LY Corporation

Internship 2025

Backend Development for Features Related to LINE Stickers, Themes, and Emoji

JD Code: SWE-8-3

Course Name

Software Engineer course

*You can choose from the above courses as the department (position) in which you would like to work.

Job Details

Team members in this position are responsible for joining the back-end development and operation of the Sticker, Theme, and Emoji features of "LINE". We concentrate on scalable service architectures and storage solutions which support tens of millions of users and tens of millions of products. Our team develops and maintains high availability services with throughput exceeding 200,000 operations per second that support core features of "LINE" and contribute directly to business value by integratingtheinternal application platforms with user-facing features.

Required Experience/Skills

  • Experience with a programming language such as Java, Kotlin, Python, or C++
  • Knowledge of fundamental computer science concepts
  • Knowledge of a data storage technology such as MySQL

Preferred Experience/Skills

  • Knowledge of API or microservice development
  • Experience with JVM-based application development
  • Experience with a data storage technologies such as MySQL, MongoDB, Redis, Kafka

Duration of the Internship

18/8/2025 ~ 10/10/2025 (8weeks)

*The duration is negotiable.
*In principle, 3 days a week, excluding Saturdays, Sundays, and public holidays.
*The standard working hours are from 10:00 to 18:45, including a 1-hour break.
*Details will be discussed and determined upon join.

Internship Format & Location

Hybrid

*This internship will follow a hybrid working style, primarily remote with some in-office work.
*Details will be discussed with the host organization (position) upon join.
*The office location for in-office attendance for this position is the Kioicho Office or Hakata Office.

Compensation

  • Hourly wage of 2,600 yen
  • Provision of a PC
  • Reimbursement for transportation and accommodation costs when commuting to the office (with a cap)*

*If eligibility criteria are met

Application Requirements

  • Currently enrolled students without any full-time employment experience (excluding high school students)
  • Individuals who already possess a work visa for Japan
  • Those with a network environment at home suitable for work
  • Individuals residing in Japan during the internship period

Selection Steps

  • Step1

    Course selection

    From April 15th(Monday)to May 19th(Monday)10:00
  • Step2

    Coding test

    From May 19th(Monday)to May 26th(Monday)10:00
  • Step3

    Interview

    Mid-June
  • Step4

    Notification of results

    Mid-July

*Your preferred department (position) will be confirmed at the time of the test.
*Interviews at the desired department (position) will be arranged based on the test results and your preferences.

Application Deadline

19/5/2025 10:00

*The coding test will be distributed after the deadline.

Notes

  • When submitting the web test, you will be asked to provide multiple answers for your desired JD (position).
  • You can only apply for multiple positions within the same course.
  • If you wish to change the course you have selected, please contact us via My Page by 10:00 on May 20th (Monday).