Global Relay

Senior Application Security Analyst - L3

Global Relay
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1 month ago
London, United KingdomSenior
H1B Sponsor

Responsibilities

  • Lead advanced manual security testing and targeted penetration tests across web, mobile, and API surfaces.
  • Own threat modeling for new features and architecture changes using structured frameworks.
  • Design security test strategies for new products and major changes.
  • Serve as the primary application security point of contact and escalation partner for engineering and L1/L2 analysts.
  • Oversee scanning-tool usage, security testing KPIs, triage, escalation, evidence quality, and remediation verification.
  • Build advanced test cases, automation frameworks, and custom tooling to improve testing coverage and efficiency.
  • Track and report metrics such as time-to-remediate and recurring defect patterns to senior stakeholders.
  • Mentor and coach analysts and specialists and develop training materials, playbooks, documentation, and testing standards.
  • Provide root-cause analysis and remediation guidance for complex or systemic security defects.

Requirements

  • 5–8 years of hands-on experience in application security testing.
  • Advanced knowledge of internet, network, web, API, mobile, container orchestration, Kubernetes, and AI/LLM security.
  • Expert understanding of common vulnerabilities and security controls, including OWASP Top 10, API/LLM Top 10, and Mobile Top 10.
  • Advanced Android and iOS security testing experience, including reverse engineering, runtime manipulation, Frida scripting, and Objection.
  • Strong offensive security skills in manual web and API testing, authentication and authorization bypass, session management, business-logic abuse, and data-protection testing.
  • Experience with Kubernetes security, including cluster hardening, RBAC, and workload isolation.
  • Ability to build security automation using Python and Bash and integrate testing with TestRail, Jira, Burp Suite Pro, Postman, and SonarQube.
  • Knowledge of threat actor tactics, advanced persistent threats, MITRE ATT&CK, emerging vulnerability classes, and programming-language-specific remediation techniques.
  • Excellent communication skills and the ability to influence technical and non-technical stakeholders.
  • OSCP or OSWE certification is preferred.
  • Candidates must have the right to work in the UK; visa sponsorship is unavailable.

Benefits

  • Mentoring, coaching, and support for career development.
  • Collaborative, diverse, inclusive, and equal-opportunity workplace.
  • Reasonable adjustments, accommodations, and personal time tailored to individual needs.

Tech Stack

BashiOSKubernetesPostmanPythonSonarQube

Categories

Global Relay

About Global Relay

1,001-5,000 employees

Global Relay is a leading provider of end-to-end recordkeeping solutions for the global financial sector and other highly regulated industries. Founded in 1999, Global Relay delivers a complete suite of compliant communications solutions, spanning a unified, intelligent archive, powerful data connectors, AI-enabled surveillance, and our own Global Relay App. Global Relay’s integrated recordkeeping solutions enable regulated organizations to meet collaboration, privacy, and security requirements.

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