Senior IT Security Analyst – Cork, Ireland
Location:
Cork, Co. Cork, Ireland
Employment Type:
Full-time
About the Role:
We're seeking a
Senior IT Security Analyst
with a strong background in
Microsoft and Linux engineering
to join a leading global financial services organization. This is an exciting opportunity to play a key role within the
IT Security department
, helping design, build, and maintain a secure, enterprise-class hybrid-cloud infrastructure. You'll also contribute to the organization's
Cyber Security Incident Response Team (CSIRT)
and support investigations when required.
Key Responsibilities:
* Install, configure, and troubleshoot
Active Directory
and
DNS
, including managing
Group Policy
and
Active Directory Security
solutions.
* Implement and maintain
Active Directory design
, schema, OU structures, replication topologies, and DC backup/restore processes.
* Support
Security Architects
in the design, deployment, and maintenance of
secure cloud solutions
aligned with best practices.
* Build and configure
cloud-based infrastructure
with a focus on
identity and access management
and secure configuration.
* Develop and apply
security controls
across multiple cloud providers.
* Automate and script security processes to accelerate configuration audits, risk assessments, and remediation activities.
* Keep cloud infrastructure up to date and proactively recommend improvements to enhance security posture.
* Investigate and resolve security incidents, document findings, and implement preventive measures.
* Collaborate across internal teams to strengthen
cyber resilience
and security awareness.
* Maintain
documentation and diagrams
for systems, tools, and operational processes.
* Follow enterprise
change management
procedures and ticketing processes.
* Perform other related duties as required.
About You:
* 3+ years'
experience in enterprise-scale
cloud security environments
.
* 5+ years'
experience with both
Linux and Windows
environments.
* Solid understanding of
operating system security
and hardening practices.
* Proficiency in
scripting and automation
(Bash, Python, PowerShell) and familiarity with
Infrastructure as Code (IaC)
.
* Strong communication skills—both written (documentation, procedures) and verbal (team collaboration).
* Excellent
problem-solving
and
critical-thinking
abilities.
* Comfortable managing multiple complex projects in a fast-paced environment.
* Familiarity with
DevOps tools and methodologies
(Docker, Ansible, Terraform).
* Relevant certifications such as
RHCSA, AWS Solutions Architect, Azure Security, or MCSE
are highly desirable.
Why Apply?
You'll join a collaborative, forward-thinking technology team that values innovation, security excellence, and professional growth. This role offers the chance to work on enterprise-scale projects within a secure hybrid-cloud environment—while contributing directly to the organization's global security initiatives.