07/02/2026 updated

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Senior IT / Enterprise & Infrastructure Architect | Azure/AWS | Security & Governance (Contractor)

Sneek, Netherlands
Denmark +1
info: Denmark, Netherlands
HBO Bachelor Informatics (in progress); MTS Mechanical Engineering, Alkwaard (1995)
Sneek, Netherlands
Denmark +1
info: Denmark, Netherlands
HBO Bachelor Informatics (in progress); MTS Mechanical Engineering, Alkwaard (1995)

Profile attachments

Hans_Onderdijk_CV_May 2026.pdf

About me

Senior Cloud & Infrastructure Architect with 25+ yrs in enterprise & healthcare. Secure foundations (landing zones, datacenter infrastructure, networking), security/governance and outsourcing steering. Available July 2026; planning to relocate to Denmark (Midtjylland/Aarhus region).

Amazon Elastic Compute CloudMicrosoft AzureCloud ComputingCloud Computing SecurityDisaster RecoveryHigh-Level ArchitectureIT ManagementInfrastructure ManagementNetwork SecurityNetwork ArchitectureSystems ArchitectureVMware Certified Professional (VCP)VMware InfrastructureVirtualizationIT ArchitectureCloud TechnologiesCloud MigrationCiscoVMware
Cloud Architecture & Migrations (Azure, AWS)
Extensive expertise in cloud architecture and migrations covering Azure and AWS, including assessments, target architecture definition, roadmap planning, cost analysis, and governance of cloud transformation programs.

Infrastructure Architecture
Broad experience in infrastructure architecture covering compute, storage, networking, datacenter migration and modernization, as well as disaster recovery and business continuity capabilities.

Security Architecture & Governance
Deep knowledge in security-by-design and platform security, including non-functional requirements, design reviews, controlled exceptions, security policy, and compliance with standards such as ISO/IEC 27001 and NEN 7510.

Architecture Governance
Experience in architecture governance, including architecture principles, technical policies, guidelines, and CAB/change governance processes.

Sourcing & Vendor Governance
Solid background in technical direction and coordination of managed service and outsourcing partners, including vendor steering and governance frameworks.

VMware Virtualization
Hands-on and architectural experience with VMware platforms including ESXi en vCenter, supported by multiple VMware Certified Professional certifications.

Networking (Cisco)
Strong networking skills with Cisco technologies including Catalyst, Meraki, CCNA and CCDA certifications, WAN optimization, and network security.

Storage & Disaster Recovery
Practical experience with SAN/FC, NAS, storage platforms (NetApp, EMC VNX), disaster recovery design and implementation, and backup/recovery redesign.

Scripting
Hands-on experience with PowerShell and Python scripting

Experience

Professional experience10+ years
Freelancer since2005

Languages

EnglishGoodDutchNative speaker

Project history

System / Enterprise Architect

Zorggroep Alliade
Responsible for Azure cloud readiness and architecture governance in a regulated healthcare environment. Mapped current-state architecture, defined target architecture based on Microsoft Azure, advised on migration scenarios, improved security governance processes aligned to ISO/IEC 27001 and NEN 7510, led decommissioning of two datacenters, and supported internal and external NEN 7510 audits.

IT Infrastructure Architect

Royal FloraHolland
During a 3.5-year transformation, governed infrastructure and security services and steered outsourcing partners. Advised on target architecture and technology roadmap, reviewed and approved technical designs, delivered AWS cloud platform design and build, Akamai Anti-DDoS/WAF, endpoint security rollout, and strengthened operational processes including patch and vulnerability management.

IT Lead Technical Architect

Exact / Global Services
Responsible for end-to-end modernization of Exact technical infrastructure. Advised management on target architecture and roadmap, produced technical designs, steered third parties, and led programs including datacenter modernization, VMware platform consolidation, primary datacenter relocation, SAN implementation, and migration of US services to cloud providers.

IT Infrastructure Architect / Senior Engineer

Exact / Cloud Solutions (Exact Online)
Part of the infrastructure architecture and senior engineering team responsible for the Exact Online platform. Delivered initiatives including storage migration/optimization, disaster recovery, data center deployment, Splunk setup for data analytics, and ISAE 3402 control framework. Hands-on with PowerShell scripting and Microsoft server products.

IT Project Lead / Senior Engineer

Municipality of Leidschendam-Voorburg
Responsible for reorganization and migration of municipal data in a regulated public-sector environment. Led migration of HP EVA storage to EMC VNX, reorganized municipal data after merger of two municipalities, and supported migration of end-user workplaces and application servers to a central VDI platform.

IT Infrastructure Architect / Senior Engineer

Manpower Inc.
Responsible for modernization of Manpower Netherlands technical infrastructure and implementation of a disaster recovery environment. Led sub-projects including server consolidation, new storage platform, DR solution, backup and recovery redesign, and a new Active Directory design. Hands-on with NetApp ONTAP and Cisco technologies.

Information Technology Engineer

Technical University Delft
Design and delivery of IT services for 15,000+ workstations using Windows, Active Directory, and Altiris Deployment Solution.

Information Technology Engineer

NCCW
Altiris Deployment Solution for automated HP blade deployments using Red Hat Linux, Windows, and VMware ESX.

IT Project Lead / Trainer

CRH / Cementbouw
Datacenter modernization and central IT services; MCSE training delivery.

Various IT roles

Various (ECT, KLM Cargo, ABN AMRO)
Various IT roles including international assignments in Canada, Italy, Finland, South Africa, Jordan, Saudi Arabia, Syria and Oman.

IT Consultant

Ministry of the Interior and Kingdom Relations (NL)
Improvement plan for centralized IT services and operations.

Certificates

Cisco Certified Network Associate (CCNA)

Cisco

2025

AWS Certified Solutions Architect Associate

Amazon

2018

VMware Certified Professional vSphere 5.5 (VCP5)

VMware

2015

Cisco Certified Network Associate DC (CCNA)

Cisco

2013

Cisco Certified Design Associate (CCDA)

Cisco

2012


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