Synchronous WSGI Bottlenecks, High Memory & Slow AI Streaming
Django Monolith to Asynchronous FastAPI Modernization
Upgrade blocking Django backends to asynchronous FastAPI microservices. We modernize ORMs, standardize Pydantic schemas, and scale concurrency 8x.
Diagnostic Symptoms
Indicators That Your Platform Has This Bottleneck
Common performance, cost, and reliability warning signs that require immediate engineering remediation.
Django WSGI Workers Blocking on External APIs
Synchronous workers locking CPU threads while waiting for third-party HTTP and LLM calls.
Inability to Support Streaming AI Responses
Django lacking native async Server-Sent Events (SSE) and WebSockets for generative AI.
Heavy Server Process Memory Footprint
Running dozens of heavy Django worker containers consuming gigabytes of expensive RAM.
Execution Playbook
Step-by-Step Remediation Plan
Our proven 4-phase engineering methodology for eliminating this bottleneck with zero downtime.
Async SQLAlchemy 2.0 & Alembic Setup
Porting Django ORM models to async SQLAlchemy 2.0 with non-blocking asyncpg drivers.
Pydantic v2 Rust-Compiled Schemas
Replacing Django forms and serializers with high-speed Pydantic v2 validation models.
Incremental Reverse Proxy Routing
Proxying high-concurrency API routes to FastAPI while Django admin remains active.
Uvicorn & uvloop Production Tuning
Running asynchronous FastAPI containers on Uvicorn with connection-pooled PostgreSQL.
Technical Audit
Remediation Checklist
Actionable engineering criteria verified by our senior architects before signing off on production deployments:
Expected Business & Technical Impact
Measurable performance metrics achieved upon completing this remediation:
Custom software
Senior-only teams design and build custom software around your actual workflow — scoped in two weeks, shipped in weekly increments you can open in staging.
View Service Capabilities →Frequently Asked Questions
Questions About This Remediation
Can we keep Django's admin portal while running FastAPI for public APIs?
Yes! A common architecture is using Django exclusively for administrative dashboards while FastAPI handles high-concurrency public API traffic against the same database.
How does FastAPI compare to Django REST Framework (DRF)?
FastAPI is natively asynchronous, leverages Pydantic v2 (written in Rust) for 5x faster serialization, and automatically generates interactive OpenAPI documentation.
Related Playbooks
Other Engineering Problem Playbooks
Next.js 15 Performance Optimization & Core Web Vitals Fix
Diagnose and fix slow Next.js page loads, excessive client bundles, and poor Core Web Vitals. We optimize component boundaries to achieve sub-second LCP.
AWS Cloud Cost Reduction Audit & FinOps Remediation
Eliminate cloud waste and protect operating margins with our 14-day AWS FinOps audit. We right-size compute, adopt spot instances, and clean up idle resources.
Codebase Technical Debt Remediation & Modernization
Rescue aging, brittle codebases. We refactor monolithic spaghetti into clean modular components, establish strict type-safety, and unblock feature delivery.
PostgreSQL & Database Query Performance Optimization
Eliminate database bottlenecks before an outage. We analyze slow query logs, build targeted composite indexes, configure PgBouncer, and speed up queries 10x.
Need our senior architects to resolve this bottleneck?
Book a 30-minute technical discovery call. We analyze your stack, establish metrics, and deliver immediate fixes.