About Mercari

Mercari is a marketplace app that makes it easy for people to safely sell and ship their things. Having been downloaded over 100 million times, it is now among the largest peer-to-peer selling platforms globally.

Though we have over 1,800 employees, we still have a startup culture, where we encourage people to come up with big, crazy ideas, and to not be afraid of failure. Because the company is rapidly growing, you can set your own path, and there is enough transparency to allow our members to do so. For instance, at our all-hands meetings, every single member is encouraged to ask questions directly to our executive team.

We’re a Japanese company, but are building a global work culture, and so we provide a great opportunity to experience a blend of Japanese and international culture. We relocate developers from around the world to join our team, and provide translation and interpretation to smooth communication between members.

We want our employees to be able to give 100% both inside and outside of the office, and our benefits reflect this. These include providing language education, financial support for childcare, and allowing you to pursue paid side gigs outside of working with us.

Our response to COVID-19

In response to COVID-19, Mercari began its work-from-home policy on February 19, 2020. On September 1, 2021, Mercari introduced a work style policy called “Your Choice.” Each member is free to choose whether they want to work in the office or work fully remote.

About the position

Mercari is looking for a security engineer to join our Product Security Team in Tokyo. The Product Security Team ensures that Mercari products meet security requirements and investigates, tracks, and assists in fixing security issues. The team strives to be a business enabler working on a variety of tasks and applying a risk-based approach to security-related decision making.

As a Product Security Engineer you will be responsible for eliciting and communicating security requirements to product teams, performing threat modeling, design reviews, and security testing. You will also be involved in evaluating, designing, developing, and deploying automated security assessment solutions (DAST, SAST, SCA, etc.) and take on the challenge of ensuring the safety of Mercari’s development lifecycle.

Responsibilities

Bold Challenges

Requirements

Nice to haves

These aren’t required, but be sure to mention them in your application if you have them.

Meet Mercari's Developers

Joining Mercari as a tech lead

with Jieqiong Yu

Jieqiong shares her experience of joining Mercari and working as a tech lead. She explains their engineering culture and provides tips for potential applicants.

Read her story...

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