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Oisin Maguire

Security Engineer at Granite AI · Application security

Cork, IrelandGranite AILondon School of Economics
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About

Security Engineer at Granite AI, focused on application security. Wrote the IAM service that now handles 4 million requests a day. Reduced cloud spend on product security by 35% in two quarters. Most at home with OWASP and SAST. Open-source contributor on weekends.

Skills
SASTcloud securityIAMOWASP

Experience

  1. GR
    Security Engineer
    Granite AI
    Feb 2026 – Present · 8 mo · Cork, Ireland
  2. IN
    Security Engineer
    Indeed
    Oct 2023 – Feb 2026 · 2 yr 4 mo · Cork, Ireland

Education

  1. London School of Economics
    BSc, Information Technology
    2020 – 2023

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