Senior Information Security Engineer

Responsibilities

• Lead delivery and ongoing management of enterprise security solutions across Endpoint, Cloud, Network, Dev Ops and Security Monitoring
• Design and implement secure infrastructure controls aligned to industry best practice
• Identify, evaluate and implement new enterprise security tools and platforms
• Drive adoption of new technologies, ensuring effective operational handover and value realisation
• Lead and coordinate patch management activities across internal systems and hardware
• Recommend and guide server hardening improvements with Infrastructure and Service Delivery teams
• Support audits, regulatory reviews and due diligence activities
• Provide security oversight across projects and change initiatives to protect AJ Bell's security posture
• Act as the integration point between the CISO function and Infrastructure teams

• Proven experience implementing enterprise security platforms
• Strong understanding of security risk management tools and techniques
• Deep knowledge of security solutions including SIEM, PAM, IGA, email/web gateways and endpoint protection
• Experience with firewall technologies (highly desirable)
• Knowledge of cloud security standards and solutions (highly desirable)
• Strong understanding of core IT and networking principles
• Awareness of current threat landscape and evolving attack vectors
• Experience working within recognised frameworks such as ISO
  27001, NIST or similar
• Significant experience within IT security
• Financial services or e‑commerce sector experience preferred
• CISSP (attained or working towards) desirable

AJ Bell is one of the UK's fastest‑growing investment platform businesses, supporting over 644,000 customers and managing more than £103.3 billion in assets. Listed on the FTSE 250, we've been named one of the UK's Best 100 Companies to Work For for six consecutive years and a Great Place to Work® in 2025.

We offer a competitive package including