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Fiverr Pro
English
$
USD
I will do senior full stack development, saas, web apps, mobile apps, ai automation
Zain Ali
5.0
5.0
About this gig
Are you looking for a Senior Full Stack Developer to build, improve, or scale your web application, SaaS platform, mobile app, or AI-powered solution?
I am a Full Stack Software Engineer with 5+ years of experience delivering 100+ projects for clients worldwide. I build secure, scalable, and production-ready applications from frontend to backend, database, APIs, AI integrations, and deployment.
My services include:
Full Stack Web Application Development
SaaS & MVP Development
React.js, Next.js & TypeScript Development
Node.js, Express.js, Python & FastAPI Backend
PostgreSQL, MongoDB & Supabase
REST API & Third-Party API Integration
OpenAI API, AI Chatbots & AI Automation
Authentication, Payments & Webhooks
Bug Fixing, Debugging & Performance Optimization
Responsive Frontend & Backend Development
Deployment & Existing Application Customization
Why work with me?
5+ years of professional development experience
100+ projects delivered
Clean, secure & scalable code
Clear communication & reliable support
Please message me before ordering for complex SaaS, AI, mobile, or custom development projects so I can review your requirements.
Get to know Zain Ali
Zain Ali
Senior Full Stack Engineer, AI and SaaS Developer
- FromPakistan
- Member sinceJun 2023
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Urdu, Punjabi, Arabic
I'm Zain Ali, a Senior Full-Stack Software Engineer with 5+ years of experience and 100+ projects delivered worldwide. I build SaaS platforms, AI-powered apps, marketplaces and automation systems using React, Next.js, Node.js, TypeScript, Python, PostgreSQL, MongoDB and Supabase. I also work with OpenAI APIs, LLM integrations, AI chatbots, REST APIs, payment gateways, webhooks, authentication, AWS and Docker. From architecture and development to deployment, I build secure, scalable solutions ready for real-world use and built around your business needs, with quality and long-term reliability.
My Portfolio
FAQ
What type of applications can you develop?
I can develop SaaS platforms, custom web applications, MVPs, dashboards, marketplaces, AI-powered applications, APIs, admin panels, and mobile app backends based on your requirements.
Which technologies do you work with?
I work with React.js, Next.js, TypeScript, Node.js, Express.js, Python, FastAPI, PostgreSQL, MongoDB, Supabase, REST APIs, OpenAI API, and modern cloud technologies.
Can you integrate AI chatbots and automation?
Yes. I can integrate OpenAI APIs, AI chatbots, LLM-powered features, intelligent workflows, third-party APIs, and custom AI automation into new or existing applications.
Can you work on an existing project or fix bugs?
Yes. I can review existing code, fix bugs, develop new features, integrate APIs, optimize performance, improve databases, and upgrade frontend or backend functionality.
Should I contact you before placing an order?
Yes, especially for SaaS, AI, mobile apps, or larger full stack projects. Please message me with your requirements so I can review the scope and recommend the right package or custom offer.
Reviews
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J josegaspar
Spain
Ongoing collaborationwe are working on a 3 phase EA development project. Happy to take delivery of 1st phase. Lets go on!
$100-$200
Price
8 days
Duration
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Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J josegaspar
Spain
Ongoing collaborationwe are working on a 3 phase EA development project. Happy to take delivery of 1st phase. Lets go on!
$100-$200
Price
8 days
Duration
U Seller's Response
Helpful?
