【AI Agent Engineer】Global Digital Consulting Firm / Hybrid / JLPT N2~
- Hiring from
- Japan
- Work type
- Hybrid
- Posted
- Sep 29, 2026
★AI Agent Engineer | Prime SIer
- Business Level Japanese REQUIRED (N2 Level)
✦Fully Remote Work
✦Listed Company
✦Global Environment
★Annual salary: 6 million yen - 11 million yen
-------------【About the company】-------------
The company supports the clients' business transformation by combining strategic thinking, user experience-based design, and cutting-edge technology.
At the company, business producers and PMs with knowledge of the digital domain are involved from the proposal stage, supporting new business planning and the digitization of existing businesses from the planning and design of business models. For development projects, we provide one-stop services for all stages of the process, including UX research and design, UI design, brand development, and digital product development.
By supporting companies' digital strategies, they contribute to the promotion of DX and create new business opportunities.
-------------【 Job Description】-------------
Responsibilities
The company serves as a technology partner that aligns closely with clients' challenges to co-create solutions through cutting-edge technology and flexible approaches.
As a Tech Lead who forms the technical core of AI agent development, this position will spearhead projects focused on next-generation AI agents utilizing LLMs (Large Language Models) as well as AI-driven (AI-Native) development.
Moving beyond the simple utilization of AI models, the mission is to maximize client business value by leading the architecture design and implementation required for agents to reference "accurate knowledge (data)" and "autonomously execute tasks" while integrating seamlessly with external systems.
Specifically:
【Architecture Design & Implementation of AI Agents】
Select technologies and design agent architectures (such as ReAct, Plan-and-Solve, etc.) using frameworks like LangChain, LlamaIndex, and AutoGen based on client business challenges.
Develop agent reasoning processes, including prompt chaining and reasoning loops.
【End-to-End Design & Construction of RAG (Retrieval-Augmented Generation) Systems】
Select and set up Vector Databases such as Milvus, Weaviate, and Pinecone.
Design and construct data ingestion and preprocessing pipelines for RAG, leveraging a variety of client data sources including databases, documents, and APIs.
【Development of Function Calling (Tool Integration) Infrastructure】
Design and implement integrations with external APIs and internal systems utilized by the AI agents.
【Construction of AI Application Infrastructure】
Develop backend APIs (using Python/FastAPI, Node.js, etc.) to execute AI agents.
Build scalable execution environments on cloud platforms including GCP, AWS, and Azure.
【Technical Leadership & Team Collaboration】
Lead technology selection and architecture reviews in coordination with domestic and international development teams.
Stay updated on and implement the latest LLM-related methodologies, including RAG, fine-tuning, and MLOps.
【Example Development Environment】
AI / LLM
・LangChain, LlamaIndex, AutoGen, CrewAI, etc.
・OpenAI API, Vertex AI, AWS Bedrock, Azure OpenAI Service
・VectorDB: Milvus, Weaviate, Pinecone, Chroma, Qdrant, etc.
Languages
・Python (FastAPI, Django), Node.js (TypeScript), Go, Java, Ruby, etc.
Cloud
・GCP, AWS, Azure
Infrastructure & Containers
・Docker, Kubernetes, Terraform, GitHub Actions (CI/CD)
Data Pipeline
・Airflow, Dagster, dbt, Fivetran, etc.
Data Platforms (Integration Targets)
・BigQuery, Snowflake, Redshift, Databricks, Kafka, PubSub, etc.
Development Support & Management
・GitHub, GitLab, JIRA, Slack, Cursor, GitHub Copilot, etc.
【Recruitment Background】
To increase headcount for business expansion.
【Position Highlights】
・Build a Career at the Forefront of AI Agent Development:
Deeply engage with cutting-edge technologies such as generative AI, RAG, and autonomous agents through hands-on practical projects.
・Maximize Strengths in Data and Backend Engineering:
Data pipeline construction skills and backend development skills will serve as critical assets that directly impact the output accuracy and operational stability of AI agents.
・End-to-End Involvement from Planning to Technology Selection and Implementation:
Beyond pure implementation, there are numerous opportunities to drive architecture design and technical proposals that solve client challenges directly.
・Remote Work & Flextime Options:
A system designed to support flexible working styles.
・Technical Growth in a Global Environment:
Opportunities to collaborate with international teams, supported by available English language training programs.
【Career Paths】
The company offers a broad range of career paths. In addition to organizational management, employees can also shape their careers as highly specialized experts.
-------------【 Requirements】-------------
【Required】
Experience in backend development using Python or in developing data pipelines
Experience developing applications that utilize LLM APIs such as OpenAI API, Gemini, and Anthropic API
Experience using LLM application frameworks such as LangChain and LlamaIndex
Experience designing and building end-to-end RAG systems
Practical experience building data collection and preprocessing pipelines from diverse data sources (databases, documents, APIs, etc.)
Experience selecting, building, and operating VectorDBs (e.g., Milvus, Weaviate, Chroma)
Experience building systems in a cloud environment (GCP, AWS, or Azure)
Experience collaborating with clients and other teams to lead the process from requirements definition through design and development
Proactive approach to staying current with modern technologies and a strong desire to learn
【Preferred】
Candidates with the following experience can immediately contribute as key assets in building a more scalable and highly reliable AI agent infrastructure.
・Data Engineering
Experience designing and constructing large-scale data warehouses (BigQuery, Snowflake, Redshift, etc.).
Experience designing and constructing general-purpose ELT/ETL data pipelines using tools like dbt and Airflow.
Deep understanding of SQL and experience with performance tuning.
・Backend Development
Experience developing robust APIs using Python (FastAPI, Django, etc.), Node.js, Go, or similar languages.
Experience building infrastructure (IaC) using Docker, Kubernetes, and Terraform.
Experience designing asynchronous processing infrastructure utilizing message queues (Kafka, PubSub, etc.).
・MLOps / AI
Experience designing and implementing MLOps environments (CI/CD for ML, Feature Stores, etc.).
Experience fine-tuning LLMs.
Experience leveraging managed AI services such as Vertex AI, Bedrock, and Azure OpenAI Service.
Experience driving projects with international teams (including technical discussions in English).
【Ideal Applicants】
Able to logically explain the rationale behind technology selection and architectural proposals.
Skilled at technically untangling highly abstract requirements and unorganized challenges.
Possess a strong learning orientation to autonomously stay updated on modern technologies.
Able to work while engaging in flat, open discussions with multi-national development teams.
Capable of developing with a keen awareness of structural design and operational adoption, moving beyond pure implementation level.
Empathy with the company's mission and core values.
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■ Holidays & Leave (122 Annual Days Off)
・Full Two-Day Weekend System (Saturdays and Sundays), National Holidays
・Summer Leave (3 days)
・Paid Leave: Granted 3 months after joining. The exact number of days varies depending on the month of hire, but 15 or more days are granted annually (including 5 days of planned paid leave).
・Other Leave Systems: Condolence leave, special leave, child nursing care leave, and menstrual leave.
■ Insurance & Benefits
・Social Insurance: Employees' Pension, Health Insurance, and Labor Insurance (Industrial Accident Compensation Insurance and Employment Insurance).
・Kanto IT Software Health Insurance Association (ITS): The company is a member of the ITS Health Insurance Association. Employees gain access to unique benefit payouts supplemental to statutory coverage, annual health checkups, and member-exclusive discounted rates for affiliated resorts, fitness centers, and sports facilities.
■ Benefits & Perks
The company implements the following initiatives to support skill enhancement and internal news sharing:
・Skill Sharing: An event calendar for study sessions and workshops is shared internally, allowing employees to participate freely.
・Certification Support Program: Upon passing an exam, the company covers the examination fees. This applies to designated eligible certifications.
・Globis Learning Initiative: Unlimited access to Globis e-learning courses to improve consulting skills.
・Book Purchase Subsidy
・Online Language Lesson Subsidy [English/Japanese]
・Employee Stock Ownership Plan (Includes a 15% matching incentive)
・Club Activities Support Program
・Happy Friday: Every Friday, leaving the office at 18:00 is encouraged. The company provides light snacks and drinks, hosting networking events centered around various topics.
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