15h Left: Senior IT Security Analyst

4 weeks ago

Cork, Ireland September Consulting Ltd Full time

Overview

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.

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