Engineering engagements & architecture reviews
Build working systems.
Make better decisions.
From cloud foundations and corporate domain migrations to internal products and AI-enabled learning, BULL helps small teams move decisions forward with working software—not slide decks.
What we do
All services →Corporate Domain & Identity Migration
For early-stage startups whose domain isn't set up properly yet — DNS, email, SSO, and SaaS setup and cutovers with runbooks and rollback plans.
AWS Account Foundations
AWS Organizations, Control Tower, guardrails, centralized logging, and security baselines that make a safe launch the default.
IaC, Observability & Non-Functional Design
Terraform / AWS CDK, CI/CD, monitoring, SLOs, cost, and operability — implemented and improved, not just diagrammed.
Architecture Review & Advisory
A focused entry engagement for an independent perspective on cloud, identity, access, auditability, and integration risks before a larger build.
Proof of work
See all work →TenkaCloud
Multi-tenant SaaS platform for cloud competitions and learning events. Role-based access, SSO, auditability, and operational tooling.
JPKI Web3 Infrastructure
Infrastructure design and audit readiness for a wallet platform built on Japan's public-key infrastructure.
Cloud & Identity Migration
Domain, DNS, identity, and deployment cutovers designed with rollback and operational continuity in mind.
Our next pillar
TenkaCloud
An open-source product for running cloud challenges, GameDays, and technical learning events. It is also evidence of how we design multi-tenant operations, identity, access, and auditability.
Explore TenkaCloud- • Multi-tenant control plane and application plane
- • Role-based access and SSO
- • Auditability and administrative controls
- • Automated deploys into competitor AWS accounts
Learning & enablement
AI-enabled product development bootcamp
A hands-on program where teams ship a working prototype with generative AI, learning how to turn a business problem into running software rather than a deck.
Work with BULL
Cloud foundations, corporate domain and identity migrations, IaC and observability, plus architecture reviews and selected delivery engagements. Tell us what you are building.
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