Security Engineer, Institutional Trading

Blockchain · Londonsenior

En corto

▸Ingeniero de seguridad operativo para trading institucional, enfocado en infraestructura fuera de cadena y gestión de riesgos.
▸Diseñas controles de seguridad, monitoreas anomalías y colaboras con equipos financieros y de trading para proteger procesos de alto valor.
▸Destacado: incorporas inteligencia artificial y agentes LLM en infraestructura segura, sin auditoría de contratos inteligentes.

Ability to raise, read and audit Pull Requests in at least one language used in our stack

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¿Qué piden?

✓5+ años en ingeniería de seguridad, seguridad de plataformas o seguridad de aplicaciones.
✓Experiencia comprobada en modelado de amenazas (STRIDE) y evaluación de flujos de datos complejos.
✓Conocimiento práctico en herramientas de observabilidad (SIEM, logs, métricas) y escritura de reglas de detección.
✓Experiencia con KMS/HSM, gestión de secretos (Vault, AWS/GCP KMS) e implementación de IAM con privilegio mínimo.
✓Habilidad para traducir riesgos técnicos en impacto de negocio para altos directivos (CFO, CTO, Head of Trading).
✓Capacidad para revisar y auditar Pull Requests en TypeScript, Java/Kotlin o Python.

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TypeScriptJavaKotlinPythonSIEMSOARKMSHSMVaultAWS KMS

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Blockchain is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. You’ll be the hands-on security engineer embedded with the Institutional Trading and Financial Operations (FinOps) team. Your focus is the secure operation of off-chain trading processes and infrastructure that empowers our institutional business: integrations, signing flows, key custody interfaces, middle-office workflows, order routing and settle pipelines that handle significant capital. You will support risk assessments, operating controls, automation to detect operational anomalies and remediation coordination. This is a high-visibility role where you will focus on operational security engineering - ensuring that the tools and processes our traders use are resilient against both external threats and internal errors. This role does not require smart-contract auditing. WHAT YOU WILL DO • Partner with Trading, Middle Office and Quant (Institutional FinOps) teams to map out inventory trading systems, data flows, third-party integrations and custody/settlement touchpoints. • Conduct deep-dive assessments mapping critical assets and workflows to identify structural vulnerabilities. You will be responsible for defining the Target State and drafting the strategic Risk Treatment Plans (RTP) required to meet institutional-grade standards (e.g., CCSS, NIST, DORA). • Act as the primary security liaison for Senior Management and third-party vendors. You will translate complex technical gaps into actionable business risk summaries, drive vendor evaluations for core security infrastructure, and manage the project lifecycle for high-impact posture uplifts. • Implement and maintain monitoring for FinOps-specific security signals such as abnormal order patterns, signature misuse, unusual settlements. You will integrate these signals into our SIEM/SOAR for real-time response. • Support secrets and key-management hygiene. You will ensure app/service keys are stored in KMS/Vault, scoped to least privilege and rotated automatically to prevent credential leakage. • Assist product security in triage of SAST/SCA findings for FinOps-related repositories. You will help implement CI checks and remediation playbooks. • Participate in incident exercises, post-incident reviews and remediation tracking for trading incidents. • Document controls and produce concise risk summaries for FinOps leads and the Security. • AI-Driven Innovation: Research, architect, and safely embed cutting-edge AI utilities and Large Language Model (LLM) agents directly into our secure infrastructure. WHAT YOU WILL NEED • 5+ years in security engineering, platform security, or application security experience. • Proven expertise in Threat Modeling. Ability to perform structured reviews (e.g., STRIDE) of complex data flows and operational processes. • Experience with observability and detection tooling (SIEM, logs, metrics) and ability to write basic detection rules. • Practical experience with KMS/HSM, secrets management platforms (Vault, 1Password, AWS/GCP KMS), IAM patterns and least-privilege. • Exceptional ability to translate "Technical Debt" into Business Risk for C-suite stakeholders (CFO, CTO, Head of Trading). • Ability to raise, read and audit Pull Requests in at least one language used in our stack (TypeScript, Java/Kotlin, Python). • Experience conducting technical due diligence and scoping for third-party security integrations. <s

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