Senior Information Security Engineer

Salary: £50,000 - 90,000 per year

Requirements:

• Proven experience implementing enterprise security platforms
• Strong knowledge of security risk management tools and techniques
• Deep understanding of security solutions such as SIEM, PAM, IGA, endpoint protection, and email/web gateways
• Experience with firewall technologies is desirable
• Knowledge of cloud security standards and solutions is desirable
• Strong understanding of core IT and networking principles
• Awareness of the evolving threat landscape
• Experience working within frameworks such as ISO27001, NIST or similar
• Significant experience in IT security
• Financial services or e-commerce experience is preferred
• Strong problem-solving skills and attention to detail
• Ability to take ownership and deliver end-to-end solutions
• Effective communication skills, with the ability to work across technical and non-technical teams
• CISSP achieved or in progress is desirable

Responsibilities:

• Lead the design, delivery and ongoing improvement of enterprise security solutions across endpoint, cloud, network, DevOps and security monitoring environments
• Design and implement secure infrastructure controls aligned to industry best practice, ensuring scalability, resilience and operational effectiveness
• Evaluate, select and implement new security tools and platforms, driving automation, integration and measurable value across the estate
• Lead the adoption of new security technologies, ensuring smooth transition into operational support and long-term sustainability
• Oversee patch management across systems and hardware, ensuring effective coordination and risk reduction
• Support server hardening and secure configuration initiatives in collaboration with Infrastructure and Service Delivery teams
• Provide security oversight across projects and change initiatives, ensuring security is embedded from design through to delivery
• Support audits, regulatory reviews and due diligence activities, ensuring evidence and controls are robust and well maintained
• Act as a key technical link between the CISO function and Infrastructure teams, ensuring alignment across security and operational delivery
• Contribute to continuous improvement of cybersecurity risk management processes, helping to enhance maturity across the organisation

Technologies:

• Cloud
• DevOps
• Embedded
• Firewall
• Hardware
• Support
• Network
• Security
• Web

More:

We are AJ Bell, one of the UKs fastest-growing investment platform businesses, trusted by over 762,000 customers and managing more than 121.5 billion of assets. We believe investing should feel good and we provide easy-to-use solutions for everyone from first-time investors to professional financial advisers. We offer a competitive benefits package including 26 days holiday, a 7% pension with matched contributions, discretionary bonus scheme, share schemes, health cash plan, discounted private healthcare, free gym, enhanced family leave, travel and bike loan schemes, an Employee Assistance Programme, regular social events, learning and development opportunities, 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 spend an initial period full-time in the office to build relationships and immerse themselves in our business. We are committed to inclusion and diversity and welcome applications from all backgrounds.

last updated 36 week of 2026