Operational Security Engineer – Institutional Trading

Prudence Holdings; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

Prudence Holdings is looking for a hands-on Security Engineer to focus on operational security for off-chain trading processes. This role involves collaborating with the Institutional Trading and Financial Operations teams to ensure secure operations, map out critical assets, and define risk treatment plans. Candidates should have over 5 years of experience in security engineering, including expertise in Threat Modeling and observability tooling. This position also requires effective communication to translate technical risks for senior management.

Qualifications

• 5+ years in security engineering, platform security, or application security experience.
• Proven expertise in Threat Modeling and structured reviews of complex data flows.
• Exceptional ability to translate technical debt into business risk for stakeholders.

Responsibilities

• Partner with teams to map out inventory trading systems and data flows.
• Conduct assessments to identify vulnerabilities and define risk treatment plans.
• Implement and maintain monitoring for security signals and integrate them into SIEM/SOAR.

Skills

Threat Modeling

Platform Security

Application Security

Observability and Detection Tooling

Secrets Management

Technical Due Diligence

Tools

KMS/HSM

Vault

AWS/GCP KMS

TypeScript

Java/Kotlin

Python

Job description

Prudence Holdings is looking for a hands-on Security Engineer to focus on operational security for off-chain trading processes. This role involves collaborating with the Institutional Trading and Financial Operations teams to ensure secure operations, map out critical assets, and define risk treatment plans. Candidates should have over 5 years of experience in security engineering, including expertise in Threat Modeling and observability tooling. This position also requires effective communication to translate technical risks for senior management.