Platform Security Engineer

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  Identify, assess, and help remediate security risks across our AWS infrastructure, Terraform code, application architecture, and product code.

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  Partner with engineering teams to design secure systems and incorporate security into normal development and operational workflows.

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  Participate in security reviews of RFC and PRR documentation, providing clear, actionable feedback on architecture, data flows, access controls, abuse cases, and technical risk.

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  Review application and infrastructure changes where additional security scrutiny is warranted.

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  Participate in external penetration tests, including preparation, technical coordination, analysis of findings, remediation planning, and validation of fixes.

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  Help improve the effectiveness and repeatability of the penetration-testing program, with the opportunity to assume ownership of the program over time.

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  Serve as the lead platform investigator during security and privacy incidents, working within the incident-response process led by the Head of Security.

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  Analyze application, cloud, identity, network, audit, and infrastructure telemetry to determine the scope, impact, and root cause of incidents.

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  Translate investigation findings into containment actions, durable remediations, improved detections, and clear technical documentation.

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  Contribute to the design, implementation, tuning, and maintenance of SIEM detection rules that monitor our platform.

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  Investigate and respond to alerts involving AWS infrastructure, application behavior, access patterns, data movement, and other platform activity.

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  Improve logging and telemetry where existing data is insufficient to detect threats or investigate incidents.

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  Develop security tooling and automation that help engineers identify and address vulnerabilities earlier.

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  Partner with SRE and engineering teams on cloud configuration, identity and access management, secrets management, vulnerability management, and infrastructure hardening.

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  Help establish practical security standards that reduce risk without unnecessarily slowing product development.

• Hands-on experience in application security, cloud security, infrastructure security, or security-focused site reliability engineering.

• Experience securing production systems in AWS, including familiarity with identity, networking, logging, data protection, and common cloud attack paths.

• Strong working knowledge of Terraform and infrastructure-as-code security practices.

• The ability to assess security across both infrastructure and application layers rather than treating them as separate environments.

• Experience reviewing application architecture or source code for security vulnerabilities and design weaknesses.

• Familiarity with common application, API, authentication, authorization, and data-security risks.

• Experience investigating complex technical events using application logs, cloud telemetry, audit trails, and other security data.

• Experience writing, tuning, or responding to SIEM detection rules.

• The ability to distinguish meaningful security signals from expected production behavior and noisy telemetry.

• Experience evaluating penetration-test findings, determining their practical risk, and partnering with engineers on remediation.

• Strong scripting or software-development skills for building security tools, automations, and integrations.

• Demonstrated proficiency with agentic software development.

• Sound judgment when balancing security risk, operational reliability, engineering effort, and product priorities.

• Clear written and verbal communication, including the ability to explain technical risks and recommended actions to both engineering and non-engineering stakeholders.

• A collaborative approach that helps engineering teams build safer systems and make informed security decisions.

• Partnership with IT Security in building and supporting each security domain

• Technical project management experience; ability to build a plan, clarify priorities, and both lead a team of collaborators and yourself to execute with urgency.

• Experience serving on a security or privacy incident-response team.

• Experience leading technical investigations during security or privacy incidents.

• SANS FOR509 training or certification.

• Purple teaming experience, including using offensive findings to improve defensive coverage.

• Experience owning or coordinating an external penetration-testing program.

• Experience with threat modeling, detection engineering, cloud forensics, or security automation.