Abdus Sami

I build secure REST APIs, PostgreSQL data models, and cloud-native backend systems from schema to deployment.

Cloud Native Backend Engineer working with Django & DRF on Docker, AWS & DigitalOcean.

Projects

Selected Work

Selected Work01 / 03
E-commerce backend architecture: NGINX and Gunicorn fronting a Django REST API with auth, products, cart, and orders services
E-commerce backend architecture: NGINX and Gunicorn fronting a Django REST API with auth, products, cart, and orders services

Production-Ready E-Commerce Backend

Scalable REST API Platform

JWT + RBAC auth · Dockerized · deployed on AWS EC2

Developed scalable REST APIs for authentication, products, carts, and orders using Django REST Framework. Secured the platform with JWT authentication and role-based access control, backed by a normalized PostgreSQL schema. Containerized the service with Docker and served it through Gunicorn behind NGINX on AWS EC2 for a production-ready deployment.

  • JWT authentication with role-based access control (RBAC)
  • Products, carts, and orders exposed through clean REST APIs
  • Containerized with Docker, served via Gunicorn + NGINX on AWS EC2
  • REST API
  • Django REST Framework
  • AWS
Fundraising system architecture: web client connected to a Django REST API, campaigns/donations/users services, and PostgreSQL
Fundraising system architecture: web client connected to a Django REST API, campaigns/donations/users services, and PostgreSQL

Fundraising Management System

Full-Stack Donation Platform

Payment integration · production deploy · US client

Built a full-stack fundraising application with payment integration for a US client. Owned the backend architecture and REST API development end to end, designing a relational PostgreSQL schema for campaigns, donations, and users. Delivered a secure payment flow and handled production deployment on AWS EC2.

  • Backend architecture and REST API development end to end
  • PostgreSQL relational schema for campaigns, donations, and users
  • Secure payment integration and production deployment for a US client
  • Backend Architecture
  • Payments
  • PostgreSQL
CMS architecture: Django REST Framework content, pages, and media services behind secure REST APIs with role-based access and PostgreSQL
CMS architecture: Django REST Framework content, pages, and media services behind secure REST APIs with role-based access and PostgreSQL

Greenery Institute CMS

Production Content Management System

Secure REST APIs · Dockerized · DigitalOcean hosting

Developed a production-ready Content Management System using Django REST Framework. Built secure REST APIs with PostgreSQL integration, then containerized the stack with Docker and served it through Gunicorn behind NGINX. Deployed and administered the application on a Linux server hosted on DigitalOcean.

  • Secure REST APIs backed by PostgreSQL integration
  • Containerized with Docker, served by Gunicorn + NGINX
  • Deployed and administered on Linux via DigitalOcean hosting
  • CMS
  • Django REST Framework
  • DevOps

Have a backend or API project in mind?

02 / In Progresslive pipelines

Currently building

Activenode_00

Advanced System Design & Scalability

[STUDY][MODEL][PROTOTYPE][BENCHMARK][APPLY]

Deepening distributed systems fundamentals - caching, load balancing, and horizontal scaling patterns for high-throughput backend services.

System DesignScalabilityBackend
In Progressnode_01

CI/CD & Deployment Automation

[PLAN][BUILD][TEST][DEPLOY][MONITOR]

Building automated deployment pipelines with Docker Compose and GitHub Actions to ship Django services to Linux and cloud servers reliably.

DockerCI/CDDevOps
03 / Skillsdrag to interact

The stack

Technologies and frameworks I use to engineer robust, scalable systems.

04 / Profile

About me

I'm a backend developer specializing in Python, Django, Django REST Framework, and PostgreSQL, with practical experience building production-ready backend systems that solve real problems.

As a freelance backend developer, I build secure REST APIs with JWT authentication and role-based access control, design relational PostgreSQL databases, and deploy applications on Linux servers using Docker, Gunicorn, and NGINX.

BSc in Computer Science & Engineering, Daffodil International University (CGPA 3.80). I enjoy building scalable backend architectures and clean APIs following industry best practices.

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Get In Touch

I'm available for backend engineering roles and freelance projects, building secure, scalable APIs and cloud-native systems. Whether you have a question, a project idea, or just want to connect, my inbox is open.