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Director, Senior Security Architect

London💼 Full-time🗓 2026-09-14 → 2026-09-26

Core

Designing security architecture and defenses for mission-critical digital asset trading systems, exchanges, and data platforms.

Role type

Senior Security Architect, hands-on IC

Builds

Secure software architectures, threat models, and AI-powered security tooling for Bullish Exchange, CoinDesk Indices, and Data.

Domain

Digital assets, cryptocurrency, financial markets, cybersecurity

Deliverable

production ML models | product features | infrastructure

Required skills

threat modeling, application security, cloud security, network protocols, cryptography, offensive security, code review, vulnerability assessment, CI/CD security, technical leadership

Preferred skills

trading system security, regulated financial systems security, AI tooling development

Technologies

AWS, Azure, GCP, C/C++, Java, JavaScript, Python, Go, Rust, SAST, DAST, OSA, FIX protocol

Responsibilities

build complex threat models, design secure software for web/API/mobile/FIX, lead global security initiatives, assess vulnerability risks, drive high-impact projects, mentor engineering teams

Seniority

Senior, hands-on IC with leadership influence

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