Development and support of a system consisting of:- Monolithic Django service- Micro-service on FastApi- Micro-services on GoLangExperience working with Python:- Working with periodic celery / celery beat tasksDjango:- Participation in writing the asynchronous ModelViewSet module using the libraryasync.io- CRUD generation for models- Using signals, developing proprietary methods to improvequery flexibility- Using GenericFK to build complex relationships between models- Writing complex DBMS queries (using Prefetch, select_related) and optimizing them- Working with PostgreSQL and MongoDB databases- Working with the Kafka message brokerFastAPI:- Working with the Kafka message broker- Working with the MongoDB databaseExperience working with the GoLang language:- Working with the Kafka message broker- Working with MongoDB- Working with PostgreSQL via the gorm database management system- Development of a calculation algorithm with a huge number of conditions, its furtheroptimizationOther technologies:- Deploy with Docker- Communication of microservices via gRPC