Principal Information Security Engineer

Salary: £52,000 - 92,000 per year

Requirements:

• Demonstrable experience implementing enterprise security platforms
• Strong hands-on experience with the Microsoft security stack
• Strong hands-on experience using, managing and securing diverse end-user compute environments, including Windows, MacOS, Linux and mobile device platforms
• Knowledge or experience working with firewalls and cloud security solutions is highly advantageous
• Deep understanding of information security solutions such as email and web gateways, Privileged Account Management (PAM), Identity Governance and Administration (IGA), Security Information and Event Management (SIEM) and endpoint protection
• Strong understanding and knowledge of information security risk management tools and techniques
• Awareness of information security control standards and frameworks
• Experience working within recognised information security frameworks and best practices such as ISO27001 and NIST
• Five years of experience in an information security role gained in a financial services or e-commerce environment is preferred
• Significant experience in information technology security
• Strong knowledge of core IT and networking concepts
• Extensive experience implementing industry-standard IT security platforms
• Strong ownership of tasks and attention to detail
• Ability to challenge approach, strategy and implementation to ensure information security is consistently considered and improved
• Ability to work under own initiative and communicate effectively with colleagues and customers
• Structured, self-starting and flexible approach, with the ability to thrive in fast-paced environments
• Effective written and verbal communication skills
• Ability to plan, organise and follow through on assigned tasks with little or no prompting from management
• Excellent attention to detail
• Attained or working towards CISSP certification

Responsibilities:

• Act as our primary technical escalation point, providing hands-on guidance and decision-making for complex technical challenges
• Oversee the day-to-day execution of security engineering, ensuring BAU work is delivered to high standards and team SLAs are consistently met
• Ensure the quality and consistency of engineering outputs, including project engagements, technical tasks and documentation, align with established security standards
• Support the technical delivery of our security tooling roadmap, bridging the gap between strategic objectives and operational outcomes
• Work closely with our Information Security Architecture team to validate design concepts and ensure solutions are robust, scalable and fit for our enterprise environment
• Collaborate with our Information Security Operations team to drive operational efficiency, quality improvements and the seamless integration of security controls across the estate
• Provide technical leadership and mentoring to our engineering team so they have the support and direction needed to deliver secure, automated and effective solutions

Technologies:

• Cloud
• Support
• Linux
• macOS
• Mobile
• Security
• Web
• Windows

More:

At AJ Bell, we believe investing should feel good. We are one of the UKs fastest-growing investment platform businesses, trusted by over 723,000 customers to manage more than £108.7 billion of assets. We are proud to be recognised as one of the UKs Best 100 Companies to Work For for six consecutive years, and a Great Place to Work in 2025 and 2026. We offer a competitive starting salary, 26 days holiday increasing with service, a buy/sell scheme, bank holidays, 7% pension with matched contributions, discretionary bonus scheme, share schemes including free shares and BAYE, a Health Cash Plan and discounted private healthcare, a free gym, enhanced family leave, travel and bike loan schemes, an Employee Assistance Programme, regular social events, tailored learning and development, a casual dress code and a friendly, supportive team environment. We work in a hybrid model with a minimum of 50% of working time per month in the office, and new team members start with an initial full-time office period to build relationships and immerse themselves in our business. We are committed to inclusion and diversity, and we welcome applications from all backgrounds.

last updated 30 week of 2026