09th June, 2025
Security Specialist
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 a new role within Brennan, and its primary purpose is to support the current CISO, Security Team, and IT Operations Team in ensuring that Brennan is able to deliver to internal and external stakeholders with a high level of operational efficiency and efficacy, with the required security posture.
This role requires a person who brings a security-centric mindset to the team, to ensure that Brennan’s governance, protection and defence, detection and response activities are being executed consistently and in alignment with obligations.
Role Responsibilities - Governance: Ensuring that scheduled and periodic security hygiene activities are completed on time and to expectations, aligned with ISO27001 and NIST CSF frameworks.
- Protection & Defence: Ensuring that the suite of security platforms used within Brennan are maintained to design, updated to meet requirements, and delivering on objectives.
- Detection & Response: Working with Brennan’s own SOC and other monitoring teams to ensure that detections are triaged and handled with the required level of rigour and responsiveness
- This role requires a strong understanding of a broad range of IT and Security technologies, with the ability to work across teams to achieve desired outcomes. The role includes an element of “hands-on” activities and is well supported by a range of IT and Security teams who also operate the IT and OT systems within Brennan.
- In order to deliver the right security outcomes for Brennan the role requires an eye for detail, and a desire for continual improvement. It requires excellent written and verbal communication skills in order to build relationships across Brennan, which will enable you to be a trusted source for security advice within the business.
Key Competencies and Qualifications required
- Maintenance and upkeep of key security technologies;
- Completion of scheduled and ad hoc security related tasks across the Brennan network;
- Reporting and assessment of security-related metrics and outcomes;
- Working with IT (including OT and Network Teams) on a day to day basis to ensure agreed and desired outcomes are met;
- Liaising with security and IT leadership to ensure that the security program is run to design and requirement;
- Maintaining a relationship with other internal teams to foster an open and transparent relationship;
- Responding to automatically detected and manually notified alerts, and working those incidents based on documented and understood incident response processes;
- Providing subject matter expertise to colleagues and projects outside of the immediate role;
- Participate in sharing knowledge with other Brennan team members including preparing and reviewing documentation for same.
Brennan is an equal opportunity employer.
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