NAVER x LINE AI RUSH 2019 – My Experience of the Final Round

At the LINE DEVELOPER DAY 2018 conference held in Tokyo, LINE Corporation CTO Park Euivin announced “Next LINE” as LINE’s vision in the development of technology. In this vision, AI (Artificial Intelligence), blockchain, and fintech would play a pivotal role. “Connect” and “Mutually Beneficial Ecosystem” were touted as significant keywords that would lead the organization …

Verda at CloudNative/OpenStack Days 2019 (2/2)

This blog post is the second part that continues from Verda at CloudNative/OpenStack Days 2019 (1/2). In the previous post we took a look at the overall ecosystem of Verda. In this post I will explain our network side challenges and how we optimized and improved Verda to overcome those challenges.

LINE’s Verda Network designs:

Lets go through the 3 transitions of LINE data center networks.

  1. L2-based network backed with upstream solution using Linux bridge
  2. L3-only flat network: Developed by LINE OpenStack engineers
  3. L3 Base Overlay network: Developed by LINE engineers

Verda at CloudNative/OpenStack Days 2019 (1/2)

Ever wondered what LINE uses internally for infrastructure management? If yes, then you came to the right blog post.
Recently at CloudNative/OpenStack Days Tokyo, LINE presented on its OpenStack cloud project called Verda.

This article is going to be a series of two blog posts which provide a summary of the entire Verda ecosystem:

  1. Verda at CloudNative/OpenStack Days 2019 (1/2)
     → Bird’s eye view of Verda
  2. Verda at CloudNative/OpenStack Days 2019 (2/2)
     → LINE’s network design to meet private cloud user requirements

In this blog post, we’ll be looking through a bird’s eye view of LINE’s OpenStack project Verda and introduce you to the entire OpenStack ecosystem that LINE has. Without further ado, let’s begin!

LINE Taiwan Security Meetup – BECKS #3

Information security has always been one of the key focuses of LINE. LINE has always strove to actively promote various security enhancement strategies over the years. As a part of our ongoing effort towards information security, LINE information security engineers hold a meetup known as BECKS (a portmanteau of beer and hacks) in Korea, Japan, …

The Repetitions Eliminator R Library “mmetrics”

Have you ever faced a situation where you need to compute the same metrics using similar or even the same computation formulas over and over again? How do you usually handle those repetitive tasks? As many engineers in our field of work know, dplyr is one of the most cool and efficient data wrangling grammars that provide us …

SeleniumConf Tokyo 2019

Introduction to SeleniumConf Selenium is one of the most popular automated software testing frameworks for the past decade. There are Selenium conferences in different cities around the world held on a regular basis. This year’s event, for the first time, was held in Tokyo. And it was also our first time attending a technical conference in …

App Design and Development Conference: An iOS Developer’s Impression

A great app needs both developers and designers working together, but we often have different tools and care about different aspects of the product. It can sometimes be difficult to coordinate our work, but at LINE we always try new ways to work more effectively. For instance, I’ve trained designers on our team on how …

LINE New-Grad Engineers: [June] Security Engineers

LINE welcomed 33 newly graduated engineers this year. In this monthly series, they will be introducing their experiences and an overview of the work that they do. 

For our second article in the series, we have invited Mr. Koh from the Application Security Team to talk about his initial work and experiences.

A walkthrough of my experience at WWDC19

The Apple World Wide Developer Conference (WWDC) is an annual event for developers who want to see the latest announcements from Apple. I was blessed with the opportunity to attend WWDC19, and I’m grateful that LINE covered all the expenses to make it happen. As this was the first time attending this wonderful conference for …

Developer interview with Trustin

Q. Hello, Trustin! Let’s start with a brief introduction of yourself. A. Hi. My name is Trustin, and I’m currently involved in open source development of Armeria and Central Dogma at LINE. Before I joined LINE, I worked at Twitter, responsible for the maintenance of Netty as well as the development of new features and upgrades to next versions. Q. You seem to …