Overview

We deliver reliable, scalable and high-performance backend development and server setup services tailored to your needs. WHAT WE OFFER Backend development - Modular REST APIs with Node.js & Express - Secure authentication with JWT/tokens + RBAC - MongoDB (Mongoose) schema, index and query optimization - Real-time features (Socket.io/WebSocket) - File uploads and CDN/cloud storage (Cloudinary/S3) - Postman/Swagger documentation, optional Jest tests DevOps / go-live - Nginx (1.24+) reverse proxy on Ubuntu 22.04 LTS - Zero-downtime deploys with PM2 (cluster mode) - Let's Encrypt SSL with automatic renewal - DNS/domain management (A/AAAA, CNAME, TXT, SPF/DKIM/DMARC) - Logging & monitoring (pm2/nginx), backups and .env management CONCRETE KPIs & SLA (targets/benchmarks) - Uptime: 99.9% SLA - API p95 response time: < 200–400 ms (Express + correct indexing) - TTFB improvement: 30–60% (Nginx cache, brotli/gzip, keep-alive) - Deploy downtime: 0 s (PM2 reload/graceful) - RPS (example 2 vCPU VPS): 1k–3k req/s on read-heavy endpoints - 5xx error rate: < 0.5% (health checks + rate limiting) - Backups: daily (7-day) + weekly (4-week) retention - SSL renewal check: automatic cron every 60 days - Cold start to live: < 5 min (optional CI/CD) SECURITY DEFAULTS - OWASP Top 10-focused review - Rate limiting: default 100 requests/min/IP (configurable) - Passwords: bcrypt 12+ rounds; JWT access 15 min / refresh 7 days - Cookies: httpOnly, secure, sameSite; domain-scoped CORS ENVIRONMENT & VERSIONS Node.js 18/20 LTS, Express, MongoDB 6/7, Nginx 1.24+, PM2 5.x, Ubuntu 22.04 LTS, Postman/Swagger, Git/GitHub. DELIVERABLES - Source code + README/runbook - Postman collection / Swagger - Nginx + PM2 configurations, SSL/DNS records - Short-term support (Q&A / minor fixes) If you want an end-to-end, measurable solution for backend development or a production launch with Nginx + PM2 + DNS + SSL, let's bring your project live together.