Software Engineer, Backend (Ads)

Circulate all forms of value to unleash the potential in all people

"What can I do to help society thrive with the finite resources we have?" The Mercari marketplace app was born in 2013 out of this thought by our founder Shintaro Yamada as he traveled the world. We believe that by circulating all forms of value, not just physical things and money, we can create opportunities for anyone to realize their dreams and contribute to society and the people around them. Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential.

Equal Opportunity Hiring

Here at Mercari, we work to realize a world in which no one’s potential is limited by their background and everyone has the opportunity to freely create value. We also firmly believe that a mindset of Diversity & Inclusion is essential for us to achieve our mission.

This, of course, extends to our hiring practices as well. Mercari is committed to eliminating discrimination based on age, gender, sexual orientation, race, religion, physical disability, and other such factors so that anyone who shares our mission and values can join us, regardless of their background. 

Team’s Mission / Work Responsibilities

Team mission:

To realize Mercari’s vision of leading the circular economy, we aim to provide new tools to businesses involved in the production and sale of products, adding value to the primary distribution value chain.

Specific work responsibilities include the following:

• Launching a new platform for the advertising business.
• Building and implementing the architecture for the advertising system.
• Improving and optimizing advertising performance.
• Developing mechanisms to streamline advertising operations.

Unique and Bold Challenges

• Launching an advertising solution on a media platform with over 20 million MAU (Monthly Active Users).
  • Mercari currently does not offer advertising solutions. However, it is anticipated that if Mercari were to provide advertising solutions, it could have a significant impact on the Japanese advertising market.
• Taking a challenge on revolutionizing advertising beyond boundaries
  • Advertising solutions are already available on many platforms, and there are numerous success stories. By leveraging the strengths of existing solutions, it is possible to provide an even better solution.

Required Qualifications

• Shared understanding and belief in our company’s mission and values
• Experience in developing and operating large-scale system, as well as experience in technology selection and codebase improvement
• Experience in API development using languages such as Go, PHP, Java, and more.
• Design and development capability with a focus on performance and scalability
• Experience in the development and operation of advertising systems

Preferred Qualifications

• Project management or team leadership experience
• Communication skills to collaborate with stakeholders and drive product development
• Experience in development and operations using Microservices architecture
• Knowledge and experience in databases (RDBMS/NoSQL), networking, Linux, monitoring systems, logging, operations, and SLO/SLA
• Experience in development in the cloud, particularly with GCP or AWS.

Screening Criteria

• Shared understanding and belief in our company’s mission and values
• Proactive, flexible, and quick-thinking
• Take responsibility for their tasks and can make maximum efforts
• Thrive in ambiguous and uncertain situations, and focus on finding solutions rather than dwelling on limitations.
• Proactively acquire knowledge beyond their designated areas and collaborate with team members to support one another
• Enjoy embracing diverse changes, always seeking improvement and growth
• Consistently propose improvement ideas and take proactive actions

Key Points for Technical Assignments

• Capable of identifying challenges in advertising architecture and suggesting improvements

Language Requirements

1. Either of the following is required:
   • English: Proficient (CEFR - C1) / Japanese: Independent (CEFR - B2) preferred
   • English: Independent (CEFR - B2) preferred / Japanese: Proficient (CEFR - C1)

Working Conditions

Employment Status

Full-time

• Probationary period: First 3 months after joining the company. (During this period your contract conditions will be the same as that of a permanent employee.)

Office

Roppongi

• Smoking is prohibited within our offices
• Mercari has 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. *Exceptions made for certain kinds of work.

Work Hours

• Full flextime (no “core time” or “flex time”) *Does not apply to all positions

Holidays

• Two days off per week (as well as national holidays, New Year's break, etc.)
• Paid leave, congratulatory and bereavement leave, relax days, sick leave

Salary

• Annual salary paid in 12 monthly installments (including fixed overtime allowance)
• Based on skills, experience, and abilities
• Reviewed twice a year

Benefits

• Complete health and social insurance
• Incentive program
• Support systems, including those that benefit the employee’s family members 

Support

• Relocation support
• Language learning support
• Translation/interpretation support