Open for new backend and DevOps projects

Nahid Hasan

Backend EngineerDevOpsCloud

I build scalable backend systems, cloud infrastructure solutions that help teams move faster.

Working with

  • TypeScript
  • Node.js
  • NestJS
  • FastAPI
  • PostgreSQL
  • Prisma
  • Docker
  • GitHub Actions
  • Linux
  • Stripe
Portrait of Nahid Hasan
About

A backend engineer who builds production-ready systems

Production REST APIs and the infrastructure around them, built to stay reliable long after launch.

I'm a backend engineer who builds production REST APIs and the infrastructure around them — from schema design to deployment. My day-to-day stack is Node.js, NestJS, and Express.js on the JavaScript side, and Python with FastAPI on the other, backed by PostgreSQL and Prisma.

I care about getting the boring parts right: clean authentication and access control, database integrity, automated test coverage, and APIs that are actually documented, not just working. Recently I've been building a two-sided marketplace platform (Tradeeaze) from the ground up — auth, discovery, billing, and a full security pass across the API — and before that, a multi-role CRM backend (Armorix) serving admins, dealers, and installers on one system.

  • Production REST APIs, documented and tested
  • Clean authentication and access control
  • Database integrity with PostgreSQL and Prisma
  • Repeatable deployments with Docker and Kubernetes

3+

Years Experience

20+

Projects Built

10+

Technologies

24/7

Learning Mindset

How I work

I'm comfortable owning a backend independently on a freelance basis, and equally comfortable working inside a larger codebase with other contributors and clear module boundaries.

Skills

Technologies I work with

Tools and systems I rely on to build reliable, production-grade backend infrastructure.

Languages

Day-to-day code

05
  • TypeScript
  • JavaScript
  • Python
  • Dart
  • SQL

Backend

APIs and services

08
  • Node.js
  • NestJS
  • Express.js
  • FastAPI
  • REST API
  • Prisma
  • SQLAlchemy
  • Swagger

Database

Storage and caching

05
  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis
  • SQLite

DevOps

Build, test and ship

08
  • Docker
  • Docker Compose
  • GitHub Actions
  • Kubernetes
  • Nginx
  • Apache
  • systemd
  • Git

Cloud & Servers

Where it runs

05
  • Linux
  • Ubuntu
  • DigitalOcean
  • AWS
  • Cloudflare

Integrations & Mobile

Payments, messaging, apps

05
  • Stripe
  • Firebase
  • Twilio
  • LLMs
  • Flutter
Experience

Where I’ve been building backend systems

Work across backend engineering, DevOps, and automation projects that need reliable production support.

  1. Backend Systems Engineer

    Independent EngineerOn-site

    2023 — Present

    Delivering backend systems, cloud deployments and automation for SaaS and technical projects.

    • Built production-ready APIs with fault-tolerant deployment pipelines.
    • Designed Kubernetes-ready infrastructure for scalable backend services.
    • Automated deployments, observability and routine operations.
    TypeScriptNode.jsNestJSFastAPIPostgreSQLPrismaDockerGitHub ActionsLinux
Projects

Selected work across backend, DevOps and automation

Systems where API design, reliable deployment, and automation had to hold up in production.

Armorix preview
BackendFeatured
2024

Armorix

A secure backend platform for asset tracking, automation, and workflow orchestration.

  • API-first architecture
  • Role-based access control
  • Containerized deployment
  • Redis performance caching
Node.jsNestJSPostgreSQLDockerRedisNginx
iChat preview
Backend
2024

iChat

A real-time messaging backend built for low-latency communication and moderation workflows.

  • WebSocket session management
  • Real-time delivery
  • Message persistence
  • Secure authentication
Node.jsSocket.IOMongoDBRedisJWT
OutSpot preview
DevOpsFeatured
2023

OutSpot

A DevOps dashboard for deployment monitoring, environment control and release automation.

  • Deployment visibility
  • Pipeline automation
  • Service health monitoring
  • Infrastructure as code readiness
DockerKubernetesGitHub ActionsCloudflareNginx
Services

What I can help you build

Backend engineering, cloud infrastructure, and automation work designed for production systems.

Backend Architecture

Design and build scalable Node.js and NestJS backends with clean APIs and reliable service behavior.

  • REST API design
  • Authentication & authorization
  • Microservice readiness

Cloud & DevOps

Deploy and operate backend systems using Docker, Kubernetes, Nginx, and cloud infrastructure patterns.

  • Container orchestration
  • Infrastructure reliability
  • Deployment automation

Database Engineering

Model and optimize relational and NoSQL systems for fast, consistent backend performance.

  • PostgreSQL tuning
  • MongoDB design
  • Redis caching
Contact

Let’s discuss your next backend project

Backend development, cloud deployment, or automation — send a short brief and I’ll reply with how I’d approach it.

Available

Open for new backend and DevOps projects

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