• Revived and stabilized a legacy Node.js SaaS platform by resolving outdated dependencies and environment issues. • Implemented subscription workflows using Stripe integrations, webhook handling, and custom Strapi plugin enhancements. • Resolved authentication and authorization issues using AWS Cognito across protected application flows. • Migrated static asset storage from VM-based hosting to AWS S3, improving reliability and scalability. • Optimized bulk import/export performance and addressed production security issues in existing plugins.