Senior/Lead/Principal Application Security Researcher

ication Security Researcher with a strong offensive security and research mindset to lead the discovery, analysis, and remediation of critical and systemic application security vulnerabilities across our products and platforms.
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This role goes beyond finding individual bugs - it focuses on identifying root causes, architectural weaknesses, and recurring security anti-patterns, and driving secure-by-default solutions that prevent entire classes of vulnerabilities in the future.

You will work as a trusted partner to engineering teams, influencing design decisions, improving security posture at scale, and raising the overall security maturity of our applications.

Key Responsibilities:

• Lead offensive security assessments (manual testing, code review, architectural analysis, threat modeling) across complex application ecosystems.

• Discover critical, high-impact, and systemic vulnerabilities rather than isolated or one-off issues.

• Conduct security research to identify emerging attack vectors, abuse cases, and bypass techniques relevant to our applications and platforms.

• Partner closely with software engineers, tech leads, and architects to:

  • Clearly explain risk, impact, and exploitability.
  • Design and implement effective remediations.
  • Ensure fixes are scalable, maintainable, and aligned with engineering realities.

• Drive Secure by Default initiatives by:

  • Defining security guardrails, patterns, and baseline controls.
  • Eliminating insecure defaults and unsafe configurations.
  • Preventing future vulnerabilities through platform-level and framework-level changes.

• Influence application and platform design early in the development lifecycle to prevent vulnerabilities before they are introduced.

• Help shape security standards, best practices, and architectural guidance for application development.

• Mentor engineers and security team members, raising overall security awareness and offensive security skills.

• Collaborate with detection, monitoring, and incident response teams to improve visibility into real-world exploitation.

Required Qualifications:

• 5+ years of deep experience in Application Security with a strong offensive mindset.

• Proven experience finding critical and systemic vulnerabilities in large-scale or complex applications.

• Strong understanding of:

  • Web application security (OWASP Top 10 and beyond).
  • Authentication & authorization flaws.
  • API security.
  • Injection attacks, logic flaws, access control bypasses.
  • Secure design and threat modeling.

• Hands-on experience with manual security testing (not relying solely on automated tools).

• Ability to translate complex security findings into clear, actionable guidance for engineers.

• Strong communication skills and experience working collaboratively with engineering teams.

Preferred Qualifications:

• Published security research and CVEs, including technical blogs, advisories, whitepapers, and conference presentations.

• Experience driving platform-level or framework-level security improvements.

• Background in security research, vulnerability discovery, or red teaming.

• Experience influencing or leading Secure by Default / security-by-design initiatives.

• Familiarity with cloud-native architectures, microservices, and large distributed systems.

• Ability to balance security rigor with product velocity and developer experience.

Benefits & Perks:

Check out our benefits site which explains our various benefits, including wellbeing reimbursement, generous parental leave, adoption assistance, fertility benefits, and more. Visit for the full

Open to Flex (1-3 days/week in the office), or Office-Based (4-5 days/week in the office)

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