Concept Informatiebeleid & Automatisering (in short Concept) is the company under which I, Jeroen Wiersma, offer my services as an independent freelance ICT Infrastructure Architect.
With more than 25 years of experience I support enterprise and (semi) government organizations in designing, analyzing and improving complex hybrid cloud environments with a focus on security, availability and cost efficiency — always with security-by-design as a starting point.
I combine strategic and tactical insight with technical depth in infrastructure design, transitions and migrations. In addition, I support organizations in the drafting, assessing and responding to RFPs to select or offer the right partners and solutions.
🧭 What sets me apart
In a world full of specialists, I bring it all together by combining years of hands-on experience with deep technical knowledge, tactical and strategic insight and a focus on cybersecurity.
I don’t just design future-proof infrastructures — I make sure they contribute to a safe, robust and resilient organization in practice. My architectures help:
🔹 prevent cyber attacks through smart network segmentation, access control and controlled cloud integration
🔹 limit damage in case of incidents through well-thought-out DR and backup strategies
From cloud migrations to outsourcing, from RFP structuring to disaster recovery: I deliver clear architectures, realistic transition plans and technical guidance through to implementation.
🔹 I can see the entire playing field without losing details and clearly map out the dependencies
🔹 I connect business, technology and suppliers
🔹 I monitor the feasibility, manageability and security aspects, not only the design
🔹 I deliver what works — substantiated, scalable and resilient to cyber threats
No castles in the air. No over-engineering.
Clarity, feasibility and results.
Typical roles
- Solution design for infrastructure and cloud environments
- Complete transitions and transformations (outsourcing, cloud migrations, contract extensions)
- Critical Infrastructure Assessments
- RFP support
- Solution Architect for IT infrastructures, cloud and cybersecurity
- Technical leader in transitions and data center consolidations
- Trusted advisor for CIOs and IT management
- Consultant in RFP processes, cloud migrations, transitions and transformations
Typical customer questions where I add value
- Will a cloud migration help me reduce costs?
- Which parts of our IT environment are suitable for migration — and which require redesign to ensure availability and security?
- How can our infrastructure design contribute to better prevention of and recovery from cyber attacks?
- Does our infrastructure still meet the actual business criticality and security needs of our applications?
- Is the security of our public cloud environment as robust as that of our private or on-premises environment?
- Do our high availability and disaster recovery solutions work as intended, even in scenarios with a cyber incident?
- Is our supplier's transition plan realistic, technically substantiated and aligned with security and continuity?
- Are our SLAs aligned with what our business actually needs in terms of availability, recovery and security?
- How do we maintain control over our IT when outsourcing or multisourcing — technically, organizationally and in terms of security governance?
- Are our RFI or RFP requests strong enough in terms of content to attract the right partners and solutions?
- What are the technical and strategic risks in our planned IT transformation, including cyber resilience?
📬 Curious about what I can do for your organization?
Feel free to contact me.