Senior Information Security Analyst

Job DescriptionWe’re recruiting a Senior Information Security Analyst to support the Chief Information Security Officer in protecting and enhancing the organisation’s security posture across Technology Services.

This is a hands-on, operational role focused on monitoring, analysing and responding to security threats, while driving continuous improvement across our security operations capability. You’ll play a key role in incident response, threat intelligence, vulnerability management and ensuring effective use of our security tools and processes to reduce risk across the technology estate.

Key ResponsibilitiesMonitor, triage and respond to security alerts and events, ensuring effective prioritisation based on risk and impactAct as a first responder for security incidents, including participation in on-call supportAnalyse security data and alerts to identify trends, risks and potential threatsAct as an escalation point for information security queries from colleagues and service delivery teamsSupport and coordinate patch management activities, validating effectiveness through vulnerability scanningOversee and operate key security technologies, including SIEM, email and web gateways, and endpoint protection toolsMonitor external threat intelligence sources and assess relevance to the organisationProduce and report on security metrics, KPIs and operational performanceTechnical expertiseGood understanding of information security principles, risk management and the threat landscapeExperience of operating and monitoring security tooling, including SIEM, endpoint protection, and email/web security solutionsAbility to proactively conduct threat hunting activities and develop or enhance detection analytics to improve identification of malicious activityAwareness of cloud security controls and standardsExperience of managing enterprise systems, including Microsoft Active Directory, Windows and LinuxKnowledge of network security technologies, including proxies, end point security tools and data loss prevention controls are highly advantageousSkills And ExperienceExperience working within recognised information security frameworks (e.g. ISO27001, NIST)Proven experience in an information security role, preferably within financial services or e-commerceStrong analytical capability, with the ability to interpret data and support decision-makingAbility to take ownership of tasks and deliver through to completionConfident in providing challenge to improve security outcomesEffective communication skills, both written and verbalWell organised, with strong attention to detail and the ability to manage competing prioritiesDemonstrates a commitment to continuous professional development (e.g. CISSP or equivalent)About AJ BellAJ Bell is one of the UK’s 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, we’re helping more people take control of their financial futures.

We’re proud to be recognised as one of the UK’s Best 100 Companies to Work For, for six consecutive years, and a Great Place to Work® in 2025 and 2026 a reflection of our supportive and collaborative culture.

What We Offer26 days holiday, increasing with service + buy/sell scheme + bank holidays7% Pension with matched contributionsDiscretionary bonus schemeShare schemes (including free shares and BAYE)Health Cash Plan and discounted private healthcareFree onsite gymEnhanced family leave (subject to qualifying criteria)Travel and bike loan schemesEmployee Assistance ProgrammeLife at AJ BellRegular social events including summer and Christmas partiesLearning and development opportunities tailored to youCasual dress codeFriendly, supportive team environmentOur ways of workingWe offer hybrid working, with a minimum of 50% of your working time per month spent in the office. For new starters, there’s an initial period of full-time office working to help you settle in and build relationships.

Inclusion & diversityWe’re committed to creating an inclusive environment where everyone feels respected and able to be themselves at work. We welcome applications from all backgrounds and make hiring decisions based on skills, experience and potential.