Engineering clarity
in complex systems.
Hatstack is a boutique technology consultancy and product studio. We specialize in Cloud Architecture, SecOps, and Governance-First engineering.
Consulting & Advisory
Cloud Architecture
Designing resilient, event-driven, and scalable systems. Moving beyond theoretical diagrams to deployable, production-ready infrastructure that respects domain boundaries.
SecOps & Compliance
Embedding security and compliance into the delivery pipeline. Zero-trust networking, right-to-erasure mechanics, and audit-ready data custody.
Governance Implementation
Fixing organizational noise. Helping teams implement Governance-First practices to eliminate ambiguity, define explicit RACI, and accelerate delivery safely.
Flagship Product
Governance OS
We don't just consult on theory; we build the tools to enforce it. Governance OS is an enterprise platform designed to turn strategic ambiguity into signed, versioned, and AI-audited contracts.
- ✔ Cryptographic Contract Locking
- ✔ AI Delta Engines & Risk Auditing
- ✔ Automated Jira/ADO Backlog Generation
Built on reality.
Hatstack was founded by Mikkel Sejersen-Zwinge to bridge the gap between high-level strategy and low-level execution.
After presenting the concept of "Governance-First Architecture" at a Nordic CISO conference, it became clear that the industry didn't need another agile framework. It needed a way to mathematically eliminate ambiguity before code is written.
Whether acting as a Fractional Architect, auditing a cloud infrastructure, or deploying Governance OS into an enterprise, the philosophy remains the same: Clarity is not an accident. It is engineered.