Amatsukaze
Services
From designing AI agents to modernizing legacy systems and building resilient high-load infrastructure — we bring hands-on engineering across domains to help your business run on its own.
01
AI Agents & DX Consulting
- Business automation with agentic AI — Beyond point solutions with generative AI, we design agentic workflows where multiple AI agents collaborate to carry out tasks — autonomously handling inquiries, internal operations, and reporting.
- Accelerating in-house development with AI coding agents — We embed agents such as Claude Code into your development flow to lift productivity across design, implementation, review, and testing, and support the shift to an AI-native process.
- Optimizing engineer evaluation and hiring — We establish coding tests and technical interviews that reflect the skills required in the age of AI, improving evaluation and hiring rates.
02
Legacy System Modernization & Migration
- AI-powered analysis and documentation of legacy code — Where documentation is lost, we use LLMs to extract and visualize specifications, dependencies, and business logic from the codebase, accelerating understanding and risk assessment of poorly understood or undocumented systems.
- AI-assisted migration and refactoring — We safely migrate from outdated frameworks and languages to modern stacks, with incremental refactoring backed by automated test generation.
- Modernization strategy — We weigh rewrite, replatform, and refactor approaches by cost-effectiveness and define a migration roadmap that keeps your business running.
03
High-load & High-transaction System Design
- Performance optimization for large-scale systems — We design systems that handle large-scale traffic and data processing, maximizing performance.
- Stable transaction processing — We engineer systems that guarantee transactional stability and reliability under high-concurrency load.
04
Authentication & Authorization Platform Design
- Authorization platforms with OpenID Connect / OAuth 2.0 — We design and implement standards-compliant authorization servers (OpenID Providers) and single sign-on (SSO) platforms, enabling secure authorization between services and microservices along with full token lifecycle management.
- Meeting high-security requirements such as FAPI — We design identity platforms that comply with advanced security profiles including financial-grade FAPI 2.0. Drawing on the expertise behind our own open-source OpenID Provider implementation, we deliver robust, standards-compliant authentication and authorization.
05
Cloud Implementation Support & Migration
- Multi-cloud and cloud-native adoption — Centered on AWS, we design, implement, and operate multi-cloud environments including Azure and Google Cloud, working alongside you with cost optimization (FinOps), security hardening, and platform engineering in mind.
- Migrating existing systems to the cloud — We provide planning, execution, and operational support for migrating on-premises systems to the cloud.
06
Observability & System Monitoring Design
- Monitoring design and operational support — We design and operate comprehensive monitoring and observability infrastructure for stable operations, including real-time monitoring, alerting, and performance analysis.
- LLM observability and automated fault response — We trace the behavior, cost, and quality of AI agents and LLM applications, and enable rapid automated fault response to minimize downtime.
07
AI Agent & LLM Utilization Support
- DX support using agentic AI and MCP — We leverage the latest generative and reasoning models to automate and elevate business processes, standardizing internal tool and data integration via MCP (Model Context Protocol) and building multi-agent orchestration platforms.
- Autonomous RAG and agent systems — Using GraphRAG and agentic RAG, we build autonomous agent systems that reason and act in real time.
- AI governance and evaluation (Evals) — Through guardrails, evaluations, and audit logs, we enable safe, explainable AI, with governance aligned to regulatory trends like the EU AI Act.
08
Local LLM & On-premise AI Deployment
- Local LLM environments with open-weight models — Using the latest open-weight models such as Qwen3-Coder, gpt-oss, and the DeepSeek family, we build local and on-premise LLM environments that keep data in-house, balancing confidentiality and cost efficiency.
- Task-specific AI with SLMs — Through fine-tuning task-focused small language models and RAG integration, we deliver lightweight, low-cost, and highly accurate task-specific AI.
Let's find the right first move for your challenge.
Not sure which service fits your needs? That's fine. Starting from your current challenges, we'll map out a roadmap for AI adoption and in-house capability together.