A senior engineering review of your SaaS codebase, architecture, backend, frontend, database, security, and scalability risks — with a clear prioritized fix plan.

I do a focused review of your codebase and architecture, then hand you a clear report: what's fragile, what's risky, and a prioritized fix plan with effort estimates. You get a senior engineer's read on your product before committing to a big build.

I've architected multi-app SaaS platforms end-to-end (React + NestJS + Supabase/Postgres), so I know where these systems break. Most clients start here, then move into a build milestone.

Codebase and architecture review

Frontend structure review

Backend/API structure review

Database schema and query review

Authentication and authorization review

Multi-tenant / workspace access review, if applicable

Security and sensitive-data handling review

Performance and scalability risk review

Third-party integration review

Deployment and environment setup review

AI-generated code / technical debt review, if applicable

Prioritized issue list: critical, high, medium, low

Clear fix plan with effort estimates

Recommended next steps for stabilization or rebuild

Optional follow-up build/refactor roadmap

What I Review Frontend: React, Next.js, Remix, Vue, Tailwind, shadcn/ui, state management, routing, dashboard structure, forms, tables, loading/error states, accessibility, and component reuse.

Backend: Node.js, NestJS, Express, APIs, GraphQL, REST, authentication, RBAC, validation, service boundaries, queues, background jobs, webhooks, and business logic.

Database: PostgreSQL, MongoDB, Supabase, Prisma, Mongoose, schema design, indexes, relationships, tenant isolation, migrations, and query performance.

Infrastructure: Environment variables, deployment setup, CI/CD, Docker, Vercel, Cloudflare, Supabase, Redis, queues, logs, and production-readiness.

Security: Auth flows, role permissions, tenant leakage risks, exposed secrets, weak API checks, insecure webhooks, unsafe file handling, and frontend-only business rules.

#sass #supabase #node.js #nodejs #nestjs #react #mongoDB