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I will develop a custom full stack web application
Elvis Manuel
About this gig
I develop modern, scalable, and custom full stack web applications tailored to your business needs.
I work with React, TypeScript, JavaScript, Node.js, Express, PostgreSQL, Prisma, REST APIs, databases, authentication, user roles, dashboards, and third-party integrations.
I can build applications from scratch, add features to existing projects, fix bugs, improve performance, integrate APIs, and modernize existing systems.
I also use advanced AI-assisted development tools to accelerate coding, debugging, testing, code analysis, documentation, and problem-solving. Every implementation is reviewed and validated by me to ensure quality, security, maintainability, and clean architecture.
My experience includes ERP, POS, invoicing, inventory, financial and administrative systems.
You can expect clean code, responsive interfaces, secure backend development, database integration, organized delivery, and clear communication.
For large ERP, CRM, SaaS, POS, or custom enterprise systems, please contact me before ordering to discuss the requirements.
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 Elvis Manuel
Elvis Manuel
Full Stack Developer Web Applications y Business Systems
- FromDominican Republic
- Member sinceSep 2026
Languages
Spanish, English
I am a Full Stack developer specializing in web applications and enterprise systems. I work with React, TypeScript, JavaScript, Node.js, Express, PostgreSQL, and Prisma. I have experience developing ERP, POS, invoicing, inventory, sales, and finance systems, as well as dashboards, APIs, authentication, and integrations. I can build projects from scratch, add features, fix bugs, and optimize or modernize existing systems. I use AI as a supporting tool to accelerate development while always ensuring code review and quality.
My Portfolio
FAQ
Can you build a complete web application from scratch?
Yes. I can develop the frontend, backend, database, REST APIs, authentication and other features required for a complete web application.
What technologies do you work with?
My main stack includes React, TypeScript, JavaScript, Node.js, Express, PostgreSQL and Prisma. I can also integrate third-party APIs and services.
Do you use AI in your development workflow?
Yes. I use advanced AI-assisted development tools for coding, debugging, testing, analysis and documentation. All generated or assisted work is reviewed and validated by me before delivery.
Can you work on an existing project?
Yes. I can analyze an existing codebase, fix bugs, add new features, integrate APIs, optimize performance and modernize parts of the application.
Can you develop ERP, CRM, POS or SaaS systems?
Yes. I have experience developing complex business systems. Large projects require a custom scope, architecture, timeline and quotation, so please contact me before ordering.
Does the package price include a complete ERP or SaaS platform?
No. The listed packages cover projects within their defined scope. Large or complex platforms require a custom offer based on the requirements.
Will I receive the source code?
Yes. The source code developed specifically for your project can be included upon completion, according to the agreed project scope.
