Senior Product Security Engineer

Senior Product Security Engineer The Role We're hiring a Senior Product Security Engineer to work hand-in-hand with developers to secure the product across its entire lifecycle. You'll be the person who makes our platform defensible — through design reviews, threat modeling, hands-on penetration testing, and secure-coding partnership — and you'll do it as a collaborator who helps engineers ship securely, not a gatekeeper who slows them down. This role partners closely with product engineering and platform engineering teams. What You'll Do

• Partner directly with developers to secure the product across the Software Development Life Cycle (SDLC), embedding security early rather than bolting it on at the end.
• Lead security design and architecture reviews, and run threat modeling on new features and services.
• Perform hands-on penetration testing of web applications and Application Programming Interfaces (APIs), and translate findings into clear, prioritized, fixable work.
• Conduct secure code reviews and help define secure-coding standards and security acceptance criteria.
• Operate and tune Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), and dependency / supply-chain scanning, and triage what they surface.
• Help engineers understand the "why" behind findings so the same class of issue doesn't recur.
• Contribute security evidence and rigor to our compliance posture (System and Organization Controls 2, or SOC 2, ISO 27001, etc.). What You'll Need (Required)
• A strong track record in product or application security — you've measurably made real products more secure.
• Hands-on penetration testing experience against web applications and APIs.
• Deep understanding of how modern web applications work — single-page front ends, APIs, authentication and authorization (for example, OAuth 2.0 / OpenID Connect), sessions, and the common ways each is attacked (for example, the Open Worldwide Application Security Project, or OWASP, Top 10).
• Experience running security design reviews and threat modeling.
• Solid understanding of the SDLC and how to embed security into it.
• Strong communication skills — you work directly with developers and can explain risk in terms they'll act on. Nice to Have
• Familiarity with open-source security tooling (for example, OWASP ZAP and Burp Suite Community Edition for testing, Semgrep for SAST, Trivy or Grype for dependency and container scanning, Nuclei for templated scanning).
• A relevant offensive-security certification (for example, Offensive Security Certified Professional, or OSCP).
• Cloud security experience (Amazon Web Services, Microsoft Azure, or Google Cloud Platform) and container / Kubernetes security.
• Experience supporting a SOC 2, International Organization for Standardization (ISO) 27001, or similar program.
• Background in enterprise or regulated environments where deployment security is non-negotiable. What Success Looks Like (First 90 Days)
• You've reviewed the product's architecture and threat surface and identified the highest-priority security risks.
• A repeatable, lightweight process exists for security design reviews on new work.
• Security findings have a clear triage-to-remediation path, and developers know how to engage you early. Location and Work Model Remote in Brazil

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