_{22nd September, 2026}

Security Operations Analyst L1

Brennan. Where true performance thrives. 
At Brennan, we believe that how technology is delivered is every bit as important as what the technology is. We focus on creating real and relevant value for customers with solutions that fit their specific needs and always reflect their true interests. It’s a claim backed by our True Performance System – a way of working engineered to get us closer, and deliver better, for our customers and their actual experience of technology.
  
Why join Brennan 
True performance for our customers starts with a true belief in our people. 
It’s why we’ve structured our business to help our teams, and their talents, shine bright. It's why we’ve created a workplace where people of all backgrounds, beliefs and experiences are welcomed and empowered. And it’s why we’ve built an organisation where real innovation makes a genuine impact and generates true rewards for our team members. 
  
True rewards 
In addition to competitive remuneration, Brennan offers extensive benefits, including: 

• Training and certification bonuses 
• Culture Awards that recognise excellence 
• Brennan Daredevils – our annual, all-expenses paid trip awarded to our top performers and outstanding contributors 
• Vibrant, fun social activities.
• An environment that embraces learning and development 

The Role

This is an entry-level technical role designed to give you hands-on experience in Security Operations. You’ll work with senior analysts and engineers to deliver a range of network and cybersecurity services, while developing your skills across incident response, security tooling, and customer engagement.
Your focus will be on learning, supporting, and assisting in the delivery of day-to-day security operations while gaining exposure to best-in-class tools and frameworks.

Role Responsibilities

• Monitor, analyze, and triage security alerts across Endpoint Detection & Response (EDR/XDR), Email Security, Identity Management, and SIEM/SOAR platforms. 
• Investigate security events and support incident response activities by following established processes and playbooks. 
• Identify, assess, and document security incidents, ensuring accurate tracking and timely resolution. 
• Create and maintain incident reports, operational procedures, knowledge articles, and lessons learned documentation. 
• Assist in the deployment, configuration, and ongoing maintenance of security tools and controls. 
• Escalate complex security incidents and critical issues to senior analysts and relevant stakeholders as required. 
• Support continuous improvement initiatives to enhance security monitoring, detection, and response capabilities. 
• Ensure adherence to organizational security standards and industry frameworks, including NIST Cybersecurity Framework, ISO 27001, and Essential Eight. 
• Collaborate with internal teams to investigate threats, vulnerabilities, and security-related concerns. 
• Contribute to maintaining a strong security posture through proactive monitoring and operational support.   

Key Competencies and Qualifications required

• Endpoint Security Solutions: Familiarity with platforms such as SentinelOne, CrowdStrike, Microsoft Defender for Endpoint, Sophos, or Trend Micro Vision One.  
• Email Security Technologies: Exposure to solutions including Mimecast, Proofpoint, and Exchange Online Protection (EOP).  
• Identity & Access Management (IAM): Basic understanding of Microsoft Entra ID (Azure AD), Multi-Factor Authentication (MFA), Conditional Access Policies, and identity security concepts.  
• SIEM & SOAR Platforms: Knowledge of security monitoring and automation tools such as Microsoft Sentinel, USM Anywhere, Securonix or similar security operations platforms.  
• Incident Response & Threat Frameworks: Familiarity with cybersecurity frameworks and methodologies, including NIST Incident Response (NIST IR) and the MITRE ATT&CK framework.  
• Security Monitoring & Analysis: Understanding of security alerts, threat detection, event investigation, and incident triage processes.  
• Cybersecurity Best Practices: Awareness of industry standards and frameworks such as NIST, ISO 27001, and the Essential Eight. 

Brennan is an equal opportunity employer.

Apply For Job