Worked on the saleor/saleor and saleor/apps repositories, focusing on backend reliability and payment integration. Stabilized background processing by refining Celery worker dependencies and enabling SQS-based task queuing, which improved asynchronous task reliability and deployment consistency. Updated dependency management using Python and Dockerfile, removing direct pycurl usage in favor of celery[sqs] extras for reproducible builds. In the saleor/apps repository, resolved Stripe PaymentIntent metadata propagation issues to fix webhook processing failures, ensuring accurate metadata flow across the API. Added targeted tests to validate Stripe integration, enhancing traceability and stability for payment workflows. Emphasized maintainability and clear commit rationale throughout.