Worked on hardening CI/CD security and stabilizing pipelines across amplitude/amplitude-docs, amplitude/Amplitude-TypeScript, and amplitude/experiment-js-client. Focused on enforcing deterministic builds by pinning GitHub Actions to specific commit hashes using YAML, which reduced the risk of upstream changes impacting workflow reliability. Addressed a parsing bug in an automation script to ensure consistent execution without altering workflow semantics. Leveraged DevOps practices and automated tooling to coordinate cross-repository improvements, standardizing CI security and deployment processes. These efforts improved auditability and deployment confidence, delivering consistent security practices across documentation and client libraries while maintaining the intended behavior of existing CI/CD workflows.