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Backend and DevOps: Node and Python services, Docker, CI/CD, and production ops. Scoped freelance on Fiverr for servers, deploys, and APIs.
class BackendDeveloper {
name = 'SAJIB';
focus = 'Scalability';
stack = ['Node.js', 'Python'];
freelance = 'Fiverr';
apis = ['FastAPI', 'NestJS'];
devops = ['Docker', 'CI/CD'];
}
I build scalable, production-minded backends with Node.js and NestJS, plus Python and FastAPI when the problem fits. TypeScript ties it together: clear contracts, safer refactors, and services that stay maintainable as they grow.
I design and live with the data layer (PostgreSQL, MongoDB, Redis) and ship REST APIs that stay predictable under load. Real-time channels, background queues, and AI-assisted workflows sit on that foundation when the product needs them.
Large systems often mean microservices: bounded contexts, clear service boundaries, and integrations that do not turn into spaghetti. I am used to multi-repo or modular monolith setups and shipping features without losing operational clarity.
I have shipped frontend work in the past and still read UI code comfortably, useful for API shape, pagination, and edge cases. My focus now is backend and operations; I stay aligned with product and design without owning the UI layer. I am on Fiverr as well: packaged gigs for Linux servers, deploys, and backend APIs when a clear scope and handoff matter.
I take features to production: Docker images, CI/CD (including GitHub Actions), and AWS where it belongs. On the host (PM2 for Node, Nginx or Caddy in front, Linux as the default), I care that deploys are repeatable and easy to reason about when something breaks.
My professional progression through backend engineering, system architecture, and technical leadership.
I focus on backend systems and getting them to production reliably. Here's a snapshot of the stack I use most, especially APIs, data, and delivery.
A collection of my recent backend tools, infrastructure templates, and full-stack experiments. Need something built or deployed? I also take scoped work on Fiverr. See Contact.
Email works great for a direct line. Prefer a scoped gig? I'm on Fiverr for DevOps and backend API work. Profile and gigs are below. I'm always open to a thoughtful message either way.
Send me a message for collaborations, inquiries, or just a friendly chat. I typically respond within 24 hours.
Freelance
DevOps and backend API gigs: server setup, deploys, CI/CD, and production-ready APIs. View my profile or open a specific service below.
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Insights on backend architecture, API design, and modern web development.