I will create website, web app development, saas developer, API as full stack developer


Level 2
About this gig
Need a full stack developer to build your SaaS platform, REST API, or AI-powered web app?
With 8+ years of experience and 130+ projects delivered, I build secure, scalable digital products that convert.
What I Deliver:
Full Stack Web & SaaS Development Custom apps using Java, Spring Boot & Angular. Multi-tenant SaaS, business logic & payments (Stripe, Paddle, PayPal).
API & Backend Development RESTful API design, microservices, third-party integrations & database optimization (PostgreSQL/SQL).
AI Integration & Automation OpenAI/ChatGPT API integration, custom AI chatbots, NLP features, voice systems & workflow automation.
Performance Optimization PageSpeed, Core Web Vitals tuning & scalable infrastructure.
Why Choose Me?
130+ projects delivered globally Enterprise-grade architecture Clean, documented & maintainable code Fast communication & on-time delivery
Whether you need a SaaS MVP, custom API, or AI automation I architect and deliver solutions that scale.
Message me now to discuss your project!
Get to know Ihsaan Khan
8 yrs experience in website, SaaS platforms, REST APIs, and AI automation
Level 2
- FromPakistan
- Member sinceMay 2020
- Avg. response time1 hour
- Last delivery1 month
Languages
English, German, Arabic, Dutch, French, Hebrew, Italian, Spanish
My Portfolio
FAQ
Can I place order without discussing the requirements/idea/project?
No, I would prefer to use the "Contact Me" button & discuss your complete requirements, budget, and timeline in the chat first. Once I understood your requirements then, you should place the order. It will save time & avoid order cancellation.
What technologies do you use for full stack web development?
I use Java, Spring Boot for backend and Angular for frontend. For databases, I work with PostgreSQL and SQL. I also integrate Stripe, Paddle, and PayPal for payment processing.
Can you build a custom SaaS platform from scratch?
Yes, I specialize in multi-tenant SaaS architecture with subscription billing, role-based access, dashboards, and scalable backend infrastructure using microservices.
Do you develop custom REST APIs and microservices?
Absolutely. I design high-traffic RESTful APIs, microservices architecture, and third-party API integrations with proper documentation and error handling.
Can you integrate OpenAI or ChatGPT API into my web app?
Yes, I integrate OpenAI/ChatGPT APIs for custom AI chatbots, NLP features, AI-powered recommendation engines, voice systems, and intelligent workflow automation.
Do you offer website performance optimization?
Yes, I optimize PageSpeed scores, Core Web Vitals, server response times, and overall application performance for faster load times and better SEO rankings.
Will I get clean, documented code with my project?
Every project includes clean, well-documented, and maintainable code following industry best practices. I also provide deployment support and post-delivery assistance.
How do you handle project communication and delivery?
I maintain fast communication throughout the project, provide regular progress updates, and guarantee on-time delivery. I discuss your full requirements before starting.
Can you work on an existing web application or codebase?
Yes, I work with existing Java, Spring Boot, and Angular projects for bug fixes, feature additions, API development, performance optimization, and code refactoring.
103 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
K kingxviolence
Repeat Client

United States
Amazing work as always! Exactly what I hoped for and more.
$400-$600
Price
3 weeks
Duration
Helpful?K kingxviolence
Repeat Client

United States
Great to work with as always. Will continue working with him going forward!
$200-$400
Price
2 months
Duration
Helpful?M 
mikevick1

United States
great guy fast turnaround
Up to $50
Price
1 day
Duration
Helpful?K kingxviolence
Repeat Client

United States
Great to work with as always.
$200-$400
Price
5 weeks
Duration
Helpful?D 
drami80

Montenegro
Great person and developer. Be free work with this man. 5+
Up to $50
Price
2 days
Duration
Helpful?
103 reviews for this Gig
| (102) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
K kingxviolence
Repeat Client

United States
Amazing work as always! Exactly what I hoped for and more.
$400-$600
Price
3 weeks
Duration
Helpful?K kingxviolence
Repeat Client

United States
Great to work with as always. Will continue working with him going forward!
$200-$400
Price
2 months
Duration
Helpful?M 
mikevick1

United States
great guy fast turnaround
Up to $50
Price
1 day
Duration
Helpful?K kingxviolence
Repeat Client

United States
Great to work with as always.
$200-$400
Price
5 weeks
Duration
Helpful?D 
drami80

Montenegro
Great person and developer. Be free work with this man. 5+
Up to $50
Price
2 days
Duration
Helpful?

