Designing and implementing restful apis using django rest framework and fastapi 1. integrating mysql and nosql databases, optimizing queries and data models 2. developing microservices for data import/export and asynchronous background tasks 3. writing unit and integration tests with pytest to ensure system reliability and maintainability 4. participating in code reviews, adhering to solid principles, and following tdd practices 5. collaborating with frontend and devops teams under nda conditions to deliver high - quality, scalable backend solutions. this role provided me with solid experience in production - level backend development and strengthened my understanding of scalable system design and team collaboration within agile workflows