Developed secure signing capabilities and enhanced CI reliability across two repositories over a two-month period. For the dwallet-network project, introduced an AWS KMS Signer in TypeScript, enabling secure transaction signing by integrating AWS Key Management Service with a dedicated client and signer implementation. Updated build workflows and dependencies to support this new cryptographic functionality, improving onboarding for security-focused features. In the Shubhamsaboo/eliza repository, strengthened continuous integration by modifying GitHub Actions workflows to run integration tests against the pull request target branch, reducing regression risk and improving test reliability. Work utilized TypeScript, Node.js, AWS KMS, and CI/CD best practices.