You will get a production-ready Next.js web application tailored to your business
Project details
You will get a production-ready Next.js web application built with modern best practices and clean architecture.
With 4+ years of experience building mission-critical applications for Santander Technology and enterprise SaaS platforms at Fived Solutions, I deliver code that's reliable, performant, and maintainable.
MY STACK:
• Next.js 16 (App Router, SSR/CSR/ISR, Server Components)
• React 19 with TypeScript for type-safe development
• TailwindCSS for responsive, pixel-perfect UI
• PostgreSQL/MySQL with Prisma ORM
• NextAuth.js for authentication
• Vercel deployment with CI/CD
WHAT'S INCLUDED:
• Clean, well-documented source code (GitHub repo)
• Responsive design that works on all devices
• Production deployment to Vercel
• Performance optimization (Core Web Vitals)
• Post-delivery support for bug fixes
I recently built Nous (nous-ai.vercel.app) — a complete SaaS dashboard with AI chat, knowledge graph, real-time charts, and a template marketplace — solo in under a week. That's the speed and quality you can expect.
Let's build something great together.
With 4+ years of experience building mission-critical applications for Santander Technology and enterprise SaaS platforms at Fived Solutions, I deliver code that's reliable, performant, and maintainable.
MY STACK:
• Next.js 16 (App Router, SSR/CSR/ISR, Server Components)
• React 19 with TypeScript for type-safe development
• TailwindCSS for responsive, pixel-perfect UI
• PostgreSQL/MySQL with Prisma ORM
• NextAuth.js for authentication
• Vercel deployment with CI/CD
WHAT'S INCLUDED:
• Clean, well-documented source code (GitHub repo)
• Responsive design that works on all devices
• Production deployment to Vercel
• Performance optimization (Core Web Vitals)
• Post-delivery support for bug fixes
I recently built Nous (nous-ai.vercel.app) — a complete SaaS dashboard with AI chat, knowledge graph, real-time charts, and a template marketplace — solo in under a week. That's the speed and quality you can expect.
Let's build something great together.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,200
|
Advanced
$3,000
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 20 days |
Number of Revisions | 1 | 2 | 5 |
Number of Pages | 3 | 8 | 15 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
About Tomas
Full-Stack Dev | React & Next.js | Banking & SaaS Systems | TypeScript
San Miguel, Argentina - 12:40 pm local time
WHAT I DO BEST:
• Frontend: React, Next.js (SSR/CSR/ISR), TypeScript, TailwindCSS
• Backend: Nest.js, Node.js, Express, RESTful APIs, PostgreSQL, MySQL
• Architecture: Clean architecture, SOLID principles, performance optimization
CURRENT WORK:
1. Santander Technology (2021–Present)
Mission-critical internal systems used daily by thousands of bank employees. Led migration from Golang to Nest.js without service interruption. Achieved 40-60% performance improvements across multiple projects.
2. Fived Solutions (2024–Present)
Enterprise SaaS platforms including an invoicing system with OCR-based document scanning (70% reduction in manual entry), analytical dashboards, and 3D product viewers.
3. Nous — My Own Product (2026)
Full-stack SaaS dashboard built solo: Next.js 16, Prisma + Neon PostgreSQL, AI chat with domain routing, knowledge graph, real-time Recharts, template marketplace, and export system. Live at nous-ai.vercel.app
WHY CLIENTS CHOOSE ME:
• I build products, not just features — I understand the full picture
• Banking-grade reliability: 99.9% uptime, zero-downtime migrations
• Clean, maintainable code with proper architecture from day one
• Fast delivery: shipped a complete SaaS platform (v3.0) in 3 days
Available part-time (~20 hrs/week). Fluent in English and Spanish.
Portfolio: tomas-martinez-ten.vercel.app
Steps for completing your project
After purchasing the project, send requirements so Tomas can start the project.
Delivery time starts when Tomas receives requirements from you.
Tomas works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Planning
Review requirements, define architecture, set up project structure and repository
Development & Testing
Build frontend, backend, database, and API. Test across devices and browsers