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Security Engineer | Generalist

ARQ London, England, United Kingdom

Financial Services · 2-10 employees

Yesterday
Remote security Senior (5-10 yrs) Full-time United Kingdom
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About the role

You will build and improve SIEM detection rules, alert pipelines, and automated response playbooks while conducting cloud security assessments across AWS and Kubernetes. Additionally, you will drive application security initiatives and establish a scalable framework for third-party vendor security assessments.

What they look for

SIEM Detection engineering Cloud security AWS Kubernetes Application security Threat modelling Secure code review API testing EDR XDR Identity and access management Vendor security assessment DLP Incident response AI security

Requirements

The role requires 4–7 years of cybersecurity experience, including at least 2 years in a regulated fintech or banking environment. Candidates must possess hands-on experience with cloud infrastructure, detection engineering, and securing AI-driven workflows.

Benefits

Competitive salary Stock options Discretionary performance bonus Latest tools and technology

Full description

What you'll do

  • Build and improve SIEM detection rules, alert pipelines, and automated response playbooks (Datadog SIEM, CrowdStrike, Cloudflare)
  • Contribute to incident response readiness, including IR playbooks, tabletop exercises, and forensic procedures
  • Support DLP strategy and data protection controls across Google Workspace, Slack, and internal tooling
  • Conduct cloud security assessments across AWS and Kubernetes environments
  • Drive application security initiatives: threat modelling, secure code review support, API testing, and security pipeline improvements
  • Assess and secure AI/agentic workflows across the company — reviewing prompts, preventing destructive actions, and controlling data exposure
  • Establish and run the vendor security assessment process — building a scalable due diligence framework for third-party onboarding

What you'll need

  • 4–7 years in cyber security, ideally having built or significantly shaped the security function at a startup or high-growth company - you've been the person who sets things up, not just maintains them
  • 2+ years at a regulated fintech/bank/payment company
  • Hands-on experience with cloud infrastructure security (AWS, Kubernetes)
  • Working knowledge of SIEM platforms and detection engineering - you've written detection rules, not just consumed alerts
  • Familiarity with application security practices: threat modelling, secure code review, CI/CD pipeline hardening, and API security testing
  • Experience with endpoint security tooling (EDR/XDR) and identity & access management in a SaaS-heavy environment (Google Workspace, Okta/Cloudflare Access, SSO/SCIM)
  • Ability to assess and secure emerging AI/agentic tooling - you understand the risks of LLM integrations, MCP servers, and automated workflows, and can define practical guardrails
  • Experience running or contributing to vendor security assessments and third-party due diligence
  • Strong written and verbal communication
  • Business fluent in English

Benefits

  • Competitive salary and benefits
  • Stock options, so you own part of what you build
  • Discretionary performance bonus
  • The latest tools and technology
  • A world-class team that will challenge and grow your skills
  • The opportunity to help build the best fintech app in Latin America
  • Office Policy: 3-4 days a week in-office

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