As a core member of the Messaging Platform team, you will be responsible for designing, implementing, and operating scalable and reliable backend services that process tens of billions of messages per day across the LINE ecosystem.
This role focuses on backend development for LINE Messaging with a strong emphasis on distributed systems and storage technologies. You will work deeply with distributed data infrastructure such as Redis, Apache HBase, and next-generation distributed databases (such as YugabyteDB), ensuring high performance, consistency, and fault tolerance at scale.
You'll collaborate with engineers across multiple teams to solve challenging problems at scale, particularly around high-performance data-intensive workloads and large-scale distributed databases.
This is a role where your contributions will directly influence the quality and experience of messaging used by hundreds of millions globally. You will be expected to take initiative, drive improvements, and help shape the future architecture of our distributed storage systems, while adhering to best practices in software engineering and system reliability.
Some of our tech talks:
*Scope of Change: There is a possibility of reassignment to any duties as determined by the company.
LINE Platform Server Function 開発チーム参考情報一覧
Our team is composed of talented engineers from diverse countries and backgrounds. We foster a culture of curiosity, learning, innovation, mutual trust and proactivity that empowers us to deliver at scale and adapt quickly to change.
Some of our tech talks on distributed storage at scale:
Expected annual salary: JPY 8,000,000 to JPY 15,000,000
Form of salary: Monthly salary (including fixed overtime allowance)
Standard monthly salary: JPY 534,000 to JPY 1,010,000
(Breakdown of standard salary)
―Base salary: JPY 414,000 to JPY 778,000
―Fixed overtime allowance: JPY 119,000 to JPY 223,000
Fixed overtime allowance of 35 hours will be provided, regardless of whether overtime work is performed.
Note 1: Overtime allowance is paid separately for overtime work in excess of the fixed 35 hours.
Note 2: Names of items related to monthly salary vary depending on the grades.
Bonuses are granted a maximum of two times a year. The amount is determined by factors including the company's and your department's performance.
Type of employment: permanent employee
Note: No fixed period of employment
Application
Coding test/Assignment
Interviews/ Background Check
Offer
We have designed our selection process with an emphasis on technical aptitude and shared values.
Through this process, we aim not only to assess technical skills but also to deepen mutual understanding with the team.
Please fill out and submit the application form.
You will be notified of the results of the selection process within two weeks at the e-mail address you entered in the application form, regardless of whether your application is accepted or not. It may take about one week longer if the application period falls during the Golden Week and the New Year holidays.
Applicants who pass the document screening will be required to undergo multiple interviews, aptitude/technical tests, compliance checks, and reference checks, although the details vary depending on the position.
You will be notified of the results of the selection process within two weeks at the e-mail address you entered in the application form, regardless of whether your application is accepted or not.
The schedule will vary depending on interviews and other factors, but if everything goes smoothly, an internal offer will be made within about four to six weeks after the application is submitted. Please note that we will not respond to inquiries regarding the details or criteria of the selection process or the reasons for the results, regardless of the results of your application.
To assess your eligibility for the position, we kindly ask you to provide the necessary personal information on the application form. Please note that this information will only be used for recruitment purposes. Please also note that your resume or other submitted documents will not be returned.
Overtime allowance, commuting allowance,*1 LY Corporation Working Style allowance,*2 etc.
*1 You will be paid for the number of days you actually came to the office. (Maximum of JPY150,000/month)
*2 Allowance to improve your remote work environment (JPY11,000/month)
Akasaka Office (Akasaka Trust Tower, 2-17-22 Akasaka, Minato-ku, Tokyo)
*The office at which you work upon hire will be your assigned location. Thereafter, there is a possibility of reassignment to all business locations as determined by the company.
*The offices are wheelchair accessible.
*Note on measures against passive smoking: In principle, no smoking indoors (smoking rooms are available).
Flextime system: standard work hours 7 hours 45 minutes (no core hours)
Start and end times are up to the individual. However, the company's standard working hours are from 9:30 a.m. to 6:15 p.m.
Note: Some departments may operate on the standard work hours (9:30 a.m. - 6:15 p.m.), while others may have a shift schedule.
Two days off per week (Saturdays and Sundays*1), national holidays, New Year's holiday (December 29 to January 4)
Paid leave, special paid leave (for condolence, maternity, sick childcare, nursing care, legally-designated communicable disease, etc.), Happy Friday*2, sabbatical leave
Work styles for those engaged in childcare and nursing care
*1 May differ depending on department.
*2 When a public holiday falls on a Saturday, employees will be given the previous business day off.
Optional Defined Contribution (DC) Pension Plan, Comprehensive Welfare Group Term Insurance, Group Long-term Disability, Employee Savings Program, Cumulative Stock Investment Program, subsidy for re-examination after regular basic/comprehensive health checkup, LY Corporation Working Style allowance, in-house massage room, club activities, subsidy for employee social events, and more