Engineering Manager, AI/LLM – Mercari

  • Anywhere

This position requires English language ability. JD is available in English only.  本ポジションは日本語JDの用意がありません。


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.For more information about Mercari Group’s mission, see Mercari’s Culture Doc.

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 Inclusion & Diversity 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. For more details, please read our I&D Statement.

Team’s Mission / Work Responsibilities

What You’ll Do

Engineering managers are committed to creating organizational structures and solving organizational issues, creating a place where engineers can play more active roles.
Mercari’s engineering organization has members from a variety of backgrounds. By managing teams with diversified experiences, nationalities, cultures, etc., they are responsible for drawing out the potential of teams and individuals and producing greater results.
The AI/LLM Team serves two main functions: leading and supporting applications of AI/LLM technologies into our existing products, and building new products to create business impact while learning about these technologies. You will be enabling our team of engineers to boldly implement these new technologies into society and creating major business results in the process
The main components of the role are as follows:

Recruiting, training, goal setting, evaluation, and providing feedback to engineers
Maximizing the results of engineer members and supporting their career growth
Assigning engineers to projects and supporting the communication needed to carry them out
Problem solving for the engineering organization as well as proposing and executing growth strategies
Planning and implementation of in-house events to deepen understanding of expertise and organization

As an engineering manager in the AI/LLM team, you are expected to maximize Mercari’s output through machine learning. The AI/LLM team uses technology like artificial intelligence, machine learning, and deep learning to improve Mercari’s UX, with an emphasis on image recognition, NLP, and algorithms for recommendations.
As this team is made up of a select few, yet spans all of Mercari Group’s businesses in Japan, you will be expected to take on a broad range of responsibilities.

Unique and Bold Challenges

We are looking for people that are interested in our services, mission, and values, and want to work where engineers can go bold, use the latest technology, make autonomous decisions, and take on challenges at a rapid pace.
This position also provides the unique experience of managing a team that is involved in both launching and operating large-scale services using ML, as well as conducting more research-oriented projects.

Minimum Requirements

Shared understanding and belief in Mercari Group mission and values 
Professional knowledge of AI/ML with specialization in at least one of the following:

Natural language processing

Hands-on experience developing and deploying ML systems for production
Experience as a manager for engineers or researchers
Developing and operating large-scale products
Project management experience for machine learning projects
Coordinating with multiple stakeholders

Preferred Qualifications

Making technical decisions for a team as a tech lead
Hands-on experience with Generative AI technologies such as LLMs.
Designing the architecture of an entire system
Managing a multicultural team
Experience writing articles/theses in AI/ML fields
Experience designing and training ML models using large-scale data and managing datasets and data pipelines
Experience training AI/ML engineers and/or researchers
Hiring AI/ML engineers (application screening, interviewing, direct recruiting, event hosting, etc.)
Knowledge of and experience with databases (RDBMS/NoSQL), networks, linux, monitoring systems, logging, operations, and SLO/SLA
Development and operation using microservices architecture
Cloud development experience (preferably GCP or AWS)
OSS contribution experience / familiar with OSS community

Language Requirements

English: Independent (CEFR – B2)
Japanese: Basic (CEFR – A2) optional

* For details about CEFR, see here

Related Articles

Mercari Establishes New Team Dedicated to Generative AI/LLM

Working Conditions

Employment Status


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.)



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


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


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


Complete health and social insurance
Incentive program
Support systems, including those that benefit the employee’s family members
*See this page for details.


Relocation support
Language learning support
Translation/interpretation support
*See this page for details.


Corporate Sites

Mercari, Inc.

Merpay, Inc. [Japanese]

Mercoin, Inc.
Mercari US

Owned Media

Mercari Careers
Mercari Engineering Portal
Mercan – Introduces the people that make Mercari
Mercari US Careers
Mercari US Blog

Originally posted on Himalayas

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