Minato Mercari, Inc.
本ポジションは日本語JDの用意がありません。

AI Research Scientist, R4D, Mercari


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.

About Mercari

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

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

Engineering Culture


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.


In the R4D team, We are seeking individuals with a high level of expertise in machine learning and computer vision, who have a strong interest in cutting-edge multimodal foundation models and can work autonomously.


In particular, we welcome candidates who are motivated to engage in research and development of large language models (LLMs) that handle multiple modalities such as images and text, as well as agentic AI systems that leverage these models.


As a member of our Tokyo-based team, you will contribute to developing AI technologies that power the next generation of e-commerce platforms.

See here for more information about our mission and values.

Work Responsibilities


Research and develop new technologies related to multimodal foundation models and generative AI, including computer vision and natural language processing (NLP).

Design and execute large-scale model training and conduct performance evaluations across multiple benchmarks.
Develop prototypes for new algorithms and present research 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.
Practical experience in computer vision or multimodal learning within the field of machine learning or generative models.
Record of publications in top-tier conferences or journals such as CVPR, ICCV, ECCV, or NeurIPS.
Development experience using general-purpose programming languages such as Python or C++.
Experience using machine learning frameworks such as PyTorch or TensorFlow.
Familiarity with modern development tools and cloud environments, including Git, Docker, AWS, or GCP.
Preferred Experience/Skills
3+ years of professional experience in software or research and development fields.
Experience training Large Language Models (LLMs) or Large Vision-Language Models.
Implementation experience in supervised learning, self-supervised learning, reinforcement learning, or graph learning, including pre-training and fine-tuning techniques.
Experience in building large-scale datasets.
Experience with Retrieval-Augmented Generation (RAG) and large-scale model deployment.
Experience in designing and operating distributed learning environments or training pipelines.
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.

Learn More About Mercari Group


Careers site:



Mercan:


Social media:
X / Linkedin

Recruiting at Mercari

At Mercari Group, we value empathizing with and embodying the mission and values of the Group and each company.

To promote the creation of an organization that maximizes the total amount of value exhibited by all members, we would like to understand the experience and skills of each candidate as accurately as possible.

Recruiting cycle at Mercari Group

Application screening

Skill assessment:
For engineering positions, you will be asked to complete a skill assessment on HackerRank or GitHub. For non-engineering positions, you may be asked to complete an assessment depending on the position. (The timing of the assessment may coincide with the interview process.)

Interview:
The number of interviews may vary depending on the position.

Reference check:
We will ask for online references around the timing of the final interview.

Offer:
Offers will be determined carefully in consideration of the final interview and the reference check.

Learn more about our recruiting process here.

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.

Please read and acknowledge our Privacy Policy prior to submitting your application.
Show more Show less

  • Minato Mercari, Inc. ¥8,000,000 - ¥20,000,000 per year

    We are seeking individuals with a high level of expertise in machine learning and computer vision, who have a strong interest in cutting-edge multimodal foundation models and can work autonomously. · Research and develop new technologies related to multimodal foundation models an ...


  • Minato Mercari, Inc. ¥1,200,000 - ¥2,400,000 per year

    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 ...


  • Minato City, Tokyo, Japan Mercari, Inc.

    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. · ...


  • Tokyo RAPSYS TECHNOLOGIES PTE LTD ¥1,200,000 - ¥1,500,000 per year

    We are seeking a talented and innovative Research Scientist specializing in Generative AI to join our dynamic team. · Conduct cutting-edge research on generative models and algorithms · Develop novel methodologies to enhance AI capabilities · Collaborate with cross-functional tea ...


  • -Tokyo - Roppongi Sony $150,000 - $200,000 per year

    Sony AI seeks a Research Scientist to lead the integration of AI technologies in digital chip design. · ...


  • Minato Sony Full time¥1,200,000 - ¥3,000,000 per year

    Sony AI is seeking a highly motivated, visionary Research Scientist with deep expertise in Digital Circuit Design, digital circuitry for image processing algorithms, and Machine Learning / AI to join our extraordinary research team. · Join our team of renowned scientists explorin ...


  • Tokyo Rakuten $100,000 - $150,000 per year

    +We are seeking an innovative and dedicated Research Scientist to join our Large Language Model (LLM) Research team.+ · +Position Details+We welcome exceptional researchers and engineers from other fields who may not have direct experience in generative AI to apply. · +Drive and ...


  • Tokyo Sony InternshipSHIP¥6,000,000 - ¥8,000,000 per year

    We are seeking Research Scientist Interns to join our fundamental and applied research teams at Sony in Tokyo. · To achieve this, we work together with Sony Pictures Entertainment to develop AI technologies that restore and enhance movie content.You will research and develop inno ...


  • Tokyo Sony Full time¥8,000,000 - ¥15,000,000 per year

    We are seeking Research Scientist to join our fundamental and applied research teams at Sony in Tokyo. · To achieve this we work together with Sony Pictures Entertainment to develop AI technologies that restore and enhance movie content. · ...


  • Tokyo Sony InternshipSHIP¥2,000,000 - ¥2,800,000 per year

    We are seeking Research Scientist Interns to join our fundamental and applied research teams at Sony in Tokyo. · ■ Research and development of novel computer vision technologies in areas including generative methods, · audio-visual scene understanding, audio-visual sound separati ...


  • Tokyo Sony Full time¥2,000,000 - ¥2,800,000 per year

    We are seeking Research Scientist to join our fundamental and applied research teams at Sony in Tokyo. Our aim is to rapidly advance the process of cinematic content creation. · We will research and develop innovative computer vision and machine learning technologies for cinemati ...

  • Product Manager

    3週間前


    Minato Mercari, Inc. InternshipSHIP¥4,800,000 - ¥7,200,000 per year

    新卒として入社可能な方を募集しています。インターンシップでは、メルカリ・メルペイ・メルコインの企画開発運用や機能の企画実現などを行い、エンジニアーやデザイナーとの連携も行います。 · ...

  • Product Manager

    1ヶ月前


    Minato Mercari, Inc. ¥9,000,000 - ¥12,000,000 per year

    Product Manager / プロダクトマネージャー(Search & Discovery) - Mercari Marketplace · メルカリの検索、推薦機能におけるプロダクトビジョン策定/戦略立案 · 事業影響、定量/定性分析、上位戦略に基づくプロダクトバックログ管理 · 様々な職種と協働しながらのプロダクトデリバリー、成果創出 · エンジニア、デザイナーが参加する自律的なプロダクトチームのリード · 関連部署とのアライン/交渉 · スマホアプリ市場における3年以上のプロダクトマネジメント経験 · ソフトウェア開発(アジャイル開発手法含む ...


  • Minato Mercari, Inc. ¥4,500,000 - ¥9,000,000 per year

    New Graduate Recruiter / · メルカリグループでは、新卒採用を「中長期的な視点で新卒メンバーを採用し育成することを、会社の重要な文化とする」と位置づけています。 · 私たちは新卒メンバーを、将来のメルカリの事業や組織を牽引する「経営幹部候補」として迎えます。そのため現在は、規模を追うだけでなく、真にカルチャーにマッチし変革を起こせるポテンシャルを持つ人材の採用を行っています。 ...


  • Minato City Mercari, inc. ¥2,500,000 - ¥4,000,000 per year

    This job requires Japanese language ability. Mercari is seeking a new graduate recruiter to join their team, focusing on medium- and long-term strategies for hiring new graduates. · ...

  • Security Engineer

    2ヶ月前


    Minato Mercari, Inc. InternshipSHIP¥3,000,000 - ¥6,000,000 per year

    This internship provides an environment where you can engage in experience design with a management perspective, not just engineering tasks, and grow into a leader who will drive the Mercari Group in the future. · Participate in threat modeling, code reviews, and security testing ...

  • Product Manager

    1ヶ月前


    Minato Mercari, Inc. ¥1,500,000 - ¥2,500,000 per year

    メルカリモバイルに関するプロダクトマネジメント、サービスグロース実現のための企画立案・分析・リサーチ実施、開発の要件定義・優先順位付け・進捗管理、関係部門とのコミュニケーション · メルカリモバイルに関するプロダクトマネジメント · サービスグロース実現のための企画立案・分析・リサーチ実施 · 開発の要件定義・優先順位付け・進捗管理 · 関係部門とのコミュニケーション · メルカリのミッションとバリューに共感していただける方 · インターネットサービスのプロダクトマネージャーまたは同等の経験2年以上 · 要件定義書・仕様書の作成経験 · ソフトウェア開発 ...

  • Project Manager

    4週間前


    Minato IQVIA ¥8,000,000 - ¥10,100,000 per year

    IQVIAは、ヒューマンデータサイエンスの先駆者として、医療・ヘルスケアの未来を切り拓く革新的なソリューションを提供しています。世界最大規模の医療・ヘルスケア関連データを基盤に、人・データ・サイエンスを融合させます。 · ...


  • Minato Mercari, Inc.

    + Full-time position in Tokyo with flexible working hours. · + Work closely with management team to accelerate business growth through strategic investments. · + Experience in M&A execution (DD, valuation), contract negotiations highly valued. · + Strong communication skills nece ...


  • 東京都 港区, IQVIA ¥3,000,000 - ¥9,000,000 per year

    IQVIAの新卒採用チームです。グローバルリーディングカンパニーで、ヘルスケアや人々の健康の進展に取り組んでいます。 · ...


  • 東京都 港区 芝大門, 株式会社True Data Remote job¥2,000,000 - ¥2,800,000 per year

    日本最大級の購買データを活用し、企業の経営課題を解決する。リモートワーク中心の柔軟な働き方でパフォーマンスを最大化することができる。 · ...