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Hassan M.
@hassan_069
Full Stack Developer Building and Scaling SaaS and AI Products
Pakistan
English
About me
I help startups and businesses launch SaaS and AI products from idea to production, and turn messy codebases into maintainable systems.
Full-Stack Developer & AI Engineer, 5+ years.
✅ Launch fast — take your idea from zero to a production-ready product
✅ Untangle codebases — clean up inherited or AI-generated code, fast
✅ Fix what's broken — resolve architecture and performance issues holding you back
⚡ React, Next.js, Node.js, TypeScript
🤖 AI Integrations & Automation
💳 Stripe, Supabase, APIs
☁️ AWS, MongoDB, PostgreSQL
Message me with your project — let's build something that scales.
Skills
Hassan M.
Offline •
Average response time: 1 hour
See my services
Custom Websites
I will build your saas mvp with react nextjs nodejs and supabase
Bug Fixes
I will audit and secure your web, mobile or ai integrated application
Portfolio
Work experience
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Freelance Full Stack Developer
Fiverr • Freelance
Jul 2022 - Present • 4 yrs 3 mos
1- Design and develop scalable SaaS platforms from concept through production. 2- Build full-stack applications using React, Next.js, TypeScript, Node.js, Express, and NestJS. 3- Design and optimize PostgreSQL, MongoDB, and Supabase databases. 4- Integrate AI models, AI agents, LLM workflows, chatbots, Stripe, and third-party services. 5- Implement authentication, role-based access control, and REST APIs. 6- Deploy and maintain production applications using Vercel, AWS, and DigitalOcean.
Senior Full Stack & AI Engineer
DeveloperTag • Full-time
Jan 2025 - Aug 2026 • 1 yr 7 mos
1- Build core modules for a multi-entity e-commerce platform processing $3M+ in monthly transactions. 2- Led a road-safety reporting platform, reducing report-processing time by 60%. 3- Built a React Native app with a multi-tenant NestJS backend for a private-security SaaS platform. 4- Automated Microsoft 365 client onboarding workflows, reducing setup overhead by 85%. 5- Developed AI and LLM-powered features using Python, FastAPI, and RAG to automate workflows.
Software Engineer
Atini Studio Inc • Full-time
Feb 2021 - Sep 2023 • 2 yrs 7 mos
1- Led backend development and system architecture for scalable web applications. 2- Built full-stack applications using Node.js, TypeScript, React, Next.js, PostgreSQL, and Supabase. 3- Developed REST APIs, authentication systems, and third-party integrations. 4- Optimized application performance, database queries, and backend processes. 5- Collaborated with clients and cross-functional teams to deliver reliable technical solutions. 6- Mentored junior developers and contributed to code reviews and development practices.
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Rating Breakdown
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1-4 out of 4 Reviews
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sherad_vance
United Kingdom
Helpful?
bellaa10_
United States
Great work, easy communication and delivered exactly what I needed.
Helpful?
monica_lisa
United States
He found important security issues and delivered everything as promised. Highly recommended!
Helpful?
smith3131
United Kingdom
Great work website looks really good. Easy to work with and delivered on time.
Helpful?
