Freelance Performance & Scalability Programmer: Fixing Slow Django, React, PostgreSQL & Cloud Apps

Is your web application suffering from multi-second API response times, database CPU spikes at peak traffic, memory leaks, or poor Core Web Vitals (LCP/INP)? Before spending 5x more on larger cloud servers, bring in a Senior Freelance Performance Programmer to profile and eliminate the root-cause bottlenecks.

Hire Aldian Fazrihady on Upwork for backend, database, and frontend performance engineering.

Where I Deliver 10x–100x Speedups

  • Database & ORM Profiling: Logging and eliminating Django ORM / SQLAlchemy N+1 queries, adding composite/partial PostgreSQL indexes, and tuning asyncpg / PgBouncer connection pools.
  • Multi-Tier Caching: Designing RFC 7234 HTTP downstream/upstream caching, Redis/Memcache hot-key protection, and negative caching for external APIs.
  • Frontend Bundle & Worker Offloading: Moving heavy computation (SQLite vector search, ONNX ML embeddings, Excel/PDF parsing) off the main UI thread into dedicated Web Workers.

About the Author — Hire Freelance Programmer Aldian Fazrihady

Aldian Fazrihady is a Top-Rated Senior Freelance Programmer, Freelance Full Stack Developer, and AI Application Engineer with 15+ years of production software engineering experience and Google Cloud Professional Cloud Architect & Data Engineer certifications. He specializes in building custom LLM & autonomous AI agents, RAG pipelines, Next.js/React PWAs, Python (Django/FastAPI), Go microservices, and serverless cloud infrastructure on Google Cloud Run and AWS.

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