Database & Cache Migration (MongoDB + Redis, future OpenSearch) We’re rebuilding our backend infrastructure for a SaaS platform and starting with database modernisation. This project involves: Migrating four MongoDB servers (GCP VMs) to a single MongoDB Atlas M40 cluster Migrating multiple Redis caches to Google Cloud Memorystore or Redis Cloud Updating connection strings and verifying app compatibility Ensuring backups, replication, and authentication are configured (Next phase: migrating Elasticsearch clusters to OpenSearch once DB/Redis are stable) You’ll work directly with the system owner — we already have SSH access to the current VMs and full control of the data. Required Skills: MongoDB (Atlas setup, mongodump/mongorestore) Redis / Cloud Memorystore Node.js and Python backend experience (for connection updates) DevOps (Docker, GCP, networking basics) Deliverable: A single, stable managed MongoDB + Redis environment with verified data integrity and app connectivity. No agencies. Individual backend or DevOps freelancers only. Strong performers will be invited to continue with OpenSearch + Backend rebuild phases next.