1mo ago

Security Engineer, Institutional Trading

France·Parismid

EngineeringSecurity Engineer

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Quick Summary

Key Responsibilities

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,

Technical Tools

EngineeringSecurity Engineer

Responsibilities

~2 min read

→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.

→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.

Nice to Have

~1 min read

Familiarity with trading systems or financial operations (market-making, execution, settlement) or close collaboration background with trading/quant teams.
Exposure to blockchain on-chain concepts (wallets, addresses, transactions) but no requirement to audit contracts.
Familiarity with SOC operations, and post-incident forensic analysis.
Familiarity with SOC2, ISO 27001, or financial audit requirements
Any relevant industry certification