I will be your full stack developer for website webapps code no code ai mvp apps pwa


About this gig
Need a reliable full stack developer to build, fix, or improve your web application?
I can help you develop modern, scalable, and responsive web applications from frontend to backend.
Whether you need a complete application built from scratch, an existing website fixed, API integration, database setup, or new features added, I can help.
My full stack development services include:
- Frontend development and responsive UI
- Backend development and server-side functionality
- REST API development and integration
- Database design, setup, and optimization
- User authentication and authorization
- Admin dashboards and management systems
- LLM integrations (OpenAI, Anthropic, open-source models)
- AI agents, automated workflows, custom chatbots
- RAG pipelines with vector databases
- Full-stack apps (React/Next.js frontend, Node.js/Python backend)
- Scalable databases (PostgreSQL, MongoDB) for high-traffic systems
- Real-time architecture (WebSockets) for live data, dashboards, messaging
- Docker containerization and CI/CD deployment (AWS, GCP, Azure)
Let's discuss your project parameters, user requirements, and technical tech-stack compatibility
Get to know Cristy Sainti
Full stack AI engineering Backend Audit Security Deployment
- FromNigeria
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Portuguese, German
FAQ
Can you work with an existing/legacy codebase?
Yes, including refactoring monoliths into microservices or migrating to type-safe systems like TypeScript.
Will you host the application for me?
I don't host on my own servers, but I fully configure and deploy to your cloud environment (AWS, Vercel, DigitalOcean, etc.) as part of delivery.
Do you support GDPR-compliant architecture for EU clients?
Yes, available on request, particularly relevant for German and EU businesses.
Can you integrate Stripe or other payment systems?
Yes — payment gateway integration is available depending on project scope.
Do you guarantee the AI feature will work exactly as I imagine?
I build to your specification and test thoroughly; complex AI behavior sometimes needs iteration, which revisions cover.
