I audit, diagnose, and optimize legacy or underperforming Node.js and React codebases. I do not just run automated linters and hand you a generic report. I perform deep, manual architectural reviews to identify hidden technical debt, security vulnerabilities, and database bottlenecks that are slowing down your application and costing you money.
My technical audit process is designed to transform chaotic, undocumented code into a highly scalable, enterprise-grade system:
- Backend & API Audit: I analyze your Node.js architecture to identify memory leaks, synchronous blocking code, and slow REST/GraphQL endpoints. I also dive deep into your PostgreSQL schemas to eliminate N+1 query bottlenecks and missing relational indexes.
- Frontend Performance Review: I meticulously inspect your React or Angular frontend for unnecessary component re-renders, bloated bundle sizes, and state management inefficiencies to ensure your app achieves 90+ Lighthouse performance scores.
- Security & Type Safety: I audit your authentication flows (OAuth 2.0 / JWT), verify your strict Role-Based Access Control (RBAC) rules, and identify areas where TypeScript interfaces must be enforced to prevent runtime crashes.
- Actionable Refactoring Roadmap: I do not just hand you a list of problems. I provide a step-by-step, prioritized engineering roadmap to safely refactor monolithic code into decoupled architecture without halting your feature delivery.
What You Receive:
- A comprehensive architectural diagnostic report.
- A clear, technical blueprint for modernization.
- The immediate identification of critical security or performance bottlenecks.
Please note: Message me with a brief overview of your current tech stack and the specific performance issues you are facing before purchasing.