Security Engineer

New Today

Responsibilities
Help to improve and maintain our Azure-based security tooling, including Microsoft Sentinel, Defender XDR, and Defender for Cloud. Contribute to the optimisation, tuning, and maintenance of SOC tools. Investigate suspicious activity and support incident response when needed. Contribute to cloud hardening in areas such as identity, access, networking, storage, WAF, and logging. Participate in security risk assessments, threat modelling and vulnerability management. Support penetration testing by organising test execution, reviewing results, and helping teams prioritise fixes.
Qualifications
Around 3-5 years in a security engineering or internal security team role. Practical understanding of cybersecurity fundamentals and common risks. Experience with infrastructure‑as‑code (Bicep, Terraform, or similar). Familiarity with PowerShell for automation or general scripting tasks. Good problem‑solving skills and attention to detail. Able to work in a fast‑moving environment with competing priorities. Some knowledge of frameworks like SOC 2, ISO 27001, GDPR, or NIST CSF. A growth mindset and curiosity to keep learning.
About Flagstone Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work. Each definition shares a common thread: our unique culture. It is our pride and joy and our competitive advantage. To revolutionise the savings market, we need to be at our best. High performance takes more than talent – it takes a culture of kindness, respect, and growth. That’s why we’re building a diverse, inclusive community where your voice is heard and valued. With close support and room to develop, you can surpass even your own expectations and be rewarded for it. We may not change the world, but we can change the world of financial technology. And all it takes is a winning mix of drive, talent, and empathy. Our culture celebrates all three. 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. 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.
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Location:
City Of Westminster
Job Type:
FullTime

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