Full-Time Position (2027/2028 Start): Machine Learning Engineer (Experienced)

We are looking for candidates who will contribute to creating new value across a wide range of fields by using Recruit Group data to develop machine learning applications and to propose and drive short- and medium-term machine learning initiatives.

Beyond implementing given requirements, you will lead the entire cycle from identifying problems to production deployment and operations.

• Design, develop, and operate machine learning applications in production—such as recommendation, search optimization, and natural language processing—that leverage large-scale data
• Build and lead MLOps practices that close the gap between offline evaluation and business KPIs, so that business value is created continuously
• Design inference APIs for high-traffic production environments and carry out continuous refactoring

• People who have their own area of strength (e.g., data processing, algorithm selection, organizing business-side KPIs, MLOps implementation) and can apply it to their work
• People with experience identifying the essential problem and leading others to solve it
• People who can make flexible decisions based on the background and purpose of a project, rather than merely executing given requirements
• People who care not only about their own results but also about improving the results and output quality of the entire team

• Want to handle data gathered from a diverse range of services and make a major impact on society with your technical skills
• Aim for a career that bridges both business perspectives and engineering, rather than staying within a single technical domain
• Aspire to create new value for the business through the use of data
• Want to leverage the Recruit Group's resources and assets to deliver results that make an impact on society
• Have strong intellectual curiosity, a drive to explore the root cause of problems, and a desire to solve them

We actively adopt new technologies and methods whenever they make sense for improving the service.

Development methods vary depending on the scale and growth stage of each service, and we can switch methods mid-development when a better one is identified.

The Recruit Group is now at a turning point in its development organization, environment, and technology.

As a result, engineers are both expected and encouraged to take initiative, from exploring new development methods through to putting them into practice.

Rather than being limited to a career in management only, or in development within a specific technical domain, you can build a diverse career in the data field.

In particular, the Recruit Group has a well-established data infrastructure. Many of our products are already past the stage of simply getting data ready, and with our wide variety of products and large user base, you can work on high-impact uses of data.

For detailed examples, please see the following website and tech blog.

Recruit Data Blog (https://blog.recruit.co.jp/data/)

If you are interested in multiple positions or are unsure which course to choose, you can select multiple courses in the application form. You are also welcome to discuss which position suits you best during the selection process.

If you are interested in data-related roles, you may choose the course that best fits your experience, skills, and aspirations: Machine Learning Engineer (Experienced), Software Engineer (Experienced), Data Engineer (Experienced), Data Specialist (Experienced), or Data Specialist (Entry-Level).

Based on your preferences and aptitude as discussed during the selection process, we may suggest a course or position different from the one you selected in the form.

Tuesday, November 24, 2026, 13:00 JST (Japan Standard Time, UTC+9)

(= Monday, November 23, 2026, 20:00 PST / 23:00 EST)

Information on the selection steps will be sent to those who have completed their entry.

Our mission is to continuously deliver unprecedented value and innovative services to people around the world.

To achieve this, we are looking for leaders who can look beyond immediate requirements, identify root causes, and independently drive projects from strategic problem definition to execution.

We welcome candidates who can collaborate effectively with internal and external specialists, take ownership not only of their personal contributions but also of the overall team success and output quality, and drive business growth with real impact.

• Degree-seeking students enrolled at universities outside Japan

• Ability to appropriately select statistical analysis / machine learning methods for a business problem, and to build models and deliver outputs on your own
• Understanding of the principles of descriptive statistics, inferential statistics, and fundamental machine learning algorithms
• Ability to write production-quality code as part of a team, turning a conceptual design into working code as intended

• Ability to define requirements for an individual project and create the necessary documentation
• Ability to organize requirements for integrating multiple data sources and to design the system
• Ability to understand academic papers and conference talks related to data science, and to implement and evaluate prototypes on your own
• Ability to write clean code while accounting for various constraints, such as computational complexity, memory efficiency, data types, libraries used, and target implementation platforms
• Solid understanding of the fundamentals of algorithms and programming languages, regardless of the specific implementation language

This position is for candidates expected to graduate by September 2028. You will join in fiscal year 2027 or 2028 (our fiscal year runs from April to March), and your start date is flexible depending on your graduation timing.

Tokyo (possibility of working in other areas, including overseas, in the future)

After joining Recruit Holdings Co., Ltd., you will, in principle, be assigned to one of the following Recruit Group companies:

Recruit Co., Ltd. / Indeed Recruit Partners Co., Ltd. / Indeed Recruit Technologies Co., Ltd. / Indeed Japan K.K.

The standard working time is 8 hours per day, but employees have autonomy and discretion over their daily working hours and start and end times.

• Monthly salary: JPY 654,167 and up (base salary: JPY 506,451 + grade allowance: JPY 147,716) + bonus
• Example annual income: JPY 10,050,004 and up
  • The grade allowance (JPY 147,716) corresponds to 35 hours of overtime pay per month
  • Premium pay (late-night work allowance, holiday work allowance, overtime allowance, and additional premium allowance) is paid in accordance with the "Employee Salary Regulations"

• Revision of monthly salary: twice a year (April and October)
  • Base salary and grade allowance are determined by Mission Grade and, in principle, revised in April and October (Mission Grades may go up or down).
• Bonus: twice a year (June and December)
  • In the first year, a bonus is paid only once, six months after joining.
  • Bonus amounts may vary depending on company performance.
• Initial Mission Grade: determined and presented during the interview process according to each individual's skills and experience
  • The Mission Grade is a system under which a grade is set every six months according to the value of the role (expected results) an individual takes on. A distinctive feature of Recruit is that grades are set based on the results expected of the role, with high expectations built in, rather than on an assessment of an individual's current ability. Because grades are determined by expected results, regardless of years of service or experience, individuals who take on high-value roles are given high Mission Grades, allowing them to take on challenges beyond their current limits.

For details: Talent Development & Growth Support | Recruit Co., Ltd.

https://www.recruit.co.jp/people/career/

15 days are granted in the first year (of which 5 days are designated days off).

Thereafter, days are granted each year according to length of service (maximum 25 days).

By allowing employees to choose their own working days, we make it easier to balance work and personal life. In addition to national holidays and paid leave, we have increased the number of annual days off that employees can schedule themselves, for a total of 145 days. This averages 2.8 days off per week over the year.

(Details: https://www.recruit.co.jp/people/workstyle/)

To encourage the use of annual paid leave, employees with at least one year of service who take four or more consecutive days of paid leave receive an allowance of JPY 50,000 per fiscal year.

A paid long-term leave of up to 28 consecutive days, available to any employee with at least three years of service after completing the probationary period.

It can be taken again every three years thereafter.

Special leave for family events (marriage, bereavement) / relocation leave / F Leave (menstrual leave) / maternity leave (before and after childbirth) / work-related injury leave / leave to care for a sick child / family care leave / lay judge duty leave / adjustment leave after overseas business trips

1. Entry: submit the application form
2. Document screening
3. Interviews (multiple rounds) + coding test
   • Details will be provided only to candidates who pass the document screening.
   • We plan on roughly 4–8 interviews. However, depending on each candidate's circumstances, we may ask for additional interview time to deepen mutual understanding.

Details will be provided to those who have completed their entry.