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Director, Senior Security Architect

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Director, Senior Security Architect in UK new

  • Bullish
  • Full time
  • Email
  • London

Responsibilities

  • Build threat models for critical systems and establish prioritized cybersecurity requirements.
  • Partner with Product, Engineering, and Infrastructure teams to design and ship secure software across web, API, mobile, FIX, and trading platforms.
  • Lead global security initiatives and build custom AI-powered tooling to scale the cybersecurity program.
  • Assess vulnerability risks, provide actionable recommendations, and track security health metrics and KPIs for executive reporting.
  • Drive high-impact security projects in a dynamic environment.
  • Provide technical leadership and mentorship to cybersecurity and engineering teams.

Requirements

  • 10+ years of cybersecurity experience, including 5+ years of hands-on coding.
  • Deep expertise in threat modeling, penetration testing, code reviews, and offensive security methodologies.
  • Strong knowledge of IP, DNS, HTTP, SSL/TLS, cryptography, PKI, encryption at rest and in motion, Linux, and public cloud platforms.
  • Proficiency in one or more of C/C++, Java, JavaScript, Python, Go, or Rust.
  • Understanding of OWASP Top 10 and SANS CWE Top 25 vulnerability frameworks.
  • Knowledge of enterprise software development, CI/CD pipelines, and security tooling including SAST, DAST, OSA, vulnerability management, and API traceability.
  • Ability to communicate complex technical risks to executives and engineers and build cross-functional partnerships.
  • Ability to independently drive projects from conception to completion with minimal oversight.
  • Preferred qualifications include experience securing trading, financial-market, regulated, or other high-stakes systems and certifications such as SABSA, TOGAF, OSCP, OSCE, SANS, CREST, or cloud security specialty certifications.

Benefits

  • Full-time onsite work in SoHo, London.
  • Equal opportunity employer committed to a globally diverse workplace.

Bullish

Bullish operates a regulated digital asset platform for institutional and professional investors, built around a spot and derivatives exchange that combines a central limit order book with automated market making. It is regulated by BaFin (Germany), the Hong Kong SFC, and the Gibraltar Financial ...

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