掲載日 ・ 2026/01/22
楽天グループ株式会社
楽天グループ株式会社:Senior Backend Software Engineer – Search Department (SED)
非公開
東京都
会社名
楽天グループ株式会社
会社概要
未来を信じ、より良い明日を創っていく。
イノベーションを通じて、人々と社会をエンパワーメントする。私たちは、そんな想いを大切に世界の人々に喜びと楽しさを届けます。
楽天は、E コマース、FinTech、デジタルコンテンツ、通信など、70 を超えるサービスを展開し、世界10 億以上のユーザーに利用されています。
これら様々なサービスを、楽天会員を中心としたメンバーシップを軸に有機的に結び付け、他にはない独自の「楽天エコシステム」を形成しています。ダイバーシティ推進は、楽天にとって最優先の企業戦略のひとつです。従業員の出身は70カ国・地域以上。世界中からユニークで多様な文化的背景や視点を持つ優秀な人材が集まり、イノベーションの原動力になっています。社内カフェテリアにはベジタリアン、ハラル対応のメニューを用意。礼拝所(Prayer room)もあります。
また、仕事と育児の両立支援や、障がい者雇用・活躍促進も積極的に推進。社内のLGBT(※1)当事者やアライ(※2)に対して、情報共有やサポート体制の強化も進めています。誰もが自分らしく力を最大限発揮して働ける。それが楽天のダイバーシティです。
70を超えるサービスを提供し、世界30カ国にサービス展開拠点を持ち、従業員の出身国・地域数は100を超え、オープンポジション制度を活用して多様なキャリアを描くことができる点も魅力です。
フレックスタイム制度、事情に応じたリモートワークの活用が可能です。本社には託児所やフィットネスジム、三食無料で利用可能なカフェテリアが併設されるなど、社員を支える環境が整備されています。
ポジション
Senior Backend Software Engineer - Search Department (SED)
仕事内容
Job Description:
Business Overview
Rakuten is one of the biggest marketplace of Japan and is the largest internet ecosystem with a wide range of services ranging from e-Commerce, Travel, Banking, Fintech, Food Delivery, Golf, Insurance, Instant Messaging, Mobile Network etc. Rakuten has over 140 services globally. Our mission is to empower people and society through the internet while aiming at becoming the Global Innovation Company.
Department Overview
Search Department is part of the AI Engineering Supervisory Department under Technology Services Division in Rakuten. Search Department focuses on Search, Discovery, and Navigation experience for users of Rakuten. We in Findability Department help demand meet supply through our services that are engineered for scale, performance, and ease of use. We support 20 plus Rakuten Businesses across three different continents, 50 plus user functions and over a billion active users annually generating over two Billion dollars in revenue directly from us. Search Application Engineering Group is responsible for delivering some of the Mission critical Rakuten Applications used by millions of users.
Position:
Why We Hire
We are responsible for the development of large scale distributed Search platform that empower one of the biggest e-commerce of Japan and enables Rakuten ecosystem services worldwide. Rakuten Search group is constantly striving to challenge what existing search technologies can do and going beyond. We are looking for a highly motivated development engineer with strong test automation experience, with commitment to customer satisfaction, and a strong desire to create highest-quality Search platform for Rakuten Services.
Position Details
Responsibilities(includes but are not limited to):
- Design new and improve existing test plans & test scenarios.
- Conduct Project acceptance testing, Regression testing, and UI testing.
- Effectively report defects for test failures,
- Automate new & existing test scenarios and constantly increase the amount of test cases covered by automation.
- Manually execute test scenarios, which not yet automated.
- Continuously improve QA processes and methodologies
- Work collaboratively with peers to ensure project delivery on time with good quality.
求める経験・スキル
Mandatory Qualifications:
- Bachelor’s degree in Computer Science or related field
- 3+ years experience in Software Test Automation
- Experience in designing test plans and test scenarios.
- Experience in UI testing - both manual & automated.
- Knowledge and experience with programming languages (preferably Typescript)
- Proficient with Git, Unix/Linux commands
- Experience in test automation frameworks like Cucumber, Jest, Cypress
Desired Qualifications:
- Experience in designing quality processes and performing quality management.
- Experience with Selenium
- Experience with automated visual regression testing.
- Experience with Jenkins