I will build full stack web apps, ai chatbots and automation agents


About this gig
I'm a full-stack developer specializing in building custom websites, AI applications, and automation solutions using Java, Spring Boot, Python, React, Next.js, and MySQL.
Why choose me?
Full-stack custom development: No templates every line of code is tailored to your needs
AI & automation expertise: AI chatbots, AI Agents, business process automation
Clean, maintainable code: Well-structured for easy future expansion
On-time delivery: I deliver what I promise, on time
Clear communication: Fluent in both Chinese and English, transparent throughout the process
What I offer:
Full-stack website development (frontend + backend + database)
AI chatbot and AI Agent development
RESTful API design and development
Third-party service integrations (payment, email, storage, etc.)
Performance optimization and hosting deployment
Before ordering, please prepare:
Page structure and content copy
Design references or brand style guide (if any)
Feature requirement list
I'll respond to your messages within 24 hours. Let's build something great together!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Kai
AI and Full Stack Developer
- FromChina
- Member sinceDec 2025
- Avg. response time1 hour
Languages
Chinese, English
My Portfolio
FAQ
What does "1 page" mean in your packages?
One page = one independent URL (e.g., /home, /about, /contact). Pop-ups, carousels, accordions, tab switches, or any interactive modules within the same URL are considered "features" — they do NOT count toward the page limit.
What does one revision include?
One revision covers text adjustments, image replacements, color tweaks, font size changes, and spacing fine-tuning — within the already approved page structure. It does NOT include new pages, new features, layout redesign, or UI style changes. Such requests will be quoted separately.
How do I test payment features before launch?
I will configure the payment gateway in sandbox/test mode and provide test card numbers or test accounts for your review. Once you confirm everything works, you can simply replace the test API keys with your live keys to go production-ready.
What information do you need from me to get started?
To get started, please prepare: 1) Page structure and content copy (text for each page), 2) Images and branding materials (logo, photos), 3) A clear list of features you need. The more details you provide upfront, the faster I can deliver. If anything is unclear, we can discuss before you place the
Do you provide post-delivery support?
I provide 30 days of free bug-fixing support after delivery (ensuring the website runs properly). Feature modifications or new requirements beyond that scope will be quoted separately as a new project or extra service. Long-term maintenance can also be arranged via a monthly maintenance agreement.

