Job Description
- Employment Status: Full-time
- Work Hours: Full Flextime (no core time)
- Office: Roppongi
For more details, see the Overview of Our Positions section on our Careers site.
Organization/Team Mission
Mercari Engineering Principles
Mercari Engineering Principles are a shared understanding that serves as the foundation of engineering beliefs and behavior at Mercari. The Engineering Principles are designed to complement the organizational identity (Mercari’s mission, values, and culture) from an engineering viewpoint.
These principles ultimately help us achieve Mercari’s mission by defining the ideal state we seek to realize in the long term.
- Passion For The Product
- Grow Together
- Solve Through Mechanisms
- Collaborate Openly
For more details, please see the following link:
Mercari R4D is a research and development organization established in December 2017 with the goal of social implementation of advanced technologies.
“R4D” stands for Research and the four D’s: Design, Development, Deployment, and Disruption — representing our mission to bridge research, innovation, and real-world impact.
We are seeking individuals with a high level of expertise in machine learning or computer vision, who have a strong interest in cutting-edge multimodal foundation models and can work autonomously. We welcome candidates who are motivated to analyze large-scale data obtained from the market, understand its characteristics, and propose technical solutions for machine learning and performance evaluation. As a member of our Tokyo-based team, you will contribute to creating AI technologies that support the next generation of e-commerce platforms.
See here for more information about our mission and values.
Responsibilties
- Develop data strategies for the collection, sampling, labeling, handling, and utilization of massive datasets to improve the performance of machine learning models that power next-generation e-commerce platforms.
- Design and enhance scalable data pipelines and automation for machine learning and performance evaluation.
- Analyze large-scale data to understand its characteristics, propose technical solutions for machine learning and performance evaluation, and present the results both internally and externally.
- Collaborate with researchers, engineers, and business teams to research and implement advanced technologies for next-generation AI services.
Unique Challenges
- Experience a rare position that will allow you to take on the highly valuable challenge of implementing the results of your research into society.
- Collaborate with researchers from universities, enabling us as a private company to carry out long-term research projects that are not bound by conventional frameworks.
- In particular, you will have the opportunity to dive into state-of-the-art technology in AI field and update your strong skill set in AI, Computer Vision, and AR/VR domain.
Qualifications
Required Experience/Skills
- Ph.D. in Computer Science or a related field, or equivalent professional experience.
- At least 2 years of experience in data science or related fields, including theoretical knowledge in machine learning (deep learning, statistical analysis, mathematical modeling, etc.).
- Experience in software development using Python (numpy, scipy, scikit, pandas) and databases.
- Experience using machine learning frameworks such as PyTorch or TensorFlow.
- Familiarity with modern development tools and cloud environments such as Git, AWS, or GCP.
Preferred Experience/Skills
- 5+ years of experience in data science or related fields.
- Experience analyzing large-scale databases (petabyte level).
- Experience in building large datasets.
- Experience building and managing infrastructure with Docker, Kubernetes, Jenkins, Terraform, GitHub Actions, or similar tools.
- Business-level Japanese proficiency, with smooth reading, writing, and listening skills.
Language
- Japanese: Independent (CEFR - B2) preferred
- English: Independent (CEFR – B2)
For details about CEFR, see here.
About the Company
Our Mission
Mercari is a Japan-based company with the mission of “creating value in a global marketplace where anyone can buy & sell.” Having continuously worked toward this goal since our founding in 2013, we are now transforming from a startup into a global player. While this transformation brings its own specific set of challenges, we believe that solving them one after another will allow us to fully achieve our mission. Are you interested in working together to take on these exciting challenges?
Our Culture
Mercari’s culture has been central to the company since our founding, with the three core values of Go Bold, All for One, and Be a Pro. In addition, the “Trust & Openness” value was introduced to embody our culture of mutual trust, where information remains transparent and rules are kept to a minimum. Regardless of how big Mercari gets, our culture is essential to achieving our mission and will be promoted throughout our organization.