Mark P.
Security Team Lead @Flagstone
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WORK HISTORY
Security Team Lead @Flagstone
GB
Hired and built a security engineering team from the ground up, growing to 4 engineers and establishing a collaborative, high-performance culture.Designed and implemented Flagstone’s security function, deploying Microsoft Sentinel and Defender XDR to improve detection and response across the organisation.Partner with senior engineering leadership on security roadmaps and strategy, aligning initiatives with business priorities and long-term risk reduction.Led incident response activities and facilitated tabletop exercises to strengthen organizational readiness and reduce response time.Embedded NIST CSF-aligned practices into security operations, and introduced OKRs to drive measurable progress and accountability.Advanced application security maturity by implementing SAST and improving secure development practices in collaboration with product engineering teams
EDUCATION
Blessed Robert Johnson Catholic College
High School
TDM Wyre Academy
City & Guilds Intermediate Diploma in ICT Professional Skills
Telford College of Arts and Technology
Creative Media in Photography, TV and Film Diploma Level
ABOUT MARK P.
I’m a Security Professional with six years of experience designing, building, and maturing security functions that help organisations strengthen their resilience. My expertise is rooted in the Microsoft and Azure ecosystem, with a proven track record deploying Microsoft Sentinel and Defender XDR to enhance detection and response capabilities.I’ve led the build-out of security functions, from setting OKRs and hiring engineers to embedding frameworks such as NIST CSF and ISO27001. My experience spans leading incident response, running tabletop exercises, and partnering with teams across the business to make security practical, scalable, and sustainable.On the technical side, I’ve worked across cloud security and application security to close vulnerabilities and reduce risk. On the leadership side, I focus on creating collaborative teams that deliver measurable results and elevate security culture.I’m particularly interested in opportunities where I can combine hands-on technical delivery with security program leadership, helping organisations scale their detection, response, and application security practices.
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