Samuel Taylor

Helping Organizations Validate & Reduce Real Cyber Risk | Offensive Security Sales Engineer | Adversary Simulation Specialist | OSCP+ | CRTO

Greater Southampton Area

About

Former Head of Offensive Security and hands-on practitioner, now Solution Architect at Horizon3.ai, helping organisations uncover and prioritise real-world security risks through autonomous security testing. With deep experience across Red Teaming, Penetration Testing, and Purple Teaming, I’ve both led high-performing offensive security teams and delivered advanced adversary simulations firsthand. I specialise in translating real-world attack techniques into clear, actionable insights that drive remediation and measurable risk reduction. Focused on aligning security with business outcomes, I work closely with organisations to continuously validate their defences against evolving threats using frameworks such as MITRE ATT&CK®. Passionate about offensive security and innovation, I help organisations move from reactive defence to proactive, continuous security validation.

Experience

  • Senior Sales Engineer at Horizon3.ai
    Feb 2026 - Present · 5 mos

  • Acora - IT, Cyber & AI (Full-time · 3 yrs 1 mo)
    • Head of Offensive Testing
      Feb 2025 - Feb 2026 · 1 yr 1 mo

    • Senior Security Architect
      Feb 2023 - Feb 2025 · 2 yrs 1 mo

  • Secrutiny Limited (5 yrs 5 mos)
    • Cyber Security Architect
      Oct 2019 - Feb 2023 · 3 yrs 5 mos

    • Cyber Security Architect
      Oct 2017 - Feb 2023 · 5 yrs 5 mos

    • Security Operations Manager
      Jan 2019 - Oct 2019 · 10 mos

  • Information Assurance Security Analyst/Engineer and Cyber Security Lead/Architect at Leidos
    Jun 2016 - Oct 2017 · 1 yr 5 mos

  • Kingfisher IT Services (3 yrs 1 mo)
    • IT Security and Compliance Analyst
      Jan 2015 - May 2016 · 1 yr 5 mos

    • IT Security Administrator
      May 2013 - Jan 2015 · 1 yr 9 mos