You will get Production Node.js Backends — Express / NestJS APIs, DBs & Fixes
Project details
Need a reliable backend that actually survives production? I build and fix Node.js backends (Express, NestJS) focused on three outcomes: stability, security, and fast iteration. I deliver clear API contracts, robust data handling, and operational readiness so your product ships faster and costs less to maintain.
What I provide:
REST & GraphQL endpoints with clear API contracts.
Authentication & authorization: JWT, OAuth2, RBAC, refresh flows.
Database design & integrations: PostgreSQL (migrations, transactions, indexing), MySQL, MongoDB with ORMs (Prisma / TypeORM / Sequelize) or query builders.
Data safety & performance: connection pooling, pagination, bulk operations, query optimization, caching (Redis).
Background jobs & queues: BullMQ / RabbitMQ, retry logic, idempotency.
Realtime (WebSockets / Socket.io) or gRPC where needed.
Input validation, rate limiting, structured logging, error handling, and health checks.
Docker, basic CI/CD, environment config, and production deployment guidance.
Tests: unit and integration for critical flows.
What I provide:
REST & GraphQL endpoints with clear API contracts.
Authentication & authorization: JWT, OAuth2, RBAC, refresh flows.
Database design & integrations: PostgreSQL (migrations, transactions, indexing), MySQL, MongoDB with ORMs (Prisma / TypeORM / Sequelize) or query builders.
Data safety & performance: connection pooling, pagination, bulk operations, query optimization, caching (Redis).
Background jobs & queues: BullMQ / RabbitMQ, retry logic, idempotency.
Realtime (WebSockets / Socket.io) or gRPC where needed.
Input validation, rate limiting, structured logging, error handling, and health checks.
Docker, basic CI/CD, environment config, and production deployment guidance.
Tests: unit and integration for critical flows.
Programming Languages
JavaScriptWhat's included
| Service Tiers |
Starter
$30
|
Standard
$100
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 1 day | 5 days | 10 days |
Number of Revisions | 3 | 3 | 3 |
Number of Pages | 1 | 1 | 1 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - |
About Muhammad
Full Stack Web Developer | Next.js, Node, Go, LLMs Integrations
Islamabad, Pakistan - 5:24 pm local time
Real-time features, fine-grained data security, and LLM-driven automations to turn data into action.
• What I deliver: production REST/GraphQL APIs, Next.js UIs, resilient Go/Node services, Docker-ready deployments, and clear handovers.
• Security & compliance: Postgres Row-Level Security (RLS), JWT/OAuth2, RBAC, audit-friendly logging, input validation, and rate limiting.
• Real-time & low-latency: WebSockets (persistent), gRPC, event-driven microservices, Kafka / RabbitMQ, and robust retry/idempotency patterns.
• Data & performance: Postgres/MySQL/MongoDB schemas, indexing, query tuning, Redis caching, pagination, and background workers for heavy jobs.
• Observability & reliability: structured logs, health checks, Prometheus/Grafana, Sentry, CI/CD, and automated backups.
• AI & LLM automation: Contextual Summaries and Structured Insights, RAG (retrieval-augmented generation), embeddings/vector DBs, prompt pipelines, and LLM orchestration for features like smart search, auto-summaries, and insights.
• Engineering quality: typed APIs, unit + integration tests, component-driven frontends (TypeScript + Tailwind / ShadCN), and maintainable code structure.
Impact examples:
• Built compliant hospital workflows with Postgres RLS and audit trails for secure data access.
• Launched persistent WebSocket systems for real-time messaging and multiplayer features, reducing dropped events.
• Designed distributed media pipelines (RabbitMQ + worker fleet) with central job-state tracking and fault-tolerant retries.
• Integrated LLM to surface clinical insights from patient history and RAG search in context evolvable custom chatbots.
Tell me your top constraint (privacy, latency, budget, compliance) and I’ll propose a focused plan with milestones and risk controls.
Steps for completing your project
After purchasing the project, send requirements so Muhammad can start the project.
Delivery time starts when Muhammad receives requirements from you.
Muhammad works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery
Confirm endpoints, data contracts, success metrics.
Plan & Schema
DB model, API spec, and milestone plan.