Security Engineer, Product Application Security

Tokyo, Japan · Engineering · EN/JP


Mercari is looking for a security engineer to join our Security team in Tokyo. One of Mercari security team’s goals is to have development teams engaged with the security team as early as possible in the software development life cycle.

As a security engineer, you will perform threat modeling, code reviews, and security testing to minimize risks and ensure compliance. You will also collaborate with Mercari engineers from a variety of teams to architect and deliver projects securely. If necessary, you are even allowed to send a pull request to fix the bug as an example for developers. In addition, in this role, you will have an opportunity to improve Continuous Integration process for security, build automated test suites, integrate static analysis testing, creating tools to automate security tasks.



また、必要であれば開発者への例としてPull Requestを送り、バグを修正していただきます。さらに、このポジションでは、継続的インテグレーションの実装、自動テストスイートの構築、SASTの自動化の実施、セキュリティタスクの自動化ツール作成などに取り組んでいく機会もあります。

Successful candidate will have a chance to rotate between one or more of the following concurrent tasks:


▼Job Description



▼Minimum Requirements

▼Additional Qualifications

▼Our Ideal Candidate

・The ability to learn the latest security information and share their knowledge to others outside the company






▼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


・5-day work week (Sat/Sun off)

・National holidays, paid time off, summer/New Year's vacation, congratulatory leave, compassionate 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] )









・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












Mercari Engineering Blog


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