Software Engineer, QA Engineer


(Japanese follows English)

▼ Our mission

We are always looking for new challenges to help us fulfill our mission to create value in a global marketplace where anyone can buy & sell.

The world is full of objects and services being produced and sold, but many of them are thrown away without people realizing that they might be valuable to someone else, wasting valuable natural resources. To contribute towards eliminating waste, we have launched Mercari, a marketplace where people can buy and sell easily and safely, in Japan and the United States.

▼ Our three values (Go Bold, All for One, Be a Pro)

We work together to create a global marketplace, but the road to this goal is by no means easy. In order for us to make new innovations and take on new challenges that no one has taken before, all of us take ownership of our work and make use of our knowledge so that we can create the best product possible as one team. To achieve this, we all take action based on our three company values (Go Bold, All for One, and Be a Pro).

▼ The goal of the engineering organization

At Mercari, engineering teams always strive to continuously produce significant results. To do this, our organization constantly welcomes changes and new challenges, cooperates and co-creates, is diverse, offers freedom, and encourages all of us to take ownership and make our own decisions. We want to continue taking on new challenges, working together as one team, going bold, and taking ownership so that we can grow individually, while working toward the realization of Mercari’s mission.

▼What we do

As a QA/Test Engineer, you will be part of a project focused on developing new features or improving current features of the Mercari app. Working in a fast-paced, quality-focused environment, you will be involved in QA (Quality Assurance) related activities throughout the entire development process from planning to final release.

Job description

・Reviewing and providing feedback for plans and specs created by the product manager

・Designing and implementing tests: not just finding bugs, but also gathering feedback to contribute to improving features

・Participating in release plans, sharing responsibility for a timely release with the development team

・Challenging yourself with new strategies such as test automation, improving processes, etc.

・Collaborate with third party contractors to build a scalable verification team

▼ 我々のミッション


世の中では多くのモノ・サービスが生産・販売されていますが、誰かには価値があるのに捨ててしまうなど地球資源の無駄になっていることが多いと私たちは考えています。 「捨てる」をなくすために、個人間で簡単かつ安全にモノを売買できるフリマアプリ「メルカリ」を日本とアメリカで展開しています。

▼ 3つのバリュー(Go Bold, All for One, Be a Pro)

世界的なマーケットプレイスを創るために我々は集まっていますが、この目標への道のりは決して平坦ではありません。まだ誰も挑戦したことのないようなイノベーションや破壊的な創造を起こすため、我々は各自がオーナーシップを持ち、専門的能力を発揮することで、メルカリというチームとして最高のプロダクトを創ります。これを達成するために我々は3つのバリュー(Go Bold, All for One, Be a Pro) という全社員が共有する行動指針のもと行動しています。

▼ Engineering 組織が目指すもの

メルカリのEngineering組織では、「変化と挑戦を繰り返し続ける」「協力しあえる、共創できる」「多様性があり、自由度の高い選択肢がある」「オーナーシップを持ち、自ら決断をして進めることができる」組織を作り、常に大きな成果を生み出し続けることを目指しています。チーム一丸となり、Go Boldにオーナーシップを発揮して個が成長し、メルカリのミッションの実現に向けた挑戦をし続けていきます。



そして、スピードと品質の両立が高いレベルで求められる現場において、各プロジェクトの企画からリリースまで、開発プロセス全体に関わりながら、QA(Quality Assurance:品質保証)に関係する業務全般をご担当いただきます。








▼Minimum Requirements

・Experience in creation and operation of UI tests for smartphone apps and/or web systems

・Ability to communicate and explain problems effectively

・Experience in software development or test automation ( e.g. Appium, XCTest framework)

・Experience in solving problems and improving processes in your team

・English (basic conversational level)

・Japanese (business level)

▼ Preferred

・Experience as a QA manager (Including management of third party contractors)

・Experience in participating in design/development of smartphone apps

・Experience in selecting test tools or developing them yourself

・Experience in operating automation test

・QA experience in working within an Agile Scrum based development process

▼ Our Ideal Candidate
・Motivation to provide a high-quality service for our users

・Capable of taking on bold challenges and learning from mistakes

・Capable of working independently and taking the initiative to lead the team to success

・Possesses a strong sense of responsibility and works hard to achieve their goals

・Capable of communicating proactively and producing output in a highly global team




・開発 又は テスト自動化経験( 例. Appium, XCTest framework)


・英語でのコミュニケーション能力 (基本的な読み書きと会話能力)















▽Contract Type


 Probationary Period: 3 months (salary same as above)



▽Work Hours

・Fixed working hours 10:00-19:00

 Flex time (core hours 12:00-16:00, 60 minute lunch)


・Annual salary, paid monthly

・Based on your experience, skills and potential

・Reviewed twice a year


・Two days off per week, Japanese national holidays, New Year's vacation etc.

・Paid Leave, Bereavement Leave, Relax Days, Sick Leave








 フレックスタイム制度あり(コアタイム:12:00~16:00 [休憩60分] )






  • 完全週休2日制(祝祭日、年末年始 等)
  • 有給休暇、慶弔休暇、リラックス休暇、Sick Leave


・Health insurance

・Incentive program

・Employee stock ownership plan

・Full transportation coverage

・Custom PC

・Dual screen if needed

・Company smartphone

・Visa support

・New Employee Benefits at Mercari「mercibox












Engineering Manager Drink Meet-up article

Mercari Engineering Blog


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