Senior Security Specialist - Threat Detection/Hunting in Cardiff

Are you passionate about cyber security and protecting essential public services from evolving threats?

Digital Health and Care Wales (DHCW) is seeking a Senior Security Specialist – Threat Hunting to join our Cyber Security Operations Centre (CSOC).

This is an exciting opportunity to play a leading role in identifying cyber threats, strengthening security monitoring and improving the resilience of systems that support NHS Wales.

Working as a senior technical specialist, you will lead proactive threat hunting activities, investigate complex security events and enhance detection capabilities across a diverse technology landscape.

You will collaborate with colleagues across DHCW, providing expert advice, driving continuous improvement and helping to protect critical national infrastructure and sensitive information.

We welcome applications from people with a variety of backgrounds and experiences who share our commitment to innovation, collaboration and making a difference through cyber security.

Main duties of the job As a Senior Security Specialist – Threat Hunting, you will proactively search for indicators of compromise, analyse security events and investigate complex cyber threats across DHCW and NHS Wales services.

Using intelligence-led approaches, you will identify emerging risks and recommend actions to strengthen organisational security.

You will develop and improve security monitoring capabilities by refining SIEM analytics, detection rules, dashboards and investigation processes.

Working closely with technical teams, you will help improve visibility across cloud, identity, endpoint, network and application environments.

The role also includes analysing trends, conducting horizon scanning, supporting incident response activities and contributing to cyber security projects and service improvements.

As a senior member of the team, you will provide technical guidance, share knowledge with colleagues and support the ongoing development of the Cyber Security Operations Centre.

The ability to speak Welsh is desirable for this post; Welsh and/or English speakers are equally welcome to apply.

• Detailed job description and main responsibilities
• Lead proactive threat hunting activities to identify suspicious or malicious activity.
• Act as a senior escalation point for complex cyber security investigations and incidents.
• Develop and optimise SIEM detections, analytics, dashboards and monitoring use cases.
• Analyse security telemetry from multiple sources to identify risks and improve resilience.
• Conduct threat-informed analysis and horizon scanning to understand emerging threats.
• Identify monitoring gaps and work with stakeholders to enhance security visibility.
• Produce clear technical reports, recommendations and investigation findings.
• Develop and maintain operational procedures, playbooks and technical documentation.
• Coach and support colleagues, sharing specialist knowledge and best practice.
• Build effective relationships with internal teams, suppliers and external partners.
• Present technical information to a range of audiences, including senior stakeholders.
• Participate in the cyber on-call rota and contribute to continuous service improvement.

Working for our organisation Digital Health and Care Wales (DHCW) is part of the NHS Wales family and has an important role in changing the way health and care services are delivered through technology and data.

The organisation supports frontline staff with modern systems and access to important information about their patients, while empowering the people of Wales to manage their own health through digital NHS Wales services.

Working for DHCW offers lots of employee benefits, including flexible working, a competitive salary, 28 days of annual leave plus Bank Holidays and opportunities for career development.

We are committed to recognising and celebrating our staff as the most valuable part of our organisation.

Join our game changing, life-saving team and start making a real difference to health and care services in Wales