Strategy with technical depth
Comfortable moving from operating-model and capability questions into information architecture, system integration, standards and implementation risk.
Principal consultant
Dr Tito Castillo
A career spanning scientific computing, clinical research, health informatics, secure research infrastructure, interoperability, enterprise architecture and national-scale transformation.
Clinical and research context
Experience spans NHS care delivery, clinical research, national research infrastructure, secure environments and regulated medical software.
Data as infrastructure
Metadata, semantic interoperability, conceptual modelling and data governance have been recurring themes throughout the career.
Assurance through delivery
Work has included architecture working groups, ISO 27001 environments, national health programmes, shared records and provider transformation.
Selected experience
Experience across national programmes, provider transformation, research and regulated technology.
Open any item for a short description. The intention is to show the breadth of environments informing the practice, rather than reproduce a full CV.
Current engagement supporting enterprise data architecture, data standards, metadata management and semantic interoperability across the Health Service Executive in Ireland.
Current engagement supporting EPR technical readiness through architecture analysis, clinical pathway assessment, dependency analysis, implementation risk and transformation planning.
Led architecture assurance for a large-scale secure healthcare transformation, established and chaired the architecture working group, developed business capability and conceptual information models, and contributed to target operating model development.
Directed architecture for a multi-organisation integrated care record, including semantic mapping across Epic, SystmOne, EMIS and local authority systems.
Designed and operationalised an early ISO 27001-certified secure research computing environment for sensitive epidemiological data.
Held senior informatics leadership roles including IT Director for the NIHR BioResource and CIO for Life Study at UCL Institute of Child Health.
Created a standards-compliant MAGE-ML data pipeline enabling validated experiment submission to EBI ArrayExpress.
Developed and commercialised software to analyse small bowel motility using electrical impedance data, taking research into a regulated clinical product.
Lead front-end developer for PARR++ (Patients At Risk of Rehospitalisation), developed with the King's Fund and distributed nationally.
Professional assurance
Experience reinforced by recognised professional disciplines.
Enterprise architecture
TOGAF 9.2Open Agile ArchitectureArchiMate 3
Formal architecture disciplines support capability modelling, operating models, solution assurance and structured transformation planning.
Data and healthcare leadership
FBCSCITP
Professional standing spans data management, health informatics leadership and chartered IT practice.
Security and programme delivery
ISO 27001 Lead ImplementerPRINCE2 Practitioner
Security and programme credentials complement practical experience in sensitive health, research and public-sector environments.
Why Agile Health Informatics
A small practice designed for problems that do not fit neatly into one discipline.
The value proposition is not scale. It is the ability to connect business architecture, data, standards, clinical context, governance and technology in a single line of reasoning, while remaining independent enough to challenge weak assumptions.
Typical contexts
National strategy
Provider transformation
Interoperability
Data standards
Secure research
AI assurance
Start a conversation
Discuss a problem where architecture, data and delivery need to be considered together.
For new enquiries, please contact Dr Tito Castillo through LinkedIn.