Are you looking for an experienced full-stack developer who can turn your idea into a secure, scalable, and production-ready application?

I’m a Software Engineer with 3+ years of hands-on experience developing business websites, SaaS platforms, web applications, backend systems, APIs, blockchain products, and cloud-based solutions.

My Core Technologies

Frontend

React.js
Next.js
Vite
Tailwind CSS
Responsive UI development

Backend

Java and Spring Boot
Node.js, Express.js, and NestJS
REST and GraphQL APIs
Microservices architecture
RabbitMQ, BullMQ, and Redis

Databases

MongoDB
PostgreSQL
MySQL
Database design and performance optimization

Cloud and Deployment

AWS
Docker
Render
Vercel
Hostinger
CI/CD and production deployment

Blockchain and Web3 Development

I also have experience developing and integrating blockchain-based functionality, including:

Smart contracts using Solidity
Ethereum and Polygon integrations
Web3.js and Ethers.js
Decentralized applications
ERC-20 and ERC-721 tokens
NFT platforms
Crypto wallet integrations
Blockchain APIs
Token balances and transaction tracking
Multi-chain wallet features

What I Can Deliver

Full-stack web applications
SaaS MVP development
Business and customer portals
Admin dashboards
REST and GraphQL APIs
Java Spring Boot backend systems
React and Next.js frontend development
Authentication and role-based permissions
Stripe and third-party payment integrations
WebSocket and real-time features
Google Maps and location-based functionality
Third-party API integrations
Blockchain applications and smart-contract integrations
Database architecture and optimization
Existing codebase maintenance and debugging
Cloud deployment and production support

Why Work With Me?

Full-stack development from planning to deployment
Experience working with existing and incomplete codebases
Strong debugging and problem-solving skills
Secure and scalable development practices
Clean, maintainable, and well-structured code
Clear communication and regular progress updates
Testing before final delivery
Post-deployment support and documentation

Packages

Basic – Bug Fixes and Small Features

Bug investigation and resolution
API integration or endpoint fixes
Frontend or backend improvements
Authentication and database fixes

Standard – Complete Feature or Module

Frontend and backend development
Database integration
API development
Authentication and role permissions
Testing and deployment support

Premium – End-to-End Application Development

Complete full-stack application or SaaS MVP
Frontend, backend, and database development
Third-party integrations
Cloud deployment
Blockchain or Web3 functionality where required
Testing, documentation, and launch support

Please contact me before placing an order so we can discuss your requirements, technical scope, timeline, and budget.

Let’s build a reliable, scalable, and production-ready solution for your business.

Diseño y desarrollo plantillas web

More Gigs from Yosdani García

You might also like