Full Stack | Python & FastAPI | Next.js | AI & SaaS Development

I’m Masud Hasan, a Full Stack Developer with more than 16 years of experience building custom web applications, SaaS platforms, AI-powered software, and business automation solutions.

Since joining the software development industry in 2009, I have helped entrepreneurs, growing companies, and established businesses turn their ideas into reliable digital products. Today, I work as part of a Toronto-based engineering team of more than 60 experienced specialists with a portfolio of 1,000+ completed projects for clients across the USA, UK, Canada, and Australia

My technical expertise includes Python (FastAPI & Django), Next.js, React, TypeScript, Node.js, PostgreSQL, MongoDB, AWS, Firebase, Stripe, and leading AI platforms such as OpenAI and Claude. I develop custom web applications, SaaS platforms, RESTful APIs, AI integrations, business automation solutions, interactive dashboards, and scalable backend architectures designed for long-term growth.

Before writing a single line of code, I take the time to understand the business goals and project requirements to ensure every solution delivers real value.

Why work with me?

More than 16 years of professional software development experience
Over 1,000 successfully completed client projects
End-to-end full-stack application development
Custom SaaS and AI-powered software development
REST API development and third-party integrations
Clean, scalable, well-documented, and maintainable code
Clear communication and reliable ongoing support

Whether you need a modern web application, a scalable SaaS platform, an AI-powered product, API integration, or a custom business solution, I focus on building software that solves real business challenges and creates long-term value.

I look forward to discussing your project.

Best regards,
Masud Hasan

Work Terms

Hello! This is how I approach working with my clients — smoothly, openly, and worry-free.

Always Ready for You
- Readily available every day of the week — no waiting for me to get back to you
- 10:00 AM to 8:00 PM BST; more flexible schedule for US, UK, EU, and AU customers
- Instant responses during business hours — no waiting around for replies
- Immediate priority responses on an urgent basis — even outside business hours

Up-to-date Information You Need
- Daily updates so that you know what stage your project is at
- Weekly written report with milestones, roadblocks, and next steps
- Video conferencing at any moment you feel like discussing your project
- Your questions are answered before you have time to think of them

Your Project Timeline
- Casual kick-off call for complete understanding of your ideas
- Milestones each 1-2 weeks — to see tangible progress every now and then
- Preview URL provided early on so that you watch your product evolve
- Well-documented code produced every single step of the way

Payment Protection
- Complete protection via Guru SafePay for both of us
- Milestone-based payment split to only pay for what is approved
- Either hourly rate or fixed price, whichever is better for your project

Revisions and Post-Completion Support
- Revisions as long as it takes to make you 100% satisfied
- Free bug fixes in two weeks from the date of delivery
- Continued support for ongoing collaboration on your project

What I Promise You
- Number one priority of my work is your project each day
- Open, clear and honest communication, even if it’s hard to hear
- High quality code written by your side
- Absolute ownership of the entire project
- Friendly and long-term cooperation - you’re not just a project for me