Consulting, contracting & software engineering from Tokyo
We help organizations build great software. From architecture consulting and technical strategy to full product development and dedicated engineering teams: small teams, deep expertise, and a bias toward shipping.
What We Do
Deep expertise across the stack, applied to your problem
We bring strong opinions about how software should be built, especially around identity, security, and infrastructure, but we adapt to your constraints and focus on your outcomes. Every engagement is scoped around results, not hours.
Identity, Security & Authorization
Identity platform architecture (CIAM, WIAM, machine identity), SSO, MFA, SCIM provisioning. OAuth 2.0, OpenID Connect, fine-grained RBAC/ABAC, policy-as-code with OPA and Cedar. Zero-trust API protection for multi-tenant platforms.
Cloud Infrastructure & Delivery
Cloud architecture on AWS, GCP, Azure, or multi-cloud. Kubernetes, Infrastructure-as-Code, traffic management, edge delivery, and global deployment, built for performance, security, and scale.
Product & Platform Engineering
Full product development from concept to production. Mobile apps, web applications, APIs, developer platforms, and high-throughput backends in Go, Rust, Python, and Node.js.
How We Think
Pragmatic engineering. Real results. Not just slide decks.
We take a small number of engagements, go deep, and focus on shipping software that works. Every engagement has direct founder involvement and a bias toward delivering over planning.
Delivering is everything
Software is nothing if it's not delivered to users. We take a pragmatic approach and keep the end result in mind. Architectural idealism takes a back seat to solutions that actually ship.
Consulting that builds
We don't hand over slide decks and walk away. We write code, ship systems, and take ownership of outcomes. Strategy without implementation is opinion; we deliver both.
Small by design
We stay small so we can choose work carefully, retain full independence, and go deeper than a larger firm could afford to. Every engagement sharpens the next one.
Ship, measure, iterate
No six-month roadmaps gathering dust. We deliver incrementally, validate with real users, and course-correct continuously. Rapid prototyping beats lengthy planning.
Technology
Deep expertise across the infrastructure stack
Identity & Auth
OAuth 2.0, OpenID Connect, SAML, SCIM, Auth0, Okta, Entra ID, Keycloak, CIAM, WIAM, machine identity, MFA, directory services
API Security
OPA, Cedar, RBAC/ABAC/ReBAC policy design, API gateway authorization, zero-trust architecture, WAF, DDoS protection, rate limiting
Cloud & Edge
AWS, GCP, Azure, Kubernetes, Istio, Terraform, Helm, ArgoCD, Cloudflare, CDN, edge computing, traffic management, load balancing
Backend & Systems
Go, Rust, Python, Node.js, Java, C#; REST, GraphQL, gRPC, event-driven architectures, high-throughput API design
Frontend & Mobile
React, Next.js, Vue, TypeScript, Swift, Kotlin, React Native, Flutter
DevOps & Observability
Prometheus, Grafana, Datadog, OpenTelemetry, Sentry, GitHub Actions, GitLab CI, SLO/SLI frameworks, incident management
Let's build something great together
Whether you need architecture consulting, a dedicated engineering team, or a full product build, we'd like to hear about your project.