We are looking for a Mid-Senior Backend Developer more focused on Python to join the Research & Development Team. Our current project involves developing one of the leading trading platforms in the USA, serving a user base of over 200,000 online users daily across desktops, mobile devices, and the web. The technology stack includes Python (with frameworks such as Django, Flask, and FastAPI), databases and streaming technologies like PostgreSQL, Kafka, DynamoDB, and Redis, as well as tools such as Docker, Airflow, Kubernetes, and Terraform, with AWS as the cloud environment. The platform's backend services include handling all business processes related to trading, such as order issuance, validation, routing, execution, option price calculation, and reconciliation.