Developing and launching an ERP and POS system specialized for buying group and franchise applications.Led the transition from AngularJS to Angular, establishing a new project structure. Rebuilt stock management and POS modules from Frontend to Backend. Worked closely with business teams to foster a culture of process improvement.Boosted developer experience and app robustness by using Pydantic for HTTP request validation. Automated URL generation with namespaces in Django, allowing clients to safely consume URLs and saving development time, especially during app revamps.Transformed a reporting system initially lacking scale and performance optimization into a robust, production-level solution. By integrating Celery and Redis, I significantly enhanced system efficiency, reducing CPU usage by approximately 86% while increasing report generation speed by approximately 95%.Contributed significantly to a custom Shopify integration solution, managing complexities across hundreds of stores and thousands of products. Developed innovative solutions for unique stock locations and custom pricing requirements.