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Senior Application Security Analyst

London💼 Full-time🗓 2026-07-23 → 2026-09-26

Core

Senior technical role leading advanced application security testing, complex vulnerability analysis, and threat modelling for critical applications and services.

Role type

Senior IC Application Security Specialist (Offensive Security & Threat Modelling)

Builds

Security test strategies, automation frameworks, custom tooling, and remediation standards for web, mobile, API, and AI/LLM surfaces.

Domain

Cybersecurity, Application Security, Cloud Security (Kubernetes), AI/LLM Security

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure

Required skills

Advanced application security testing, Threat modelling (STRIDE, PASTA), Penetration testing (Web/Mobile/API), Container/Kubernetes security, AI/LLM security assessment, Offensive security (Business logic abuse, Auth bypass), Automation scripting (Python, Bash), CI/CD security integration

Preferred skills

OSCP, OSWE certifications, Advanced mobile reverse engineering (Frida, Objection), APT/Threat actor tactics knowledge

Technologies

Burp Suite Pro, Postman, SonarQube, TestRail, Jira, Kubernetes, Android/iOS, Python, Bash, MITRE ATT&CK

Responsibilities

Lead advanced security testing and penetration tests; Own threat modelling for new features; Design security test strategies; Act as SME and escalation point for engineering; Oversee scanning tools and CI/CD security; Mentor analysts and specialists; Build automation frameworks and custom tooling; Own security release process and remediation verification; Track and report security metrics.

Seniority

Senior, hands-on IC with mentorship responsibilities

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