About 3LAYRS
Senior technology leadership, grounded in architecture and focused on outcomes.
3LAYRS is the independent consultancy of David Johnson, a senior IT architect and fractional CTO based in Belgium with extensive experience in enterprise and solution architecture, technology strategy, and delivery leadership.
Over the course of his career, David has worked across a range of industries and organisational sizes — from scale-ups finding their architectural footing to large enterprises navigating complex transformations. His work consistently sits at the intersection of business strategy and technology execution.
He specialises in helping organisations make better technology decisions: aligning architecture with business goals, building governance that enables rather than blocks, and providing the kind of senior, independent perspective that internal teams often lack.
David's approach is pragmatic and outcomes-oriented. He believes that architecture should serve the business, that strategy should survive contact with reality, and that the best technology leaders are those who can communicate clearly with both boardrooms and engineering teams.
When not working with clients, David writes about architecture, technology strategy, and the evolving role of senior technology leadership in modern organisations.
How I work
Clarity over complexity
Technology should simplify, not complicate. Every recommendation is designed to reduce ambiguity and make decisions easier.
Architecture as enabler
Architecture exists to help teams deliver better, faster, and with more confidence — not to create bottlenecks or bureaucracy.
Independent advice
No vendor affiliations, no hidden agenda. Recommendations are based on your context, your constraints, and your goals.
Pragmatism over perfection
The best architecture is one that works in practice. Theory matters, but delivery matters more.
Ready to bring clarity to your technology landscape?
Whether you need architectural guidance, a technology strategy, or senior leadership support — let's start with a conversation.
Get in Touch