Refine NestJS/PostgreSQL/Redis/React Native App

Fix & Improve Existing NestJS + PostgreSQL + Redis + React Native Project
Hello
I’m looking for an experienced full-stack developer to help me fix, refactor, and improve my existing project built with NestJS, PostgreSQL, Redis, and React Native.

The project is already developed, but it currently has bugs, unfinished logic, and stability issues. I need someone who can understand existing code, fix problems, and make the system stable and production-ready.

Tech Stack:

Backend: NestJS

Database: PostgreSQL

Caching / Queue: Redis

Mobile App: React Native

API: REST API

Tasks:

Review and analyze existing NestJS backend

Fix bugs and logical issues

Improve code structure and performance

Fix database-related issues (PostgreSQL)

Fix and optimize Redis usage (cache / queue / sessions)

Fix API problems and response handling

Review and fix React Native app bugs

Ensure smooth communication between backend and mobile app

(Optional) Minor feature improvements

Requirements:

Strong experience with NestJS

Good experience with PostgreSQL

Practical knowledge of Redis

Solid experience with React Native

Experience working with existing / legacy code

Clean code, debugging, and problem-solving skills

Good English communication

Budget:

Fixed price or hourly — open to discussion

Please include in your proposal:

Your experience with NestJS + PostgreSQL + Redis + React Native

Examples of similar projects (if any)

Your hourly rate or fixed price

Estimated timeline