0, etc.)

- Fluent business communication skills in Japanese

Ability to complete daily tasks in Japanese, including text communication and meetings

Example: Japanese Language Proficiency Test N2 level, about 3 years of work experience in a Japanese environment, etc.

＜Welcome skills＞
- Experience in OAuth2.0 and OpenID Keep up with the latest specifications such as Connect

・Experience in development related to access control such as RBAC, ABAC, or ReBAC

・Experience in designing and operating authentication and authorization across multiple services

・Experience in developing and operating microservices

・Business-level English skills

<Desired personality>

・Someone who sympathizes with CADDY's mission of "unleashing the potential of the manufacturing industry"

・Someone who can face essential issues and take action to solve them with a sense of ownership

・A passion for solving problems using technology in the areas of authentication and authorization and digital identity

・Someone who can carry out work through a positive attitude and constructive discussion in a rapidly changing and highly uncertain situation

・Someone who can communicate and discuss with respect for others, taking into consideration the other person's context and resolution
Japanese Level Business Level(JLPT Level 2 or N2)
Salary JPY - Japanese Yen JPY 8500K - JPY 12000K   
Other Salary
Description		 Social Insurance
Holidays Five-Day Workweek
Summer Holidays
Winter Holidays
Refresh Holidays
Paid Holidays
Job Contract
Period		 Full-time employment
Nearest Station Full remote work
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