Python ยท DRF ยท AI Integration ยท AWS
I'm Harun Or Roshed โ a Backend Software Engineer from Dhaka, Bangladesh. I build production-grade SaaS platforms, RESTful APIs, and real-time systems that businesses actually rely on.
I'm a Python / Django Backend Engineer who graduated from Dhaka International University with a B.Sc. in Computer Science & Engineering. I joined my first company as an intern and grew into a Junior Software Engineer โ shipping 5 production systems that real businesses run on today.
Beyond code, I'm driven by solving hard problems. My thesis on Jute Disease Prediction using deep learning achieved 95.7% accuracy โ and was recognised as a meaningful contribution to Bangladesh's agricultural sector.
When I'm not building backends, I'm participating in hackathons, reading about distributed systems, or exploring new ways AI can solve real-world problems.
Scalable REST APIs and SaaS apps with clean architecture.
Schema design, query optimisation, and ORM mastery.
Live messaging and background task processing at scale.
Production deployments on AWS, VPS, and containerised environments.
OpenAI-powered features and third-party API integration.
Secure auth flows and Stripe billing with webhook handling.
Full-featured AI chatbot SaaS with multi-tenant support, Stripe subscription billing, JWT auth, and conversation history analytics. Processes large text datasets and serves context-aware responses to business customers in real-time.
AI-powered social media analytics dashboard. Fetches trending content via social APIs, runs AI insight generation, and processes large datasets through scheduled Celery jobs.
Enterprise lottery platform with RBAC user authentication, automated random winner selection algorithms, and a reliable PostgreSQL-backed transactional database design.
Comprehensive backend system for an AI-driven image generation platform combining cutting-edge AI technology with e-commerce capabilities. Users generate stunning images using AI, save creations, and order physical prints through print-on-demand integration. Features custom email authentication, advanced user lifecycle management, text-to-image generation with multiple styles, selective image editing, credit system with per-action charging, Stripe payment processing, Gelato print-on-demand pipeline, and comprehensive audit logging.
Full-stack Django application for locksmiths and key distributors featuring AI-powered key matching with FAISS vector database for sub-second identification. Includes multi-role authentication with JWT and Google OAuth, complete e-commerce workflow (order โ payment โ delivery), 20+ RESTful API endpoints with auto-generated documentation, modern admin dashboard with django-unfold. Achieves 95% key matching accuracy with 99% reduction in lookup time, scalable to 1000+ concurrent users.
I'm open to junior/mid backend engineering roles, freelance projects, and collaboration. I reply within 24 hours.