Original listing text, shown exactly as published by the company.
What you’ll do
- Maintain and improve our Microsoft Sentinel deployment - writing and tuning detection rules, managing data connectors, and reducing alert noise
- Operate and optimise Defender XDR and Defender for Cloud, including policy management and posture recommendations
- Harden our Azure environment across identity, access management, networking, storage, WAF configuration, and logging pipelines
- Contribute to infrastructure-as-code (Terraform or Bicep) for security tooling deployments and configuration drift management
- Investigate suspicious activity surfaced through Sentinel and Defender - triage, escalate, or contain as appropriate
- Support incident response activities including containment, evidence gathering, and post-incident review
- Participate in security risk assessments and threat modelling exercises across new and existing systems
- Coordinate penetration test engagements (scope, logistics, findings review) and work with engineering teams to prioritise remediation
What we’re looking for
- Hands-on SIEM experience, ideally Microsoft Sentinel; equivalent platforms (Splunk, Chronicle, QRadar) considered
- Practical Azure security experience across Defender for Cloud, Entra ID, Azure networking, and cloud security posture management
- Experience writing infrastructure-as-code using Terraform or Bicep in a security engineering context
- Ability to contribute to threat modelling and communicate security risk clearly to engineering and product audiences
- Experience supporting or coordinating penetration testing programmes, including managing remediation cycles
- Familiarity with AI security considerations (securing AI workloads, data exposure risks) and/or using AI tooling to augment security engineering workflows
- A growth mindset and genuine curiosity to keep learning
Nice to Have
- SC-200 (Microsoft Security Operations Analyst) certification
- KQL proficiency for detection rule authoring and threat hunting
- Experience working in a similar fintech/financial services environment
How we reward you
At Flagstone, the benefits extend beyond false gifts like “fruit and snacks”. Instead, we invest in your health, wealth, and professional development. Here’s a selection of our benefits:
- Competitive bonus scheme - designed to reward and recognise high performance
- Flexible benefits budget - a pot to fund meaningful benefits for you, whether it's hormone or fertility testing, cancer screening, neuro-diversity coaching or something that matters for you.
- A range of salary sacrifice options to help you make tax efficient savings on electric cars, nursery schemes, home and tech goods.
- Around the World scheme - 3 months work from anywhere scheme
- Mental wellbeing support – Access therapy and mental health sessions through Spill
- Learning and development – £1,000 personal development budget to help you grow in your role.
- Private health care - Enjoy all the benefits AXA has to offer, including reduced gym memberships and medical history disregarded
- Medical cash plan - To help you with the costs of dental and optical expenses
- Life insurance and Income Protection- four times your annual salary for peace of mind
- Matched pension contributions up to 5%
- 25 days holiday - plus bank holidays, well-being days and volunteering days
- Enhanced Parental Leave – enhanced maternity, paternity and adoption pay.
All are welcome.
At Flagstone, we’re assembling a diverse team that defies our industry’s norms. Think this role could suit you?…
