Paul O'Toole.
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Independent Consultancy

Infrastructure you can understand, secure and rely on

Independent infrastructure, security and data consultancy for small and mid-sized organisations across Ireland and the UK

Technology should support your organisation, not become a source of uncertainty.

Many organisations rely on systems that have evolved over years of growth, staff changes and competing priorities. Documentation is incomplete, infrastructure is poorly understood and security risks are difficult to assess. Everything appears to work, until a failure, cyber incident or major change exposes hidden weaknesses.

I help organisations:

  • Understand what they have and how it works
  • Identify operational, technical and security risks
  • Implement practical improvements that reduce risk
  • Improve resilience, monitoring and recoverability
  • Create documentation that remains useful after the project ends

Infrastructure should never be a mystery.

Services

Infrastructure and security

Infrastructure and network engineering

Review, design and improvement of servers, networks and connectivity, including ageing environments and those that have grown without a clear plan.

Virtualisation and server platforms

Design, migration and management of VMware and Proxmox environments, from single hosts to clustered platforms, including platform reviews and resilience improvements.

Security and segmentation

Practical measures that reduce exposure and limit the impact of incidents, from network segmentation and firewall redesign to secure VPN, remote access and Active Directory access controls.

Monitoring, backup and recovery

Problems should be identified before users discover them. I implement monitoring, alerting and recovery arrangements that give visibility of system health and confidence that critical systems can be restored, because a backup is only valuable if recovery has been proven.

Systems and data

Microsoft 365 and identity

Administration, migration and optimisation of Microsoft 365, Exchange and Active Directory environments, including moves to the cloud.

CRM, databases and reporting

Dynamics 365 and SQL Server work, including CRM implementation, systems integration, data migration and Power BI reporting, so that you have one reliable view of your information.

Automation

Python, PowerShell and T-SQL automation that eliminates repetitive tasks, improves consistency and reduces operational overhead.

Advice and assurance

Infrastructure audits and documentation

Independent reviews that give a clear understanding of your current environment, highlight risks and identify improvements, with documentation designed to support ongoing operations and future change.

Technology strategy and vendor selection

Independent advice on technology roadmaps, platform choices and supplier relationships. My recommendations rest on your operational needs and long-term sustainability, not product sales targets.

Experience

I bring more than thirty years of experience across enterprise IT, pharmaceutical, charitable and public sector organisations.

I have served as IT Manager for a globally distributed organisation, with responsibility for infrastructure operations, network resilience and security incident escalation. Earlier roles included systems integration, CRM platforms, business intelligence delivery and large-scale data projects supporting operational and strategic decision-making.

I understand both the technical challenges of maintaining complex systems and the business consequences when those systems fail.

Selected outcomes

  • Migrated more than 120 virtual machines from desktop-hosted virtualisation to a managed VMware platform
  • Re-engineered a charity's monthly claims process to cut processing time by 95%
  • Developed the technology roadmap used to guide a major replacement of legacy systems

How I work

I provide independent advice, practical recommendations and hands-on delivery. My priorities are security, resilience and simplicity.

Every engagement ends with systems that are better understood, easier to manage and less dependent on any one person.

Credentials

  • Graduate Diploma in Information Technology (Distinction), Dublin City University
  • CompTIA Security+, Network+ and Linux+
  • CCNA (in progress)

Start with a clear picture

I take on:

  • Independent infrastructure reviews
  • Support with a specific technical challenge
  • Larger improvement programmes, including infrastructure, security, CRM and data projects

Engagements range from a few days of focused consultancy to several months. I work remotely across Ireland and the UK with on-site visits as required.

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