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Solutions

IT Consulting & Custom Development

From architecture design and development to legacy modernization and enablement.
A company that runs its own SaaS, staying with you through implementation.

We Run Our Own SaaS

The AI Calls phone assistant, an EC site, and conversion tools run in production on our own infrastructure.

AI-Native Development

Built around Claude Code: small teams, short timelines, high quality.

Multi-Cloud

Design, build, and cost optimization on AWS, Google Cloud, and Cloudflare.

Bilingual JA / EN

Requirements, development, and documentation in both Japanese and English.

What We Deliver

Not advice-only consulting. Four areas where we take responsibility through implementation and operations.

Architecture & Technology Selection

System design and stack selection matched to your business requirements and growth plans. Decisions based on measured operating cost, hiring feasibility, and scalability rather than trends. PoC and ROI evaluation support the decision.

Key deliverables

  • System architecture document
  • Technology selection report with comparisons
  • PoC implementation and evaluation
  • Security and compliance design

Web App & SaaS Development

From large web applications to SaaS and internal business systems, built with our AI-native process around Claude Code. You see working software early, released in stages.

Key deliverables

  • Working system with full source code
  • CI/CD pipeline and automated tests
  • Operations manual and API specifications
  • Staged release planning and execution

Legacy Modernization & Cloud Migration

Modernizing aging systems and migrating away from on-premise and legacy payment stacks. We design staged migration plans that keep the business running, and stay through implementation.

Key deliverables

  • Current-state analysis report
  • Migration roadmap
  • Low-downtime cutover design
  • Cost optimization proposals

DevOps & Operations

Automation pipelines with GitHub Actions, Infrastructure as Code, and monitoring. Development efficiency and code quality guaranteed by systems, not by individual heroics.

Key deliverables

  • CI/CD pipeline construction
  • Infrastructure as Code
  • Monitoring and alerting setup
  • Security assessment and hardening

Proof

Proven in Our Own Production

Our proposals are backed by products we operate ourselves and the technical insights we publish.

Published Insight

Stripe Migration, in Practice

How to replace a legacy payment stack with Stripe: data migration, subscription transfer, and a zero-downtime cutover strategy.

Read the article

Published Insight

AI-Native Development, for Real

What in-house development with Claude Code actually looks like, from team setup to quality assurance.

Read the article

How We Work

  1. Discovery (Free)

    We learn your operations, existing systems, and challenges, and separate honestly what deserves building from what does not.

    Typically 1 to 2 meetings

  2. Requirements & Design

    Requirements definition, architecture design, and technology selection. The full quote and schedule are fixed at this stage.

    Typically 2 to 4 weeks / Deliverables: requirements, design docs, quote

  3. Development & Staged Release

    You see working software early, and we release in stages. CI/CD and automated tests keep quality guaranteed by process.

    Quoted per scope / Deliverables: system, tests, CI/CD

  4. Operations & Enablement

    We hand over with operations documentation in place. Ongoing maintenance, feature work, and in-house team enablement as needed.

    Maintenance contract or ongoing support

Pricing is quoted per project, based on duration, screens and workflows, integrations, authentication, and maintenance scope. Standalone PoC engagements are welcome.

Core Technology Stack

Frontend
ReactNext.jsAstro
Backend
Node.jsTypeScriptPython
Cloud
AWSGoogle CloudCloudflare
Data
PostgreSQLD1Vector DB
Tooling
Claude CodeGitHub ActionsIaC

Frequently Asked Questions

How much does an engagement cost?

Every project is quoted individually. Cost depends on duration, the number of screens and workflows, external API integrations, authentication requirements, hosting environment, and maintenance scope. Even if your requirements are not yet fixed, a free consultation can give you a realistic view of the numbers.

How long does development take?

Our AI-native development process built around Claude Code lets a small team ship in a short timeframe. A small web application typically takes a few weeks; business systems take a few months depending on scale. We give you a schedule estimate in the first consultation.

Can we talk before our requirements are fixed?

Yes. Working out what should be built is part of the job. We look at your current operations and separate what deserves custom development, what an off-the-shelf SaaS can cover, and what does not need building at all, then work through requirements definition together.

Can you integrate with our existing systems?

Yes. We have integrated with existing business systems, accounting SaaS such as freee, payment platforms such as Stripe, and a range of external APIs. Staged migration plans away from legacy systems are part of our proposals.

What happens after delivery?

We deliver with operations documentation and CI/CD in place, so your team can take over. Ongoing maintenance contracts, feature development, and in-house team enablement are all available as needed.

Can we start small?

Yes. Standalone PoC and prototype engagements are welcome. Our standard approach is to put something working in front of you early, so you have real evidence before committing to full development.

Let's Solve the Hard Problems Together

In a free consultation we review your operations and system landscape, then tell you honestly what deserves building and what does not.