LINE Engineering
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  • LINE Group Call - Conference calls with up to 200 people
    Jungjun Park 2017.02.22

    I am in charge of VoIP server development at LINE.

    Hello, my name is Park Jungjun and I am currently developing the LINE Group Call feature.

    One of LINE's goals in development is Closing the Distance. To make this come true, LINE develops many different conversation services. On this LINE Engineering Blog post, I would like to introduce you to the features and technologies of one of our conversation services, LINE Group Call.

    LINE Group Call - Make voice calls with up to 200 people simultaneously

    LINE Group Call lets users have conference calls with up to 200 people simultaneously. Calls are made right from the LINE app. LINE Group Call was first released on March, 2016 with a voice call feature. By December, a video call feature was added to LINE Group Call. Using LINE Group Call, LINE users can make voice and video calls with their friends anywhere in the world for free.

    To use LINE Group Call, the following versions of LINE or above must be installed on your device.

    • LINE Group Voice Call: LINE iOS 5.11.0 or above, LINE Android 5.11.0 or above, LINE Desktop (Windows/macOS) 4.5.0 or above.
    • LINE Group Video Call: LINE iOS 6.9 or above, LINE Android 6.9.2 or above, LINE Desktop (Windows) 5.0.0 or above.

    LINE Groupcall VoIP

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  • LINE Taiwan TechPulse 2016 Recap
    Shawn Tsai 2017.02.21

    He is an engineer at LINE Taiwan, in charge of chatbot application development and LINE Platform technical consulting.

    This is Shawn Tsai from LINE Taiwan. In its goal to become a Smart Portal for users, LINE has been opening up more features of its LINE Platform to developers to spur on the development of innovative chatbot applications. On the heels of the successful LINE Developer Day events held in Japan, we held an event in Taiwan called "LINE Taiwan TechPulse" on December 26, 2016. We had a good turnout of more than 600 attendees to this event which included many of our local partners as well as many talented developers. Not only did we introduce the resources we've made available to developers on the LINE Platform, we also shared information about LINE's unique engineering culture and the career opportunities that are available at LINE.

    Taiwan TechPulse TechPulse

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  • LINE Engineering and the future of the LINE Engineering Blog
    Kushii Yusuke 2017.02.10

    In charge of actively and creatively promoting the technologies of LINE both in and out of the company. Also in charge of operations of LINE Developer Day 2016.

    Hello, Kushii here.

    In this blog post, I'd like to talk about the unveiling of the LINE Engineering site and what it means for the future of the LINE Engineers' Blog.

    The LINE Engineering site is a constantly updated hub for everything from LINE development culture, to open-source projects, job openings, and development documentation straight from the LINE developers site. The site is available in English, Japanese, and Korean. Support for Traditional Chinese is coming soon.

    LINE Engineering

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  • Outcomes of the LINE Security Bug Bounty Program
    Lee Myeongjae 2017.02.08

    He is a security engineer at LINE.

    About the LINE Security Bug Bounty Program

    Hello, my name is Lee Myoung Jae (MJ) and I'm in charge of security at LINE. In this post I'm going to talk about the LINE Security Bug Bounty Program and the results of the program in 2016. The LINE Security Bug Bounty Program is an ongoing program to make the LINE app more secure for our users by letting external engineers submit bug (vulnerability) reports which we would then immediately fix.

    We first conducted a trial run of the program called the LINE Bug Bounty Program from August 24 to September 23 in 2015. Based on our experience from that trial, we made various changes to create an improved bug bounty program for 2016. And on June 2, 2016, we launched the new and improved LINE Security Bug Bounty Program.

    For more information about the LINE Bug Bounty Program, see our previous blog posts: "Introducing the LINE Bug Bounty Program" and "Results From the LINE Bug Bounty"

    LINE Security Bug Bounty Program website: https://bugbounty.linecorp.com/

    BugBounty Security

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  • LINE Haskell Boot Camp
    Hyunje Jun 2017.01.25

    He is a front-end developer at LINE. He's interested in programming languages.

    Greetings! I'm Jun, a frontend engineer at LINE.

    We had a five-day event for internal engineers called the "LINE Haskell Boot Camp" starting on October 24th, 2016 at the LINE Shibuya office. I will share what the event was about, and what Haskell is in this post.

    What is Haskell?

    Haskell is a modern application programming language that helps you write high-performance software with a great deal of flexibility, composability, and safety. With recent successful cases of adopting Haskell by companies like Facebook or Standard Chartered, this innovative tool has been gaining attention as it has inspired many libraries and concepts in other languages.

    LINE is not an exception in this regard. With growing interest in Haskell, there is an increasing number of developers having study group meetings on Haskell or developing internal services written in Haskell. The LINE Haskell Boot Camp was a five-day gathering of engineers attempting to enter the world of safer and happier programming. Instead of diving into the depths of Haskell's theoretical background, we chose to have a hands-on experience to effectively spur further enthusiasm for Haskell. The event was organized by Han, a LINE Plus Corporation engineer who recently released an internal web service in Haskell.

    haskell

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