Engineering Manager, Backend

Tokyo, Japan · Engineering · EN/JP


(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.

▼ 我々のミッション

「新たな価値を生みだす世界的なマーケットプレイスを創る」というミッションを掲げ、あらゆる挑戦をしております。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。

▼Job Description

We are looking for someone who can navigate obstacles, negotiate with stakeholders and grow their team members to optimize their output both as individuals and as a team. The backend team works on the development and operation of the Mercari API, the framework supporting the entire company. Mercari is currently transitioning from our existing monolithic system to microservices, leading to significant changes and expansion within the team. Amidst these conditions, the engineering manager must propose and implement measures to support members grow and to help expand the team. These are part of a larger effort to ensure that the backend team functions properly within Mercari and helps the company maximize its output.


Proposing and implementing strategies to solve problems and improve our engineering organization, such as:

Maximizing engineering output and encouraging career growth through tasks such as:


我々は、障害を乗り越え、関係者と交渉し、チームメンバーを成長させて、個人としてもチームとしても自分たちの成果を最適化できるマネージャーを求めています。Backendチームはメルカリ全体を支える屋台骨となるMercari APIを開発・運用するチームです。メルカリでは既存のMonolithicなシステムのMicroservices化を推進しており、その中でチームはさらに大きく変化・拡大しています。このような状況にあるBackendチームにおいて、Engineering Managerには、メンバーの支援・育成、チーム組織の拡大、およびこれらに付随する施策の提案・実施などを行うことで、Backendチームをメルカリ全体に対して有効に機能させ、組織全体の成果を最大化することが求められます。



(Japanese follows English)

▼Minimum Requirements

・Strong understanding of the company mission and values

・Experience developing with backend technology

・Management experience

・Experience with interdepartmental coordination

・Experience mentoring engineers

・Experience hiring engineers (screening applications, interviewing, direct recruiting, hosting events, etc.)

・Experience of scrum


・Ability to use English and Japanese for business duties

・Experience designing architecture for an entire system

・Experience making technical decisions for a team as a tech lead

・Experience operating systems that use microservice architecture

▼Our Ideal Candidate

・Those who are motivated to make changes themselves to improve the organization, and involve and execute relevant people

・Capable of understanding individual engineer’s motivations and encouraging their personal growth along with the business’s growth

・Possesses strong communication abilities for solving organizational problems

・Capable of taking responsibility for engineer hiring and training, and possesses a long-term vision for engineer growth












・Tech Leadとしてチームの技術判断をした経験

・Microservice Architectureのシステム運用経験



・エンジニアの WILL / CAN / MUST を適切に理解しながら、事業の成功とエンジニアの成長にコミットできる方











 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

▽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


(English follows Japanese)










・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(Japanese)

Meet backend tech lead

Mercari Engineering Blog


About C to C marketplace mercari(English)

About Mercari, Inc(English)

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