We are building a multi-region, compliance-focused SaaS architecture for healthcare systems where data must remain within country boundaries (India, US, UAE). The system is already partially implemented and running across multiple environments using a hub (control plane) + regional pods (data planes) architecture. We are now expanding and refining critical components. We are looking for an experienced backend/cloud engineer to help with: * Improving onboarding and routing logic across regions * Strengthening API security (token handling, session validation, encryption flow) * Optimizing database performance (avoiding N+1 queries, improving query patterns) * Ensuring consistency across multi-environment deployments * Debugging real-world production issues across distributed systems Tech stack includes: * Django + DRF * PostgreSQL * Redis * Azure (Blob Storage, Key Vault, AKS) * Docker-based deployments The architecture follows a control plane → data plane model, where: * A central hub handles authentication and routing * Regional pods handle all business logic and data We are currently facing challenges around: * Cross-region routing accuracy * Secure token exchange between systems * Maintaining performance under distributed workloads Note: This is not a basic CRUD project. If you have not worked with distributed systems, multi-region setups, or production-grade APIs, this may not be a good fit. --- Future Scope (Important) This is part of a larger system we are actively building. There will be opportunities to work on: * Multi-cloud expansion (AWS / Azure hybrid) * Infrastructure automation (Terraform-based provisioning) * Scaling and observability improvements * Additional modules and region deployments We are looking for someone interested in long-term collaboration, not just a one-time task. --- When applying, include: 1. Your experience with multi-region or distributed systems 2. Any work involving cloud infrastructure or backend scaling 3. How you approach debugging production-level issues Shortlisted candidates will be given more detailed context and specific tasks.