MongoDB & Node.js Developer Needed for Database Optimization

We're looking for a backend-focused MERN developer to optimize an existing application's database performance. ### Tasks * Optimize slow MongoDB queries * Improve aggregation pipelines * Add indexes where appropriate * Refactor API endpoints * Reduce response times * Improve pagination and filtering ### Tech Stack * Node.js * Express.js * MongoDB * Mongoose Experience with query optimization, indexing, aggregation pipelines, and production-scale APIs is required. This starts with a small milestone and can lead to ongoing backend work.