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Ruben Dario L.Status: Offline
Ruben Dario L.
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Let a pro handle the details

Buy Web Application Programming services from Ruben Dario, priced and ready to go.
Ruben Dario L.Status: Offline
Ruben Dario L.
Preview imagePreview imagePreview imagePreview image

Let a pro handle the details

Buy Web Application Programming services from Ruben Dario, priced and ready to go.

Project details

Get your React, Next.js, Node.js or TypeScript application fixed by an experienced full-stack developer.

I specialize in diagnosing and resolving complex bugs, performance issues, API integration problems, build failures, deployment errors, and unexpected application behavior.

Every project starts with a structured technical analysis to identify the root cause instead of applying temporary fixes. My goal is to deliver clean, maintainable, and production-ready solutions.

I can help with:

• React & Next.js bugs
• Node.js & Express backend issues
• TypeScript errors
• REST API integration
• Database problems
• Authentication issues
• Build & deployment failures
• Performance optimization
• Production debugging
• Code refactoring

During the project I will:

✓ Analyze the problem

✓ Reproduce the issue

✓ Identify the root cause

✓ Implement a reliable solution

✓ Test the fix

✓ Deliver documented results

Communication is clear throughout the entire process, and I focus on delivering reliable, high-quality work rather than temporary patches.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$300
Standard
$800
Advanced
$2,000
Delivery Time 7 days 14 days 30 days
Number of Revisions
24Unlimited
Number of Pages
51225
Design Customization
Content Upload
Responsive Design
-
Source Code
-
-
Optional add-ons You can add these on the next page.
Fast Delivery
+$75 - $300
Additional Revision
+$50

Frequently asked questions

Ruben Dario L.Status: Offline

About Ruben Dario

Ruben Dario L.Status: Offline
Full Stack Developer | SaaS | React | Node.js | APIs | PostgreSQL
Formosa, Argentina - 7:07 pm local time
I'm a Full Stack Software Engineer specializing in modern SaaS applications, custom CRM systems, APIs, and scalable web platforms.

I help startups and businesses build reliable software using modern technologies including React, TypeScript, Node.js, NestJS, PostgreSQL, Prisma ORM, Docker, and cloud-based architectures.

My services include:

• Full Stack Web Development
• Custom CRM Development
• SaaS Application Development
• REST API Development & Integration
• Bug Fixing & Performance Optimization
• Database Design (PostgreSQL)
• Dashboard & Admin Panel Development
• AI-powered Business Applications
• System Architecture & Consulting

I focus on writing clean, maintainable, and scalable code while keeping communication clear throughout the project.

Whether you need to fix an existing application, build a new SaaS product, or improve your current platform, I can help deliver a reliable solution.

Let's build something great together.

Steps for completing your project

After purchasing the project, send requirements so Ruben Dario can start the project.

Delivery time starts when Ruben Dario receives requirements from you.

Ruben Dario works on your project following the steps below.

Revisions may occur after the delivery date.

Technical Analysis

Review the project requirements, analyze the issue, inspect the codebase, and identify the root cause.

Development & Testing

Implement the solution, verify functionality, test all affected components, and optimize the final implementation.

Review the work, release payment, and leave feedback to Ruben Dario.