About JAPAN AI
JAPAN AI, Inc. was established in April 2023 as a group company of Geniee, Inc., a publicly listed company, with the aim of dramatically enhancing the potential of working people through AI technology. We leverage cutting-edge AI technology to drive research and development both domestically and internationally.
We focus particularly on the development of AI agents, offering innovative products and solutions utilizing large language models (LLM). This enables us to improve productivity and operational efficiency across various industries.
JAPAN AI takes advantage of the flexibility and rapid decision-making of a startup to quickly adopt the latest technologies, providing optimal solutions to clients. Our diverse team with an international perspective enhances our competitiveness in the global market.
We aim to create new value and contribute to the progress of society as a whole through the transformative power of AI. Let's lead innovation through AI and create a future where technology enables people to achieve more.
For more details, please visit our website: JAPAN AI, Inc.
Why We’re Hiring
As we anticipate rapid business expansion, we are seeking a Senior Engineer who can lead research, development, and product implementation in advanced technical domains.
In particular, to accelerate research and large-scale development in the AI Agent domain, we urgently need to strengthen our team with engineers who can contribute to the development of core backend frameworks.
Position
Senior Backend Engineer (AI Agent Framework Team)
Role : Tech Lead or Member
You will be responsible for enhancing and optimizing the AI Agent Framework, which is utilized across our organization.
This position involves leading the implementation of complex features, such as a high-speed, scalable, multi-tenant runtime environment and interactions between multiple agents, while collaborating with internal and external development teams.
Job Description
As a Senior Backend Engineer, you will:
- Design and develop the AI Agent Framework:
- Lead the development of core components, primarily in Python, to create a robust and scalable framework.
- Build architectures for agent collaboration:
- Develop systems that enable seamless interaction and cooperation between AI agents, ensuring extensibility and adaptability.
- Implement and operate scalable runtime environments:
- Create multi-tenant runtime environments optimized for real-time inference and performance in cloud-native settings.
- Collaborate with research teams:
- Work closely with researchers to translate cutting-edge advancements in LLMs and AI Agents into practical product features.
- Lead the team:
- Drive technical decision-making, improve development processes, and mentor other engineers to foster their growth.
- Optimize performance:
- Continuously enhance system performance, ensuring reliability and efficiency in large-scale deployments.
This role offers the opportunity to work on groundbreaking technologies that push the boundaries of AI and software engineering.
Team Structure
Approximately 65 members are part of the development organization. Development is divided into the following groups:
- Client Solution Development
- In-house AI SaaS Development
- Common Infrastructure Development (Infra / Data / AI R&D)
Required Qualifications
We are looking for candidates with:
- Bachelor's or Master's degree in Computer Science, Software Engineering, Artificial Intelligence, Machine Learning, Mathematics, Physics, or related fields
- Practical experience in application development using Python (5+ years)
- Practical experience in machine learning (3+ years)
- Machine Learning Algorithms : Basic understanding and implementation experience in regression, classification, clustering, etc.
- Data Preprocessing : Skills in data cleaning, transformation, and feature engineering
- Model Evaluation : Understanding and application of evaluation metrics such as accuracy, recall, and F1 score
- Practical experience in natural language processing (3+ years)
- Text Processing Techniques : Experience using natural language processing libraries (NLTK, spaCy, Transformers, etc.)
- Language Models : Experience in fine-tuning pre-trained models such as BERT, GPT, RoBERTa
- Experience with cloud platforms (AWS, GCP, or Azure) and container technologies (Docker, Kubernetes).
- Business-level communication skills in either English or Japanese (proficiency in one is required).
Preferred Qualifications
Candidates with the following experience or skills will be highly regarded:
- Development or research experience in AI/ML, chatbots, Generative AI, NLP, or agent frameworks.
- Expertise in distributed systems or performance optimization in large-scale data environments.
- Knowledge of multi-agent system design and implementation, including frameworks for agent collaboration.
- Experience in team leadership or management, or a strong desire to take on technical leadership roles.
- Practical experience working in multinational environments or overseas.
Tech Stack
Languages: Python (for framework development), TypeScript / React / Next.js (for frontend development)
Infrastructure: GCP (containers / Kubernetes), Docker
Tools: Slack, Confluence, Jira, Google Workspace, GitHub
Work Environment: Mac (Apple Silicon), dual monitors available
Learning and Development Support
- AI Tool Usage Support:
- Company covers the cost of using AI tools such as JAPAN AI SaaS services, Curosor, CharGPT, Claude, etc.
- Development Tool Support:
- If a desired development tool is paid, the cost is covered (up to 30,000 yen per year)
- Book Purchase Assistance:
- Company covers the cost of purchasing books for learning, such as technical books (up to 30,000 yen per half-year)
- Language Learning / Qualification Support:
- Company covers the cost of Japanese or English learning programs and qualification acquisition
- Refresh Allowance:
- Company covers the cost of services used for personal refreshment (up to 5,000 yen per month)
- e.g., gym, yoga, chiropractic, aquarium, movies, theme park tickets, etc.
- Housing Allowance:
- Housing allowance provided for those living in designated areas (up to 30,000 yen per month)
Work Style
Hybrid Work: 3 days in office, 2 days remote
Flexible working hours: Core time is negotiable
Flexibility: Future consideration for more flexible work styles is possible
Why You’ll Love This Role
- Opportunity to engage with cutting-edge technology:
- Gain practical experience in the rapidly growing field of large language models and AI agents, significantly enhancing technical skills.
- Discretion and speed:
- Benefit from the rapid decision-making process unique to startups, enjoying flexibility in the adoption of new technologies, creating an environment where individual ideas can be quickly realized.
- Diverse and multicultural team:
- Work with an internationally diverse engineering team, deepening cross-cultural understanding and fostering a global perspective. Positions not requiring Japanese language skills are also available.
- Impactful work:
- Play a crucial role in shaping the future of AI-driven products, directly contributing to the success of clients and industries, experiencing the impact on society.
- Professional growth:
- Contribute to technical strategy, demonstrate leadership, and grow with a highly skilled team, preparing for the next step in your career.
Selection Process
CV Screening → Coding test → Multiple Interviews → Final Interview
(Reference checks are required before the final interview.)
Additional Information
This position will initially be hired by Geniee, Inc. and then seconded to JAPAN AI, Inc. (both companies share the same location and workplace).
There is a possibility of transferring to JAPAN AI, Inc. in the future.
職種 / 募集ポジション | 【JAPAN AI】Senior Backend Engineer (AI Agent Framework) |
---|---|
雇用形態 | 正社員 |
給与 |
|
勤務地 |
会社名 | 株式会社ジーニー |
---|---|
事業内容 | ・広告プラットフォーム事業 ・マーケティングSaaS事業 ・海外事業 ・デジタルPR事業 |
設立年月日 | 2010年4月14日 |
代表者 | 代表取締役社長 工藤 智昭 |
資本金 | 100百万円(連結、2024年9月末現在) |
従業員数 | 617名(連結、2024年3月末現在) |
本社所在地 | 東京都新宿区西新宿6-8-1 住友不動産新宿オークタワー5/6階 |
就業時間 | 10:00~19:00 ※土日祝は休業日となります ※出向の場合は、出向先の規程に準じます |
福利厚生 | 【待遇・福利厚生】 <正社員> ・書籍購入補助(半期 30,000円まで) ・リフレッシュ手当(毎月 5,000円まで) ・部活動手当(毎月5,000円まで) ・家賃手当(当社指定の駅を対象とし毎月30,000円まで) ・シャッフルランチ/ディナー(四半期に一度ランチ1,000円まで、ディナー5,000円まで) ・資格取得支援制度、英語学習支援制度(業務に必要な場合のみ) ・リフレッシュ休暇制度(3年間継続勤務した社員へ毎年付与される特別休暇 2日) ・定期健康診断(年1回) ・従業員持株会 <契約社員> ・書籍購入補助(半期 30,000円まで) ・リフレッシュ手当(毎月 5,000円まで) ・部活動手当(毎月5,000円まで) ・シャッフルランチ/ディナー(四半期に一度ランチ1,000円まで、ディナー5,000円まで) ・リフレッシュ休暇制度(3年間継続勤務した社員へ毎年付与される特別休暇 2日) ・定期健康診断(年1回) 【保険】 ・社会保険完備 【諸手当】 ・交通費全額支給 |
代表プロフィール | 早稲田大学大学院卒業後、株式会社リクルート(現 株式会社リクルートホールディングス)へ入社。2010年4月株式会社ジーニーを創業、代表取締役社長に就任。2023年4月には戦略的AIカンパニーJAPAN AI株式会社を設立し、同社の代表取締役社長を兼任している。 |
企業成長ランキング | ■ Financial Times社発表のアジア成長企業ランキング2020を受賞 Financial Times社とStatista社が、アジア太平洋地域12カ国5,000万以上の企業を対象に実施した調査で、飛躍的活躍を遂げた企業500社に選出されました。 |
休日休暇 | 完全週休二日制 所定休日:土・日・祝日 休暇:年次有給休暇、夏季休暇(3日)、年末年始休暇(12月31日〜1月3日)、慶弔休暇 |
グループ会社 | CATS株式会社(日本) JAPAN AI株式会社(日本) ソーシャルワイヤー株式会社(日本) Geniee International Pte., Ltd.(シンガポール) Geniee Vietnam Co., Ltd.(ベトナム) PT. Geniee Technology Indonesia(インドネシア) PT. Adstars Media Pariwara(インドネシア) Zelto,Inc.(米国) AdPushup Software India Pvt Ltd.(インド) |
備考 | ・試用期間 正社員/契約社員:1か月 ・受動喫煙対策 敷地内禁煙(屋外に喫煙場所設置) ・従事すべき業務の変更の範囲 会社の定める業務 ・就業の場所の変更の範囲 会社の定める場所 ・有期労働契約を更新する場合の基準に関する事項(通算契約期間又は更新回数の上限を含む) 更新の上限なし |