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Product engineeringProduct company

LY Corporation

Internet company operating the LINE messaging app and Yahoo! JAPAN, with e-commerce, payments and advertising services.

Not known4 stage process documented
Headquarters

Tokyo, Japan

Headcount

5,000 and up

5,000 or more people
Work model

Not known

Hiring

Not known

Not enough signal to say. Check the careers page directly.
Where to apply

No careers page on file yet. Try their LinkedIn or the job boards below.

Website

Ask for a referral to LY Corporation

A referral only means something if the person giving it can actually speak to your work. I will refer you where I know someone on the inside and your profile genuinely fits the role, and I will tell you plainly when I cannot. Either way you get an answer, and a straight one.

  • I read every request. A reply takes a few days, sometimes longer.
  • I will not refer someone for a role their profile does not fit. It wastes your time and costs me the contact.
  • Where I cannot refer you, I will say why, and point you at the way in that does work.
  • Nothing you send here is shared with anyone without you agreeing to it first.

If you found the opening, paste it. It tells me which team you mean.

A Drive, Dropbox or personal-site link is fine. Make sure it opens without a request for access, or I cannot read it.

At least a short paragraph. This is what I would be putting my name behind, so specifics beat adjectives.

Comma separated, up to six. Things you would be happy to be tested on.

How they hire

The new graduate selection for engineers is run in Japanese. LY does not publish selection criteria or explain outcomes. Internship performance can lead to an early invitation into selection.

  1. 1

    Application to one of three engineering courses

    Official
    Application screenRemote

    Graduates choose between software engineering, infrastructure and security courses, each selected separately.

  2. 2

    Coding test, with retakes

    Official +1
    Online testRemote

    An initial screening coding test. Under the Re-Challenge system candidates who fail can retake it in later rounds until the final round closes, and may switch position between attempts.

    Coding
  3. 3

    Interviews

    Official +1
    Technical interview

    Held online as standard, with interpretation between Japanese, English and Korean available on request. Candidates in Japan may be asked to attend in person. There are no retakes at this stage.

  4. 4

    Offer

    Official
    Offer

What comes up

Recurring themes from candidate accounts, not a question bank. Nobody is served by leaked question lists, least of all you in the interview.

  • Experience, skills and fit with the role

    Official

    LY says interviews generally cover your experience, skills and preferences and how well you fit the company and the position.

Worth reading before you apply

From the Sefism resource library, matched to the rounds above.

Course
Grokking Data Structures & Algorithms for Coding Interviews

A foundations course that builds eleven core data structures from the ground up (arrays, matrices, stacks, queues, linked lists, trees and BSTs, hash tables, hash sets, heaps, graphs and tries), then covers sorting, searching, greedy and divide and conquer. Every chapter has practice problems, flashcards and an assessment. It suits students and career switchers whose foundations came from tutorials and who find pattern courses move too fast.

  • Job search
  • DSA
  • CS fundamentals
Design Gurus · Interview Prep · 4 to 6 weeks · Beginner
SubscriptionDetails
Platform
Design Gurus Problem Set

A browsable practice library of coding problems that can be filtered by pattern, data structure, difficulty and company, so you can drill exactly the weakness you found this week. Patterns include two pointers, sliding window, hash maps, stacks, backtracking and greedy algorithms, with company filters for Google, Meta, Microsoft, Amazon, Oracle and LinkedIn. Free to browse, with an in-browser editor and solutions.

  • Job search
  • DSA
Design Gurus · Interview Prep · Ongoing
FreeDetails
Course
Grokking Tech Salary Negotiations

A practical course on negotiating compensation in tech, from preparing and building a strategy to specific tactics, the full package beyond base salary, handling multiple offers and asking for a raise. It has tailored sections for fresh graduates and experienced engineers. It suits anyone with an offer coming, and anyone who has ever accepted the first number out of discomfort.

  • Career
  • Job search
Design Gurus · Career Growth · 1 week
SubscriptionDetails
Guide
Design Gurus Newsletter

A free newsletter of short, focused posts on system design and problem solving, from the team behind the Grokking courses. Recent posts cover company interview processes (such as OpenAI and Anthropic roles), the most asked mobile system design questions and preparation plans, each linking to a fuller article on the blog. It suits engineers who want a steady, low-effort way to keep system design and interview topics fresh between deeper study sessions.

  • System design
  • DSA
Design Gurus · System Design
FreeDetails
Community
ICPC (International Collegiate Programming Contest)

The official site of the ICPC, the university programming contest where teams of three share one computer for five hours and advance from regional contests towards the World Finals. It is where coaches register teams, where the current regional and World Finals rules are published, and where you find contests, results and past problems.

  • DSA
  • CS fundamentals
ICPC Foundation · Other · A season of qualifying contests each academic year
FreeDetails
Video
Abdul Bari (YouTube channel)

Abdul Bari's channel is a classic university-style course on the design and analysis of algorithms, taught on a whiteboard in clear English. It covers complexity, divide and conquer, greedy methods, dynamic programming, backtracking, branch and bound, NP-hard problems and string matching, plus Java programming. It suits computer science students studying algorithms as a subject.

  • DSA
  • CS fundamentals
  • Programming
Abdul Bari · Other · Self-paced · Intermediate
FreeDetails
Browse the whole library

What it pays

Nothing collected for this company yet, and nothing worth guessing at. A made-up range is worse than no range because people negotiate against it.

Add to the LY Corporation page

This library is only as good as what people who have been through it are willing to share. Most of these companies have no hiring process documented anywhere, and one account of what the rounds actually were is worth more than anything I can research from the outside.

What are you adding?

This decides how the claim is labelled on the page. Only someone representing the company can produce an “official” label, and I check that separately.

Year and month.

Comma separated topics, not the questions themselves.

Round by round is ideal: what each one was, how long, remote or in person, and what it covered.

Credit

Anonymous is the default. If you keep it anonymous, nothing identifying you reaches the page: it is published as a candidate account and your name stays with me. Never send anything covered by an NDA, and never send a take-home or a question paper.

Universities they recruit from

No sourced university links yet. A campus drive, a career fair appearance or an internship partnership is what puts a university here.

Add to the LY Corporation page

This library is only as good as what people who have been through it are willing to share. Most of these companies have no hiring process documented anywhere, and one account of what the rounds actually were is worth more than anything I can research from the outside.

What are you adding?

This decides how the claim is labelled on the page. Only someone representing the company can produce an “official” label, and I check that separately.

Year and month.

Comma separated topics, not the questions themselves.

Round by round is ideal: what each one was, how long, remote or in person, and what it covered.

Credit

Anonymous is the default. If you keep it anonymous, nothing identifying you reaches the page: it is published as a candidate account and your name stays with me. Never send anything covered by an NDA, and never send a take-home or a question paper.

How to actually get seen

Use the coding test retakes as practice to learn the expected level, and build at least conversational Japanese, since the graduate process is conducted in it.

Sources

Whole profile last checked 2026-09-22.

Interviewed at LY Corporation? Fill in what changed.

Processes change, rounds get added, tests get replaced. If what you went through was different from what is on this page, tell me and I will update it.

Want me to refer you here?

Send me the role, your CV and a few honest paragraphs on why you fit it. Where I know someone inside and your profile matches, I will make the introduction. Where I cannot, I will tell you why and point you at the route that does work. You get an answer either way.

Ask for a referral to LY Corporation

A referral only means something if the person giving it can actually speak to your work. I will refer you where I know someone on the inside and your profile genuinely fits the role, and I will tell you plainly when I cannot. Either way you get an answer, and a straight one.

  • I read every request. A reply takes a few days, sometimes longer.
  • I will not refer someone for a role their profile does not fit. It wastes your time and costs me the contact.
  • Where I cannot refer you, I will say why, and point you at the way in that does work.
  • Nothing you send here is shared with anyone without you agreeing to it first.

If you found the opening, paste it. It tells me which team you mean.

A Drive, Dropbox or personal-site link is fine. Make sure it opens without a request for access, or I cannot read it.

At least a short paragraph. This is what I would be putting my name behind, so specifics beat adjectives.

Comma separated, up to six. Things you would be happy to be tested on.

Add to the LY Corporation page

This library is only as good as what people who have been through it are willing to share. Most of these companies have no hiring process documented anywhere, and one account of what the rounds actually were is worth more than anything I can research from the outside.

What are you adding?

This decides how the claim is labelled on the page. Only someone representing the company can produce an “official” label, and I check that separately.

Year and month.

Comma separated topics, not the questions themselves.

Round by round is ideal: what each one was, how long, remote or in person, and what it covered.

Credit

Anonymous is the default. If you keep it anonymous, nothing identifying you reaches the page: it is published as a candidate account and your name stays with me. Never send anything covered by an NDA, and never send a take-home or a question paper.

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