Salary: £65,000 - 75,000 per year Requirements: Good understanding of information security principles, risk management and the threat landscape Experience of operating and monitoring security tooling, including SIEM, endpoint protection, and email/web security solutions Ability to proactively conduct threat hunting activities and develop or enhance detection analytics to improve identification of malicious activity Experience of managing enterprise systems, including Microsoft Active Directory, Windows and Linux Knowledge of network security technologies, including proxies, endpoint security tools and data loss prevention controls are highly advantageous Experience working within recognised information security frameworks (e.g. ISO27001, NIST) Proven experience in an information security role, preferably within financial services or e-commerce Strong analytical capability, with the ability to interpret data and support decision-making Ability to take ownership of tasks and deliver through to completion Well organised, with strong attention to detail and the ability to manage competing priorities Demonstrates a commitment to continuous professional development (e.g. CISSP or equivalent) Responsibilities: Monitor, triage and respond to security alerts and events, ensuring effective prioritisation based on risk and impact Act as a first responder for security incidents, including participation in on-call support Analyse security data and alerts to identify trends, risks and potential threats Support and coordinate patch management activities, validating effectiveness through vulnerability scanning Oversee and operate key security technologies, including SIEM, email and web gateways, and endpoint protection tools Monitor external threat intelligence sources and assess relevance to the organisation Produce and report on security metrics, KPIs and operational performance Technologies: Active Directory Support Linux Network Security Web Windows More: AJ Bell is one of the UKs fastest-growing investment platform businesses, providing award-winning solutions for everyone, from professional financial advisers to first-time investors. Today, over 644,000 customers trust us to manage more than £103.3 billion of assets. By continually striving to make investing simpler and more accessible, were helping more people take control of their financial futures. Were 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, reflecting our supportive and collaborative culture. We offer a range of benefits including 26 days holiday, a 7% pension scheme with matched contributions, and enhanced family leave. last updated 17 week of 2026