Software Engineer / IaaS platform / Private Cloud Platform

求人概要 / Role and Responsibility
English follows Japanese

LINEではオンプレミスのインフラ拠点を国内外に複数持ち、物理サーバー数4万台超、インターネットトラフィックのピークが3Tbpsを超える規模のインフラを運用しています。
サービスの成長と多角化により毎年30%程度のペースでインフラの拡大が続いています。 

そのインフラ上に、日々多種多様なアプリケーションのデプロイがなされており、アプリケーションを開発・デプロイするエンジニアは世界10拠点以上にまたがり、総勢2500名を超えています。
このようなインフラ・開発エンジニアの規模では、開発エンジニアがインフラ構成を意識したデプロイをすることは、学習コストと運用コストが極めて高くなります。

インフラ開発エンジニアはアプリケーションとその動作環境であるインフラをシームレスにつなぐために、ソフトウェアの技術と手法を用いて、インフラのプロビジョニングとオペレーションの自動化とそれらを可能にするためのプラットフォームに責任を持ちます。

このポジションで採用された方は、LINEのPrivate CloudであるVerdaの中で特にOSS(OpenStack, Kubernetes、Rancher)を自社向けにカスタマイズやトラブルシューティング等の業務を担当することになります。

複数台の大規模OpenStackクラスタを運用する上での課題の解決
OpenStackを中心とするOSSの自社向けカスタマイズ/バグ修正
Private Cloudを取り巻くソフトウェアのトラブルシューティング (OpenStack, Libvirt, QEMU, Dnsmasq, Kubernetes)

▼参考情報
・チームの紹介: https://engineering.linecorp.com/ja/blog/verda-platform-team/
取り組みの紹介
https://www.youtube.com/watch?v=pNyjMRJViac
https://speakerdeck.com/line_developers/introduction-of-private-cloud-in-line
https://engineering.linecorp.com/en/blog/verda-at-cloudnative-openstack-days-2019-1-2/
https://engineering.linecorp.com/en/blog/verda-at-cloudnative-openstack-days-2019-2-2/


We have multiple on-premise IT infrastructure sites with over 40,000 servers and 3Tbps internet traffic worldwide.
Our infrastructure is growing by 30% annually due to service growth and diversification.

A wide variety of applications are being deployed on the infrastructure everyday and there are more than 2,500 developers in over 10 locations worldwide.

With this scale of infrastructure and developers, Learning and operating cost is too high for developers to deploy their applications with awareness of the infrastructure and its configuration.

We, infrastructure software engineers, are responsible for building and operating a platform to connect applications and infrastructure seamlessly using software techniques and methods.

In this position, You'll be responsible for OpenStack and its middleware of our private cloud platform "Verda" as follows.
 ・Resolving operation issues on multiple large scale OpenStack clusters
 ・Customizing and fixing bugs OSS (mainly OpenStack) to meet our requirements
 ・Troubleshoot our private cloud related softwares (OpenStack, Libvirt, QEMU, Dnsmasq, Kubernetes)


■Engineering Blog
【Team & Project】Meet the Team Developing the Verda Platform Using OpenStack and Kubernetes
https://engineering.linecorp.com/en/blog/verda-platform-team/
応募資格 / Qualifications
■必要な経験・スキル / Basic
・3年以上のアプリケーション開発経験、または同等の経験(C, Go, Python)
・情報工学の学士、またはそれと同等の知識と経験
・ソフトウェアのトラブルシューティング経験
・クラウドサービスを取り巻く基本的なネットワーク、ストレージ、仮想化に対する知識
・最新技術を積極的に学んでいくマインド
・日常会話以上の英語力(英語での業務になります)


・3+ years of experience of server-side software engineering, or equivalent experience (C or Go or Python)
・Bachelor's degree in Computer Science, or equivalent knowledge and experience
・Experience of software troubleshooting
・Knowledge of cloud services (network and storage and virtualization).
・Interest in learning new technologies
・Ability to use English (most of communication are done in English)

■歓迎する経験・スキル / Preffered
・OpenStack/Kubernetesに関する導入・運用経験
・オープンソースソフトウェアのコードレベルでのトラブルシューティング
・オープンソースソフトウェアを自社向けにカスタマイズした経験
・オープンソースソフトウェアに対するコントリビュート経験
・分散システムの開発/運用経験
・国内/海外カンファレンスでの登壇経験

・Experience operating or integrating OpenStack or Kubernetes
・Ability to troubleshoot open-source code
・Experience customizing open source for company business requirements
・Experience of contributing open source
・Experience operating or developing a distributed system
・Experience making presentations in tech conferences
勤務地 / Location
23F Yotsuya Tower, 1-6-1 Yotsuya, Shinjuku-ku, Tokyo 160-0004
雇用形態 / Employment type
正社員
勤務時間 / Working hours
One of the followings will be applied:
Discretionary labor system for professional work (Employee is deemed to have worked for 9.5 hours a day, regardless of the actual number of hours worked), Flex-time system (core time: 11:00 am–4:00 pm) or 10:00 am–6:30 pm(actual working hours 7 hr 30 min)
*To be determined after the interview process
待遇・福利厚生 / Benefits
■Holidays/Vacations
Weekends (Saturdays and Sundays), national holidays, paid leave, New Year’s holiday, congratulatory and condolence leave, "Refreshment" leave (every 5 years, employees who have been employed under a continuous contract are entitled to 10 days of paid leave)

■Compensations
Annual salary system (To be determined based on skills, experiences and abilities after discussions)

・Annual compensation will be divided into 12 months and paid on a monthly basis.
・Separate incentives available (*1)
・Compensation revision: twice a year
・Allowances: commuting allowance, LINE Pay Card Benefit Plan (*2)

(*1) In addition to your annual compensation, you may receive incentives (twice a year) depending on the company's and individual performance and evaluation on your performance. (Incentives are not guaranteed to be provided. An incentive payment will only be paid if you remain employed as of the payment date.

(*2) This is an allowance separate from the salary meant for employees to use for their health, personal development, support for raising the next generation, and more.

■Insurances
・Employment insurance, workers accident compensation insurance, health insurance, employees pension insurance

■Benefits
・Periodic health checkup
・Company events and others

*Implementation of second-hand smoke prevention measures
[Prohibiting Indoor Smoking (other than Smoking Room)]
Osaki, Minami-shinjuku, Yotsuya

*Details to be shared during interviews.