Upwork • LinkedIn • My Portfolio
Experienced Full Stack Developer & Solution Architect with 16+ years of building scalable, secure, and high-performance systems.
I specialize in:
- Large enterprise booking engines
- Financial systems, digital wallets, secure APIs
- AI/LLM integrations (OpenAI, LangChain, RAG)
- Next.js + Laravel + Node microservice architecture
- DevOps, CI/CD, Docker, Kubernetes, cloud-native design
I'm passionate about crafting clean systems that generate serious business impact - backed by one of the strongest freelance profiles in the industry.
- 💼 25,000+ Upwork hours - 100% Job Success
- 🥇 Top-Rated Plus badge for 10+ years
- 🌍 Work delivered across Australia, USA, Saudi Arabia & Europe
- 🚀 Completed 44+ Projects with happy clients
- OpenAI / LangChain
- RAG pipelines
- Embedding search
- Event-driven architecture
- Webhook systems & secure integrations
Jan 2010 – Present
Freelancing | Remote | Upwork
- Full Stack Developer with over 15 years of experience in web technologies
- Boosted transaction security by 25% by developing a secure RESTful API for a digital wallet and ecommerce platform
- Created comprehensive admin portals with reporting & analytics
- Implemented critical security fixes ensuring compliance across financial operations
- Completed 25K+ Upwork hours with 100% Job Success Score, Top-Rated Plus
Jan 2015 – Jan 2020
VroomVroomVroom Pty Ltd | Australia
- Developed enterprise-grade car rental booking engine using RESTful APIs
- Built key features: airport retargeting, loyalty programs, dynamic pricing
- Integrated 20+ international suppliers, managing real-time inventory
Jan 2012 – Jan 2015
Okdoit & Moteel.com | Saudi Arabia
- Built hotel and task management applications using Ruby on Rails and Laravel
- Enabled email integration, booking systems, and workflow automation
- Participated in agile development using Scrum
Jan 2009 – Jan 2011
Bengals Solutions & Informatix Technologies | Bangladesh
- Increased efficiency by 15% by developing full-stack web applications using Zend Framework and CodeIgniter
- Improved recruitment workflow by 30% through building an enterprise-grade job portal with advanced search functions
A modern, clean, future-proof adaptation of legacy booking logic into reusable micro-modules.
Tech: Next.js 15, React Server Components, Laravel API, Redis, RAG search.
Flexible analytics module with dynamic charts, multi-level filtering, and CSV/Excel export.
A unified wrapper for OpenAI / Anthropic / custom embeddings with RAG support.
- 🥇 Laravel Certified — 2023
- 🥇 PHP Certified — 2010
- LinkedIn: https://www.linkedin.com/in/asmshaon/
- GitHub: https://github.com/asmshaon
⭐ If you like my work, feel free to star a repo or connect!