Ross Simpson is a Senior Principal Security Engineer based in New Zealand with 12 years of focused experience delivering cloud-native infrastructure, security, and large-scale migrations. Known as a force multiplier, he blends hands-on sysadmin roots (from racking datacenter servers) with language-agnostic software development to translate business goals into pragmatic, elegant infrastructure-as-code solutions on AWS. He excels at stakeholder communication, treating many technical challenges as communication problems and building shared understanding across teams. Ross contributes to security tooling in the open-source community, improving maintainability and reconnaissance workflows such as TLS certificate-based subdomain monitoring. An expat, runner, and father, he prefers dependable, “boring” technology that reliably scales while keeping incident response and operational resilience front of mind.
Sublert is a security and reconnaissance tool which leverages certificate transparency to automatically monitor new subdomains deployed by specific organizations and issued TLS/SSL certificate.
Role in this project:
Security Engineer
Contributions:5 commits in 5 days
Contributions summary:Ross primarily focused on improving the functionality and maintainability of the security tool. They corrected errors in the logging of errors, made Slack integration more configurable by allowing customization of the sleep setting and @channel notifications. Furthermore, the user improved the efficiency of the subdomain retrieval process by deduplicating and sorting the output from the certificate database lookup.
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Ross Simpson - Senior Principal Security Engineer at Envato