Our Challenge in
The tech conference LINE DEVELOPER DAY 2021 is being held over 2 days, from November 10th until the 11th. Featuring a variety of engineers, the event will be a hub for discussion of cutting-edge tech and the challenges faced in such a diverse field. Whether you're looking to learn or you're searching for inspiration, we encourage you to join us.
Learn fromover sessions
Pick up Sessions
DAY-111.10 WED
DAY-211.11 THU
Sessions
58 Sessions
- DAY-1Track 113:00-13:40 JST
Opening Keynote
Euivin Park
- DAY-1Track 113:40-14:20 JST
Server Side
HBase and Kafka data pipeline and applications for LINE Messaging Platform
Shinya Yoshida
- DAY-1Track 213:40-14:20 JST
Data
Unification of Divided Data into Single Big Data Platform with 2000+ Nodes
Tasuku Okuda
- DAY-1Track 313:40-14:20 JST
AI
LINE Computer Vision Research: As Is and To Be
Panel DiscussionMinoru EtohYoshihisa IjiriKent FujiwaraYamato Okamoto
- DAY-1Track 413:40-14:20 JST
Machine Learning
A Case Study of Issues Arising from LINE’s User Persona Systems Revamping
Tetsuroh Watanabe
- DAY-1Track 114:20-15:00 JST
Server Side
LINT: Journey to Network Modernization with HTTP/2 and TLS
Byeoksan Lee
- DAY-1Track 214:20-15:00 JST
Data
Adopting Apache Iceberg on LINE Data Platform
Takeshi OnoTomoyuki Saito
- DAY-1Track 314:20-15:00 JST
AI
All We Need Is Prompting on a Pre-trained Japanese Large Language Model
Toshinori Sato
- DAY-1Track 414:20-15:00 JST
Machine Learning
Lupus - A Monitoring System for Accelerating MLOps
Junki Ishikawa
- DAY-1Track 115:00-15:20 JST
Server Side
Scalable Multi Datacenter ID Generator for LINE's Messaging Application
Masahiro Ide
- DAY-1Track 215:00-15:20 JST
Data
Quickly Build Kafka Stream ETL System with KSETL
Namil Kim
- DAY-1Track 315:00-15:40 JST
AI
Practical Application of End-to-End Speech Recognition Technology and AI Voice Recording Service "CLOVA Note"
Yusuke KidaHyuksu Ryu
- DAY-1Track 415:00-15:40 JST
Machine Learning
Upgrading the Food Delivery Service Using Machine Learning
Hongbo Zeng
- DAY-1Track 115:20-15:40 JST
Server Side
Outage Handling Process and Culture of the LINE Platform Server
SuAhn Lee
- DAY-1Track 215:20-15:40 JST
Data
Technical Challenges of HDFS Erasure Coding on a Large Scale
Toshihiko Uchida
- DAY-1Track 115:40-16:20 JST
Server Side
Investigating Request Delay in a Large-Scale Kafka Cluster Caused by TCP
Haruki Okada
- DAY-1Track 215:40-16:00 JST
Data
Introducing a Unified, Managed Workflow Service for LINE Data Platform
Yang Xu
- DAY-1Track 315:40-16:20 JST
Infrastructure
Reliable Log Aggregation System in Multi-Tenant Kubernetes cluster
Hiroki Sakamoto
- DAY-1Track 415:40-16:20 JST
Machine Learning
Building LINE Pay Monitoring System and Anomaly Log Detection System Using ML
Sun Uk Terry KimGiseung Lee
- DAY-1Track 216:00-16:20 JST
Data, Machine Learning
RPC Library for Distributed Processing Used for Machine Learning
Teppei Daito
- DAY-1Track 116:20-16:40 JST
Server Side
A Versatile System for Delivering Information to the LINE Home Tab
Zhixin Li
- DAY-1Track 216:20-16:40 JST
Data
Improvement in Information Reception Experience of LINE Official Account of LINE Pay by Data Science
Koya Sugimoto
- DAY-1Track 316:20-17:00 JST
Infrastructure
PIPE: CI/CD + Runtime as a Service for Better Developer Experience
Seung Lee (Mark)
- DAY-1Track 416:20-16:40 JST
Machine Learning
SHIELD : Protect from Abusers in LINE Timeline
Joohong Lee
- DAY-1Track 116:40-17:20 JST
Data
Initiatives for Data Management in Z Holdings Companies
Panel DiscussionMasanori SanoEri SakaueKimio KatsuyamaWataru Ojiri
- DAY-1Track 216:40-17:00 JST
Data
Mutual Collaboration between Data Analysis and Machine Learning Development at LINE: Continuous Improvement in Sticker Recommendation Engine
Yu Otsuka
- DAY-1Track 317:00-17:40 JST
Infrastructure
Zero-Downtime Kubernetes Cluster Upgrade Solution
Ran Xu
- DAY-2Track 113:00-13:40 JST
Server Side
Background of Development of Next-Generation Marketing Data Utilization Infrastructure "Business Manager"
Toshiyuki Nakamura
- DAY-2Track 213:00-13:40 JST
Frontend
Solving the Layout Shift Problem in LINE NEWS
Akinori Inoue
- DAY-2Track 313:00-13:40 JST
iOS/Android
About Affinity between SQLCipher and Room/CoreData
Bruce Evans Yuta Takanashi
- DAY-2Track 413:00-13:40 JST
Blockchain
Run Programs in LINE Blockchain as Well - WebAssembly Useful outside Web
Shiki TakahashiRyo Takase (loloicci)
- DAY-2Track 113:40-14:20 JST
Server Side
Story of Rewriting 8-Year-Old Perl Product with Kotlin
Kohei Ohara
- DAY-2Track 213:40-14:20 JST
Frontend
How We Made a Developer-Friendly UI Component Library
Sangchul Lee
- DAY-2Track 313:40-14:00 JST
iOS/Android
Migration of LINE’s Android App from SPDY to HTTP/2
Masakuni Oishi
- DAY-2Track 413:40-14:20 JST
Blockchain
How Do We Secure Transaction Data in Account-Base Blockchain?
Hongsup So
- DAY-2Track 314:00-14:20 JST
iOS/Android
On the Wear OS, How We developed LINE Application
Thuy Phan
- DAY-2Track 114:20-14:40 JST
Server Side
High-Speed Distribution to Enormous Group Using Pub/Sub of Redis
Kazuya Horiuchi
- DAY-2Track 214:20-15:00 JST
Frontend
LINE Creative Lab : Create Catchy Ads with HTML5 Canvas
Cong Nguyen
- DAY-2Track 314:20-15:00 JST
iOS/Android
Aim at 100% Push Notification - Knowledge Obtained by Data Analysis
Hisato Shoji
- DAY-2Track 114:40-15:00 JST
Server Side
Knowledge Derived from Search for Huge Track Metadata with Elasticsearch
Taku Tada
- DAY-2Track 414:40-15:00 JST
QA/Test
Quality in Use - Meet the Needs of Users
Changdeuk Hwa
- DAY-2Track 115:00-15:20 JST
Corporate IT
Issues of and Activities for In-House System in Merger
Takahito Hirose
- DAY-2Track 215:00-15:40 JST
Security
SMARTIAN: Enhancing Smart Contract Fuzzing with Data-Flow Analyses
Doyeon Kim
- DAY-2Track 315:00-15:40 JST
iOS/Android, Team & Process
History and Future of React Native App Development for Demae-can
Hiromasa UematsuShinji Kurosawa
- DAY-2Track 415:00-15:40 JST
QA/Test
QA to Improve Development Process - Expansion of Domain from QC to QA
Hiroyuki Okuda
- DAY-2Track 115:20-15:40 JST
Corporate IT
Case of Change in Handling of In-House System Caused by COVID-19
Takatoshi Terada
- DAY-2Track 115:40-16:00 JST
Corporate IT
Time Series Data Prediction for Service Ops
Lu Yan
- DAY-2Track 215:40-16:20 JST
OSS, Security
Open source contribution Starting with LINE FIDO2 Server
Kyungjoon Park
- DAY-2Track 315:40-16:00 JST
Developer Product
Introduction to LIFF/LINE Mini App - Characteristics and Practical Development
Ching-Wen Hu Taiki Ikeda
- DAY-2Track 415:40-16:00 JST
QA/Test
How Do We Assess Our Tests to Measure and Monitor Their Reliability?
Sz-Lin Chen (Edward)
- DAY-2Track 116:00-16:20 JST
OSS
MSA(Microservices Architecture)：Harder, Better, Faster, Stronger
Gyuil Han
- DAY-2Track 316:00-16:20 JST
Developer Product
For Improvement of Developer Experience of All LIFF App Developers
Takuya Okamoto Kohei Ueno
- DAY-2Track 416:00-16:20 JST
Team & Process
Leaders as Builders of Culture
Weera Kasetsin
- DAY-2Track 116:20-17:00 JST
OSS
LINE Open Source in 2021: Sharing our Annual Status
Seo-yeon Lee
- DAY-2Track 216:20-17:00 JST
Infrastructure
Implementing Observability Practices on Kubernetes
Che-Wei Lin (johnlin)Jun-Wei Wan
- DAY-2Track 316:20-16:40 JST
Developer Product
From Native to Web – Renewing Sticker Shop
John Edvard Reiten
- DAY-2Track 416:20-17:00 JST
iOS/Android, Team & Process
The Mechanisms to Improve the Productivity of Large-Scale Development Team
Hidenori Takeshita (taketin)
- DAY-2Track 316:40-17:20 JST
Developer Product
Specialized Technical Writing Team to Provide Documentation for LINE Developers
Yoshiko HorikoshiRoman Lossa