MUST HAVE - strong Fast API, Socket IO, Python, Kubernetes Experience in production deployments where there is > 10k users Experience with Fast API . Preferably, this API should have lot of I/O calls that need to be orchestrated for high concurrency requests Experience with queues – Celery or Rabbit MQ or AWS SQS Experience with Databases – Postgres, MongoDB, Databricks, Iceberg Experience with web sockets (socket.io), asynchronous programming (async.io), etc. Experience with Kubernetes – know how APIs can be scaled when deployed on K8S (this is not deploying APIs in k8s which dev ops. This is knowledge on how to run scalable micro services on k8s) No gaps in experience; no overlapping work across multiple companies Experience in production grade Python coding Experience in Microservices/Containers.