RAKUS Co., Ltd.

【Product Security Engineer】No.1 Cloud System in Japan｜Tokyo Stock Exchange Prime Market-Listed

Bridge SE

6.5M - ***M JPY

Tokyo

Full-time (permanent)

Online Interview: Yes

Remote Work from Overseas: No / From Japan: No

Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

Less Than

High utilization rate of paid leaves Plans for overseas expansion International employees In-house product development

Top-Selling Points

Rate of Foreigners
Less Than

Frequency of English Usage
Less Than

High utilization rate of paid leaves Plans for overseas expansion International employees In-house product development

Related Skills

Management/System project Experience

Project Management Member management Tech lead

Cloud / Infrastructure / DevOps tools

AWS

Language Requirements

Required

Preferred

Language Requirements

Required

Japanese: Business

English: Business

Preferred

No Data

Job Description

【Position Summary】
Rakus offers a wide range of SaaS products, each with its own unique system architecture, combining both on-premises and cloud environments.
To maximize service value for customers, our infrastructure and development teams need to stay focused on product development.
This role is responsible for defining and promoting cross-functional security measures and vulnerability responses across all products.
You will collaborate closely with both infrastructure and development teams to deliver secure services to customers.

While strengthening security measures is essential, overly strict rules can slow down development and reduce the value we provide to users.
Your mission is to establish realistic and scalable security policies by gathering insights from external case studies and internal engineer feedback.
You will drive standardization and knowledge sharing across products, ensuring efficient and effective security practices.
This position focuses on securing externally available SaaS product development.

【Responsibilities】
As part of a cross-functional team, you will mainly lead the following:
・Formulating and embedding security policies and rules in SaaS product development at Rakus
・Establishing security policies for web and mobile applications
・Selecting and applying vulnerability scanning tools
・Managing OSS licenses and vulnerabilities, and improving related workflows
・Defining and updating development and release guidelines
・Formulating and supporting the implementation of backup policies
・Establishing and operationalizing product incident response processes

【Challenges】
・Reducing critical security incidents in Rakus SaaS products
・Staying up to date with the latest security practices
・Improving the efficiency of security implementation in development workflows

【Attractiveness of the Position】
・Gain in-depth knowledge of security and develop your expertise
・Engage cross-functionally with the engineering organization and contribute to improvements across multiple SaaS products and operations
・Rather than merely executing top-down directives, collaborate closely with development and infrastructure teams, sometimes taking the lead, and focus on what truly matters

【Team Structure】
Development Division – Department 1 – Development Management Section
Section Manager: 1 (Male, 40s)
・Technical Support Team: 1 Technical Leader, 2 Members ※This position
・Budget Management Team: 1 Member
・Development Support Team: 2 Members
※The entire Development Division includes over 200 members, with separate departments for development and infrastructure.

【Work Environment】
Basic programming may be involved in tasks such as automation or data analysis, but it is not mandatory.

■Development
Languages: PHP, Python, Bash
Middleware: Apache, Superset
Databases: PostgreSQL, MySQL
Development Environment: Laptop with dual wide monitors (Windows or Mac selectable)
IDE: VSCode, Eclipse
Code Review: Pull Request-based (using GitLab Merge Requests)
AI Tools: GitHub Copilot, ChatGPT, Devin, NotebookLM

■Management
Version Control: GitLab
Ticket Management: Redmine
Other Tools: AWS

【Business Overview】
Rakus aims to address social issues such as labor shortages and time constraints by improving operational efficiency through cloud and IT technologies.
One of our flagship offerings, the “Rakuraku Series,” provides multiple services that support back-office operations such as accounting, finance, HR, and sales administration.

▼Key Features
We develop multiple SaaS products, each strengthened individually to ensure broad usability.
Our focus is on streamlining back-office operations for mid-sized businesses, and we do not offer client-specific customizations.
Instead, we aim to develop widely usable products with features and user experiences that solve common customer pain points.
Each product is designed to be valuable and functional on its own.
Many of our executives have engineering backgrounds and consider product development a core strategic priority.

【Development Organization】
While each service operates under its own business unit, the Development Division functions as a cross-functional technical team where engineers belong.
We believe that a culture created and valued by engineers themselves enables greater business contribution.
Rather than embedding engineers in business units, we’ve established a technical organization where they can thrive in a fun, collaborative, and empowering environment.

▼Mission: Drive customer success by creating exceptionally user-friendly SaaS
▼Vision: Become Japan’s leading SaaS development engineering team
・Recognized as leading SaaS developers by engineers across Japan
・Proud and confident in being the No.1 engineering group in the field

【About Us】
◯ What We Value
・We continue to balance “growth of existing services” with “challenges in new businesses.”
・We thoroughly implement the “PDCA” cycle to grow our business.
・We focus on "fundamental things" to achieve both company and personal growth.

◯ Our Challenges
・Collaborating with the business side (sales, planning, CS, etc.) to figure out "what we need to create" based on market needs and potential opportunities.
・As products grow, we must build a team that values both work and people.
・Incorporating new, effective technologies and features that are yet to be available in the market.
・Continuing to improve development and operations even after the product release, based on customer feedback.

◯ What Kind of People Work Here
・People who enjoy growth and have a high level of awareness, initiative, and hospitality to build a unified service.
・People who enjoy proactively developing services, moving away from a passive development mindset.
・People who take ownership of both the business and development perspectives as their own when making decisions and taking actions.
・People who work continuously to accumulate knowledge and systems, progressing with a holistic view for overall optimization.

Required Skills and Experiences

【Required Qualifications】 ■ Candidates must meet at least one of the following criteria: ・Experience as a security engineer ・Experience in web application development ・Experience as an infrastructure engineer ■ Business-level proficiency in Japanese ■ At least 3 years of work experience in Japan 【Preferred Qualifications】 ■ Experience in leading or managing projects

After sign up, you can browse all information.

If you already have a GitTap Account, please login.

Working Condition

【Employment Type】
Full-time employee

【Salary】
Annual Salary: ¥6,489,120 – ¥9,661,116
(Example) For an annual salary of ¥6,480,000:
Monthly salary: ¥407,000 (Base salary: ¥322,000 + Fixed overtime allowance: ¥55,000 + Other allowances: ¥30,000)
※ A fixed overtime allowance equivalent to 20 hours per month is included, regardless of actual overtime worked.
※ There are no changes to these conditions during the 6-month probation period.

【Allowances】
・Family allowance (¥30,000/month for 1 child, ¥50,000/month for 2 children, ¥60,000/month for 3 or more children)
・Overtime allowance
・Night shift allowance
・Holiday work allowance
・Commuting allowance
・Relocation allowance
・Business trip allowance

【Location】
151-0053 Tokyo, Shibuya-ku, Yoyogi 2-1-1, Shinjuku Minds Tower
151-0051 Tokyo, Shibuya-ku, Sendagaya 5-27-5, Link Square Shinjuku 7th floor
Note: Possible change of work location as specified by the company.

【Working Hours】
9:00 AM - 6:00 PM

【Salary Increase】
Once a year (May)

【Bonus】
Twice a year (June and December)
Note: Excludes management positions, which are on an annual salary basis.

【Benefits】
■ Social insurance
Health insurance (Kanto IT Software Health Insurance Association), Employment insurance, Welfare pension, Workers' compensation insurance
■ Transportation allowance
Up to ¥100,000/month
■ Family allowance
¥30,000/month for 1 child, ¥50,000/month for 2 children, ¥60,000/month for 3 or more children until the age of 18
Note: Assistant managers and management positions are not eligible for this allowance.
■ Commuting in casual attire
■ Timely Shift System / Monthly Shift System
Flexible working hours within a range of ±1 hour, in 30-minute increments, adjusted daily or monthly
Example: 8:00 AM – 5:00 PM, 8:30 AM – 5:30 PM, 9:30 AM – 6:30 PM, 10:00 AM – 7:00 PM
■ Rakusmile System
During child-rearing periods, employees can choose work hours and evaluation styles that suit them.
Note: Available after 1 year of employment.
■ Shortened working hours system
For childcare
For caregiving
■ Other employment support
Babysitting subsidy
In-house clubs (baseball, futsal, light music, Gundam plastic models, etc.)
In-house social events
In-house cafe (free coffee, tea, snacks, and water dispenser)
Book lending system
Regular training by hierarchy (for management, leaders, new employees, etc.)

【Holidays and Leave】
■ Full two-day weekends (Saturday, Sunday)
■ National holidays
■ New Year's holiday
■ Summer vacation
■ Paid vacation
90%+ paid leave usage rate (Fiscal year ending March 2024)
■ Maternity leave
100% return rate after leave
■ Childcare leave
5 days/year per child
■ Bereavement leave
7 days for marriage, funeral leave, spouse's paternity leave, etc.
■ Sick leave
5 days/year
Paid leave for sickness (separate from regular paid leave)
■ Time-off leave
5 days/year = 40 hours, to be used in 1-hour increments
■ Special leave
■ Menstrual leave
■ Maternity health management leave
■ Backup leave
Employees can accumulate unused paid leave for up to 20 days within a year, with restrictions on usage.

RECRUITMENT PROCESS

Document Screening
▼
First Interview
▼
Final Interview / Aptitude Test
▼
Job Offer

Note: In principle, the aptitude test will be taken before the final interview, but the selection process may vary depending on the position.

Business (description what they do)

We offer several cloud services to support back-office operations such as expense reimbursement and sales management, as well as front-office operations such as responding to customer inquiries and marketing.

Available Jobs in (RAKUS Co., Ltd.)

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Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

Less Than

High utilization rate of paid leaves Plans for overseas expansion International employees In-house product development

Top-Selling Points

Rate of Foreigners
Less Than

Frequency of English Usage
Less Than

High utilization rate of paid leaves Plans for overseas expansion International employees In-house product development

Related Skills

Management/System project Experience

Project Management Member management Tech lead

Cloud / Infrastructure / DevOps tools

AWS

Language Requirements

Required

Preferred

Language Requirements

Required

Japanese: Business

English: Business

Preferred

No Data

Job Description

【Position Summary】
Rakus offers a wide range of SaaS products, each with its own unique system architecture, combining both on-premises and cloud environments.
To maximize service value for customers, our infrastructure and development teams need to stay focused on product development.
This role is responsible for defining and promoting cross-functional security measures and vulnerability responses across all products.
You will collaborate closely with both infrastructure and development teams to deliver secure services to customers.

While strengthening security measures is essential, overly strict rules can slow down development and reduce the value we provide to users.
Your mission is to establish realistic and scalable security policies by gathering insights from external case studies and internal engineer feedback.
You will drive standardization and knowledge sharing across products, ensuring efficient and effective security practices.
This position focuses on securing externally available SaaS product development.

【Responsibilities】
As part of a cross-functional team, you will mainly lead the following:
・Formulating and embedding security policies and rules in SaaS product development at Rakus
・Establishing security policies for web and mobile applications
・Selecting and applying vulnerability scanning tools
・Managing OSS licenses and vulnerabilities, and improving related workflows
・Defining and updating development and release guidelines
・Formulating and supporting the implementation of backup policies
・Establishing and operationalizing product incident response processes

【Challenges】
・Reducing critical security incidents in Rakus SaaS products
・Staying up to date with the latest security practices
・Improving the efficiency of security implementation in development workflows

【Attractiveness of the Position】
・Gain in-depth knowledge of security and develop your expertise
・Engage cross-functionally with the engineering organization and contribute to improvements across multiple SaaS products and operations
・Rather than merely executing top-down directives, collaborate closely with development and infrastructure teams, sometimes taking the lead, and focus on what truly matters

【Team Structure】
Development Division – Department 1 – Development Management Section
Section Manager: 1 (Male, 40s)
・Technical Support Team: 1 Technical Leader, 2 Members ※This position
・Budget Management Team: 1 Member
・Development Support Team: 2 Members
※The entire Development Division includes over 200 members, with separate departments for development and infrastructure.

【Work Environment】
Basic programming may be involved in tasks such as automation or data analysis, but it is not mandatory.

■Development
Languages: PHP, Python, Bash
Middleware: Apache, Superset
Databases: PostgreSQL, MySQL
Development Environment: Laptop with dual wide monitors (Windows or Mac selectable)
IDE: VSCode, Eclipse
Code Review: Pull Request-based (using GitLab Merge Requests)
AI Tools: GitHub Copilot, ChatGPT, Devin, NotebookLM

■Management
Version Control: GitLab
Ticket Management: Redmine
Other Tools: AWS

【Business Overview】
Rakus aims to address social issues such as labor shortages and time constraints by improving operational efficiency through cloud and IT technologies.
One of our flagship offerings, the “Rakuraku Series,” provides multiple services that support back-office operations such as accounting, finance, HR, and sales administration.

▼Key Features
We develop multiple SaaS products, each strengthened individually to ensure broad usability.
Our focus is on streamlining back-office operations for mid-sized businesses, and we do not offer client-specific customizations.
Instead, we aim to develop widely usable products with features and user experiences that solve common customer pain points.
Each product is designed to be valuable and functional on its own.
Many of our executives have engineering backgrounds and consider product development a core strategic priority.

【Development Organization】
While each service operates under its own business unit, the Development Division functions as a cross-functional technical team where engineers belong.
We believe that a culture created and valued by engineers themselves enables greater business contribution.
Rather than embedding engineers in business units, we’ve established a technical organization where they can thrive in a fun, collaborative, and empowering environment.

▼Mission: Drive customer success by creating exceptionally user-friendly SaaS
▼Vision: Become Japan’s leading SaaS development engineering team
・Recognized as leading SaaS developers by engineers across Japan
・Proud and confident in being the No.1 engineering group in the field

【About Us】
◯ What We Value
・We continue to balance “growth of existing services” with “challenges in new businesses.”
・We thoroughly implement the “PDCA” cycle to grow our business.
・We focus on "fundamental things" to achieve both company and personal growth.

◯ Our Challenges
・Collaborating with the business side (sales, planning, CS, etc.) to figure out "what we need to create" based on market needs and potential opportunities.
・As products grow, we must build a team that values both work and people.
・Incorporating new, effective technologies and features that are yet to be available in the market.
・Continuing to improve development and operations even after the product release, based on customer feedback.

◯ What Kind of People Work Here
・People who enjoy growth and have a high level of awareness, initiative, and hospitality to build a unified service.
・People who enjoy proactively developing services, moving away from a passive development mindset.
・People who take ownership of both the business and development perspectives as their own when making decisions and taking actions.
・People who work continuously to accumulate knowledge and systems, progressing with a holistic view for overall optimization.

Required Skills and Experiences

After sign up, you can browse all information.

If you already have a GitTap Account, please login.

Working Condition

【Employment Type】
Full-time employee

【Salary】
Annual Salary: ¥6,489,120 – ¥9,661,116
(Example) For an annual salary of ¥6,480,000:
Monthly salary: ¥407,000 (Base salary: ¥322,000 + Fixed overtime allowance: ¥55,000 + Other allowances: ¥30,000)
※ A fixed overtime allowance equivalent to 20 hours per month is included, regardless of actual overtime worked.
※ There are no changes to these conditions during the 6-month probation period.

【Allowances】
・Family allowance (¥30,000/month for 1 child, ¥50,000/month for 2 children, ¥60,000/month for 3 or more children)
・Overtime allowance
・Night shift allowance
・Holiday work allowance
・Commuting allowance
・Relocation allowance
・Business trip allowance

【Location】
151-0053 Tokyo, Shibuya-ku, Yoyogi 2-1-1, Shinjuku Minds Tower
151-0051 Tokyo, Shibuya-ku, Sendagaya 5-27-5, Link Square Shinjuku 7th floor
Note: Possible change of work location as specified by the company.

【Working Hours】
9:00 AM - 6:00 PM

【Salary Increase】
Once a year (May)

【Bonus】
Twice a year (June and December)
Note: Excludes management positions, which are on an annual salary basis.

【Benefits】
■ Social insurance
Health insurance (Kanto IT Software Health Insurance Association), Employment insurance, Welfare pension, Workers' compensation insurance
■ Transportation allowance
Up to ¥100,000/month
■ Family allowance
¥30,000/month for 1 child, ¥50,000/month for 2 children, ¥60,000/month for 3 or more children until the age of 18
Note: Assistant managers and management positions are not eligible for this allowance.
■ Commuting in casual attire
■ Timely Shift System / Monthly Shift System
Flexible working hours within a range of ±1 hour, in 30-minute increments, adjusted daily or monthly
Example: 8:00 AM – 5:00 PM, 8:30 AM – 5:30 PM, 9:30 AM – 6:30 PM, 10:00 AM – 7:00 PM
■ Rakusmile System
During child-rearing periods, employees can choose work hours and evaluation styles that suit them.
Note: Available after 1 year of employment.
■ Shortened working hours system
For childcare
For caregiving
■ Other employment support
Babysitting subsidy
In-house clubs (baseball, futsal, light music, Gundam plastic models, etc.)
In-house social events
In-house cafe (free coffee, tea, snacks, and water dispenser)
Book lending system
Regular training by hierarchy (for management, leaders, new employees, etc.)

【Holidays and Leave】
■ Full two-day weekends (Saturday, Sunday)
■ National holidays
■ New Year's holiday
■ Summer vacation
■ Paid vacation
90%+ paid leave usage rate (Fiscal year ending March 2024)
■ Maternity leave
100% return rate after leave
■ Childcare leave
5 days/year per child
■ Bereavement leave
7 days for marriage, funeral leave, spouse's paternity leave, etc.
■ Sick leave
5 days/year
Paid leave for sickness (separate from regular paid leave)
■ Time-off leave
5 days/year = 40 hours, to be used in 1-hour increments
■ Special leave
■ Menstrual leave
■ Maternity health management leave
■ Backup leave
Employees can accumulate unused paid leave for up to 20 days within a year, with restrictions on usage.

RECRUITMENT PROCESS

Document Screening
▼
First Interview
▼
Final Interview / Aptitude Test
▼
Job Offer

Note: In principle, the aptitude test will be taken before the final interview, but the selection process may vary depending on the position.

Business (description what they do)

Available Jobs in (RAKUS Co., Ltd.)

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