RAKUS Co., Ltd.

【Server Side Engineer / Java】Tokyo｜Hybrid work｜SaaS solutions adopted by 15,000+ companies

Backend Engineer

5M - ***M JPY

Tokyo

Full-time (permanent)

Online Interview: Yes

Remote Work from Overseas: No / From Japan: Yes

Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

Less Than

Remote work Flex-time High utilization rate of paid leaves Plans for overseas expansion In-house product development No dispatch

Top-Selling Points

Rate of Foreigners
Less Than

Frequency of English Usage
Less Than

Remote work Flex-time High utilization rate of paid leaves Plans for overseas expansion In-house product development No dispatch

Related Skills

Programming Language

Java

Language Requirements

Required

Preferred

Language Requirements

Required

Japanese: Native

English: Greetings/None

Preferred

No Data

Job Description

Business Description
Web application development, including the addition of new functions, performance improvement, technical improvement, and renewal of any of the Rakuraku series (Rakuraku Seikatsu, Rakuraku Kozue) SaaS products.

Examples
1. Functional Development
From requirement definition - design - development - testing - release operations

2. Creation and review of development deliverables
Creation and review of specification and design documents
Code review

3. Responding to inquiries from the support department
Respond to inquiries and work requests
Troubleshooting and investigating defects

4. Member follow-up
Follow up with team members (technical and behavioral)

Development environment
(Any combination of the following)
Languages: Java, JavaScript
Middleware: Apache, Tomcat
Frameworks and libraries: Spring Boot, SAStruts, jQuery, React/Redux, Vue.js
Database: PostgreSQL
IDEs: eclipse, IntelliJ
Code review: Pull Request based (using GitLab's MergeRequest)
Methodology: Agile, Waterfall
Version control system: GitLab
Ticket management system: Redmine, Trello
CI, testing: GitLab CI, Jenkins, gradle, Selenium/Selenide
Other tools: Flyway, Docker, GitHub Copilot
PC: Laptop PC (Windows or Mac selectable)
Display: 2 wide displays provided

Development System
Each service is developed by a team of 5-10 people, and most of the development is done in-house by full-time employees.
Basic composition: managers/management leaders/technical specialist leaders/development members

Example of roles:
Project manager
Product Manager
Tech Lead (Technical Specialist)
Server Side Engineer
Front-end engineer
We also collaborate with other departments such as designers, infrastructure engineers, product marketing managers, and customer support.
We divide the work between management and specialists.
Management: PM/PdM work (progress management, resource management, member training, improvement activities, etc.)
Specialists: Development technology lead, technology training, technology dissemination, etc.

Hiring Background
Each service is scaling in terms of both new and existing services, and the number of users of the Rakuraku series and its contribution to society is increasing rapidly.
For example, RakuRaku's sales have grown by 30% annually over the past few years, and we feel that expectations from the market are growing. As a result, our development organization has increased to 100, 150, and 200 employees, with the potential to further double in size.

We will need engineers in a variety of roles, including engineering, tech lead, and management. We also have an environment where you can work in a variety of positions after you join our company and aim for even higher levels of success.
We are looking for engineers who will work together with us to expand our products and services to meet the expectations of our customers. The development team is basically an in-house development team consisting mostly of full-time employees.

We are looking for engineers who are willing to work together with us to expand our products and services.
I am able to carefully nurture products and increase the number of functions that I have created and love.
The team members can be involved in various aspects of the product, such as function selection, specification formulation, design, development, and operation, and can have a broad perspective.
The company is able to be involved in a wide range of processes, from upstream to downstream, and can challenge itself to do what it wants to do.
The Java development experience I gained at the SIer is also useful in our SaaS development.
Surrounded by bosses, seniors, colleagues, and juniors who are willing to challenge various roles with me.
I can maintain a good balance between quality and wastefulness.
I can take on the challenge of taking on different roles, such as reflecting my own opinions in services.
I can take on new challenges, such as reflecting my own opinions in the services I provide.

Business Description
LUX aims to help solve social issues where people and time are in short supply by using cloud and IT technologies to improve work efficiency. One of its representative services, the Rakuraku series, is particularly strong in developing multiple services to support back-office operations (accounting, finance, human resources, sales administration, etc.).

▼ Features
We provide multiple SaaS services and are developing products that are widely used by enhancing each product. As an example, we focus on improving back-office operations for medium-sized companies, and aim to create products that are widely used without customizing them for specific customers. We will focus our efforts on expanding into areas where we can solve the pain points of many customers, and each product unit will have the strength in functionality and usability that makes it useful enough to be used in business operations.
Many of LUX executives are experienced engineers, and we consider product development as one of the important management centers.

Service Examples
Rakuraku Seikatsu
Rakuraku Seikatsu" is a cloud-based expense accounting system that has been adopted by 15,000 companies, making it the No. 1 cloud-based expense accounting system in Japan in terms of total number of companies using the system.
It streamlines expense reimbursement for a wide range of companies, regardless of size or industry.
Rakuraku Kettei
Rakurakubetsu" is a cloud-based electronic invoicing system that issues invoices, delivery slips, payment details, and other forms on the web. It eliminates the time-consuming tasks of "printing, enclosing, and shipping" when issuing invoices.
Other systems include Rakuraku Sales, Mail Dealer, and Distribution Mail.

Development Organization
While each service division employs a business unit system, the Development Division exists across services as a specialized technical organization with engineers belonging to it. We believe that engineers can contribute more to the business if we create an organization that emphasizes the values they cherish and the culture they themselves create, and as a specialized technical organization that does not belong to a business division, we aim to create an environment where engineers can thrive and enjoy working.

Mission: To create overwhelmingly easy-to-use SaaS that leads customers to customer success.
Vision: To be Japan's leading SaaS development engineering group
Recognized by engineers throughout Japan as a leader in SaaS development
We work with confidence and pride that we are the No. 1 engineering group.

About us
◯ What we value
Continuously balancing the growth of existing services and the challenge of new business
Thoroughly implement PDCA (Plan-Do-Check-Act) to grow our business.
We are working on "essential things" to realize the growth of both the company and ourselves.
◯ Our challenges
To think together with the business side (sales, planning, CS, etc.) about "what" satisfies the needs and seeds of the market.
To build a team that values both work and people, as we are in the process of growing people as well as products.
Incorporate new functions that are not yet available in the market and new technologies that could be effective and coexist with the product.
To obtain feedback from customers even after the release of the product to improve the development and operation of the product.
◯ What kind of people are there?
People who enjoy growth, have a high sense of learning, initiative, and hospitality in order to create a single service with others.
People who enjoy developing services proactively without being passive developers.
People who make decisions and take action from both a business perspective and a development perspective, as it is their own company's service.
People who work from the perspective of total optimization by continuously accumulating know-how and systems, rather than on a one-off basis.

Scope of change: work as defined by the company

Required Skills and Experiences

●Experience in developing web applications using Java and RDB ●Experience in reviewing requirements/specifications, designs, and code

After sign up, you can browse all information.

If you already have a GitTap Account, please login.

Working Condition

Salary
Annual salary 5,677,980 yen - 9,661,116 yen
Example of annual salary 5,670,000 yen
Wage form：Monthly salary system
Method of determining wages: Based on the Company's regulations.
Monthly salary: Approx. 356,125 yen
　Basic salary: Approx. 278,000 yen
　Fixed overtime: 20 hours, overtime allowance 48,125 yen + other allowance 30,000 yen (excess amount to be paid separately)
*Regardless of whether or not overtime work is performed, an overtime allowance equivalent to 20 hours per month will be paid.
Bonus: Twice a year (June and December)
No change in conditions during the probationary period (6 months)
Salary increase: Once a year (May)
■Salary Example
Member class: Annual salary 5.67 million～
Leader class: 6,780,000～ per year
Assistant manager class: Annual salary 8,140,000～

Allowance
Family allowance (30,000 per month for one person, 50,000 for two people, 60,000 for three or more people) *Not applicable for assistant managers and managers
Late night allowance
Holiday work allowance (not for managers)
Commuting allowance (up to 100,000/month)
Travel allowance
Travel allowance

Work location
Shinjuku Maynds Tower, 2-1-1 Yoyogi, Shibuya-ku, Tokyo 151-0053, Japan
Scope of change: Offices determined by the company

Working hours
9:00-18:00

Salary increase
Once a year (May)

Bonus
Twice a year (June and December) *Except for managers, who receive an annual salary.

Benefits
Social insurance
-Health insurance (Kanto IT Software Health Insurance Association), unemployment insurance, welfare pension, workers' accident compensation insurance
Transportation expenses paid
-Transportation allowance of up to 100,000 yen/month
Family allowance
-One child 30,000 yen/month, two children 50,000 yen/month, three or more children 60,000 yen/month until the child turns 18 years old
Assistant managers and managers are not eligible for this allowance.
Commuting in plain clothes
Timely shift system / Monthly shift system
In order to promote flexibility in working style, working hours can be changed in 30-minute increments up to one hour before or after each day/month.
Example: 8:00-17:00, 8:30-17:30, 9:30-18:30, 10:00-19:00
Luxmile System
-Allows employees to choose working hours and evaluation style that suits them during the childcare period
*Available after one year of employment
Shortened working hour system (childcare/nursing care)
Other work support
-Babysitter assistance system
In-house clubs (baseball, futsal, light music, crafts, etc.)
In-house social events
In-house café (free coffee, tea, snacks, water server)
-Book loan system
-Regular training by job level (for managers, leaders, new recruits, etc.)

Vacations and Vacations
Two days off per week (Sat., Sun.)
National holidays
Year-end and New Year vacations
Summer vacation
Paid vacations
　-Paid holidays: 90% or more *Achievement for the fiscal year ending March 2024
Maternity leave
　-100% return to work after maternity leave
Child nursing care leave
　-5 days per child per year
Celebration and condolence leave
　-7 days of leave granted for marriage, bereavement leave, spousal maternity leave, etc.
Sick leave
　Sick leave -5 days/year
　-Paid leave in case of illness (granted separately from regular paid leave)
Time off
　5 days/year = 40 hours in one-hour increments
Special leave
Menstrual leave
Maternal health care leave
Backup leave
　-Up to 5 days per year may be accumulated up to a maximum of 20 days for the portion of paid leave that has lapsed beyond the accrual period. Usage restrictions apply.

Measures against passive smoking: No smoking indoors

RECRUITMENT PROCESS

document screening
　▼
First Interview
　▼
Final Screening / Aptitude Test 
　▼
Offer of employment

*In principle, applicants are required to take an aptitude test before the final interview, but the selection process may change 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

Remote work Flex-time High utilization rate of paid leaves Plans for overseas expansion In-house product development No dispatch

Top-Selling Points

Rate of Foreigners
Less Than

Frequency of English Usage
Less Than

Remote work Flex-time High utilization rate of paid leaves Plans for overseas expansion In-house product development No dispatch

Related Skills

Programming Language

Java

Language Requirements

Required

Preferred

Language Requirements

Required

Japanese: Native

English: Greetings/None

Preferred

No Data

Job Description

Business Description
Web application development, including the addition of new functions, performance improvement, technical improvement, and renewal of any of the Rakuraku series (Rakuraku Seikatsu, Rakuraku Kozue) SaaS products.

Examples
1. Functional Development
From requirement definition - design - development - testing - release operations

2. Creation and review of development deliverables
Creation and review of specification and design documents
Code review

3. Responding to inquiries from the support department
Respond to inquiries and work requests
Troubleshooting and investigating defects

4. Member follow-up
Follow up with team members (technical and behavioral)

Development environment
(Any combination of the following)
Languages: Java, JavaScript
Middleware: Apache, Tomcat
Frameworks and libraries: Spring Boot, SAStruts, jQuery, React/Redux, Vue.js
Database: PostgreSQL
IDEs: eclipse, IntelliJ
Code review: Pull Request based (using GitLab's MergeRequest)
Methodology: Agile, Waterfall
Version control system: GitLab
Ticket management system: Redmine, Trello
CI, testing: GitLab CI, Jenkins, gradle, Selenium/Selenide
Other tools: Flyway, Docker, GitHub Copilot
PC: Laptop PC (Windows or Mac selectable)
Display: 2 wide displays provided

Development System
Each service is developed by a team of 5-10 people, and most of the development is done in-house by full-time employees.
Basic composition: managers/management leaders/technical specialist leaders/development members

Example of roles:
Project manager
Product Manager
Tech Lead (Technical Specialist)
Server Side Engineer
Front-end engineer
We also collaborate with other departments such as designers, infrastructure engineers, product marketing managers, and customer support.
We divide the work between management and specialists.
Management: PM/PdM work (progress management, resource management, member training, improvement activities, etc.)
Specialists: Development technology lead, technology training, technology dissemination, etc.

Hiring Background
Each service is scaling in terms of both new and existing services, and the number of users of the Rakuraku series and its contribution to society is increasing rapidly.
For example, RakuRaku's sales have grown by 30% annually over the past few years, and we feel that expectations from the market are growing. As a result, our development organization has increased to 100, 150, and 200 employees, with the potential to further double in size.

We will need engineers in a variety of roles, including engineering, tech lead, and management. We also have an environment where you can work in a variety of positions after you join our company and aim for even higher levels of success.
We are looking for engineers who will work together with us to expand our products and services to meet the expectations of our customers. The development team is basically an in-house development team consisting mostly of full-time employees.

We are looking for engineers who are willing to work together with us to expand our products and services.
I am able to carefully nurture products and increase the number of functions that I have created and love.
The team members can be involved in various aspects of the product, such as function selection, specification formulation, design, development, and operation, and can have a broad perspective.
The company is able to be involved in a wide range of processes, from upstream to downstream, and can challenge itself to do what it wants to do.
The Java development experience I gained at the SIer is also useful in our SaaS development.
Surrounded by bosses, seniors, colleagues, and juniors who are willing to challenge various roles with me.
I can maintain a good balance between quality and wastefulness.
I can take on the challenge of taking on different roles, such as reflecting my own opinions in services.
I can take on new challenges, such as reflecting my own opinions in the services I provide.

Business Description
LUX aims to help solve social issues where people and time are in short supply by using cloud and IT technologies to improve work efficiency. One of its representative services, the Rakuraku series, is particularly strong in developing multiple services to support back-office operations (accounting, finance, human resources, sales administration, etc.).

▼ Features
We provide multiple SaaS services and are developing products that are widely used by enhancing each product. As an example, we focus on improving back-office operations for medium-sized companies, and aim to create products that are widely used without customizing them for specific customers. We will focus our efforts on expanding into areas where we can solve the pain points of many customers, and each product unit will have the strength in functionality and usability that makes it useful enough to be used in business operations.
Many of LUX executives are experienced engineers, and we consider product development as one of the important management centers.

Service Examples
Rakuraku Seikatsu
Rakuraku Seikatsu" is a cloud-based expense accounting system that has been adopted by 15,000 companies, making it the No. 1 cloud-based expense accounting system in Japan in terms of total number of companies using the system.
It streamlines expense reimbursement for a wide range of companies, regardless of size or industry.
Rakuraku Kettei
Rakurakubetsu" is a cloud-based electronic invoicing system that issues invoices, delivery slips, payment details, and other forms on the web. It eliminates the time-consuming tasks of "printing, enclosing, and shipping" when issuing invoices.
Other systems include Rakuraku Sales, Mail Dealer, and Distribution Mail.

Development Organization
While each service division employs a business unit system, the Development Division exists across services as a specialized technical organization with engineers belonging to it. We believe that engineers can contribute more to the business if we create an organization that emphasizes the values they cherish and the culture they themselves create, and as a specialized technical organization that does not belong to a business division, we aim to create an environment where engineers can thrive and enjoy working.

Mission: To create overwhelmingly easy-to-use SaaS that leads customers to customer success.
Vision: To be Japan's leading SaaS development engineering group
Recognized by engineers throughout Japan as a leader in SaaS development
We work with confidence and pride that we are the No. 1 engineering group.

About us
◯ What we value
Continuously balancing the growth of existing services and the challenge of new business
Thoroughly implement PDCA (Plan-Do-Check-Act) to grow our business.
We are working on "essential things" to realize the growth of both the company and ourselves.
◯ Our challenges
To think together with the business side (sales, planning, CS, etc.) about "what" satisfies the needs and seeds of the market.
To build a team that values both work and people, as we are in the process of growing people as well as products.
Incorporate new functions that are not yet available in the market and new technologies that could be effective and coexist with the product.
To obtain feedback from customers even after the release of the product to improve the development and operation of the product.
◯ What kind of people are there?
People who enjoy growth, have a high sense of learning, initiative, and hospitality in order to create a single service with others.
People who enjoy developing services proactively without being passive developers.
People who make decisions and take action from both a business perspective and a development perspective, as it is their own company's service.
People who work from the perspective of total optimization by continuously accumulating know-how and systems, rather than on a one-off basis.

Scope of change: work as defined by the company

Required Skills and Experiences

●Experience in developing web applications using Java and RDB ●Experience in reviewing requirements/specifications, designs, and code

After sign up, you can browse all information.

If you already have a GitTap Account, please login.

Working Condition

Salary
Annual salary 5,677,980 yen - 9,661,116 yen
Example of annual salary 5,670,000 yen
Wage form：Monthly salary system
Method of determining wages: Based on the Company's regulations.
Monthly salary: Approx. 356,125 yen
　Basic salary: Approx. 278,000 yen
　Fixed overtime: 20 hours, overtime allowance 48,125 yen + other allowance 30,000 yen (excess amount to be paid separately)
*Regardless of whether or not overtime work is performed, an overtime allowance equivalent to 20 hours per month will be paid.
Bonus: Twice a year (June and December)
No change in conditions during the probationary period (6 months)
Salary increase: Once a year (May)
■Salary Example
Member class: Annual salary 5.67 million～
Leader class: 6,780,000～ per year
Assistant manager class: Annual salary 8,140,000～

Allowance
Family allowance (30,000 per month for one person, 50,000 for two people, 60,000 for three or more people) *Not applicable for assistant managers and managers
Late night allowance
Holiday work allowance (not for managers)
Commuting allowance (up to 100,000/month)
Travel allowance
Travel allowance

Work location
Shinjuku Maynds Tower, 2-1-1 Yoyogi, Shibuya-ku, Tokyo 151-0053, Japan
Scope of change: Offices determined by the company

Working hours
9:00-18:00

Salary increase
Once a year (May)

Bonus
Twice a year (June and December) *Except for managers, who receive an annual salary.

Benefits
Social insurance
-Health insurance (Kanto IT Software Health Insurance Association), unemployment insurance, welfare pension, workers' accident compensation insurance
Transportation expenses paid
-Transportation allowance of up to 100,000 yen/month
Family allowance
-One child 30,000 yen/month, two children 50,000 yen/month, three or more children 60,000 yen/month until the child turns 18 years old
Assistant managers and managers are not eligible for this allowance.
Commuting in plain clothes
Timely shift system / Monthly shift system
In order to promote flexibility in working style, working hours can be changed in 30-minute increments up to one hour before or after each day/month.
Example: 8:00-17:00, 8:30-17:30, 9:30-18:30, 10:00-19:00
Luxmile System
-Allows employees to choose working hours and evaluation style that suits them during the childcare period
*Available after one year of employment
Shortened working hour system (childcare/nursing care)
Other work support
-Babysitter assistance system
In-house clubs (baseball, futsal, light music, crafts, etc.)
In-house social events
In-house café (free coffee, tea, snacks, water server)
-Book loan system
-Regular training by job level (for managers, leaders, new recruits, etc.)

Vacations and Vacations
Two days off per week (Sat., Sun.)
National holidays
Year-end and New Year vacations
Summer vacation
Paid vacations
　-Paid holidays: 90% or more *Achievement for the fiscal year ending March 2024
Maternity leave
　-100% return to work after maternity leave
Child nursing care leave
　-5 days per child per year
Celebration and condolence leave
　-7 days of leave granted for marriage, bereavement leave, spousal maternity leave, etc.
Sick leave
　Sick leave -5 days/year
　-Paid leave in case of illness (granted separately from regular paid leave)
Time off
　5 days/year = 40 hours in one-hour increments
Special leave
Menstrual leave
Maternal health care leave
Backup leave
　-Up to 5 days per year may be accumulated up to a maximum of 20 days for the portion of paid leave that has lapsed beyond the accrual period. Usage restrictions apply.

Measures against passive smoking: No smoking indoors

RECRUITMENT PROCESS

document screening
　▼
First Interview
　▼
Final Screening / Aptitude Test 
　▼
Offer of employment

*In principle, applicants are required to take an aptitude test before the final interview, but the selection process may change depending on the position.

Business (description what they do)

Available Jobs in (RAKUS Co., Ltd.)

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