m
martinez_devs

Victor Martinez

@martinez_devs

FullStack Web Developer, React, SaaS Dashboards, AI Integrations

Spain
Spanish, English
About me
👋 Hi! I'm Víctor, a full-stack web developer from Spain. I build modern, responsive websites and SaaS dashboards using React, Node.js and clean code — not templates. My latest project, Markulia, is a SaaS platform I built end-to-end: React frontend, custom Node.js API, real-time quota system, admin panel, Stripe billing and VPS deployment. 🛠️ Stack: React · Node.js · REST APIs · Stripe · Tailwind · OpenAI/Claude APIs I also integrate AI into web apps: chatbots, automations, LLM features. ✅ Clear communication · On-time delivery · Revisions included... Read more

Skills

m
martinez_devs
Victor Martinez
Offline • 

See my services

Custom Websites
I will design and develop a modern react landing page that converts
From$95 / projectMore details
Custom Websites
I will build a custom saas dashboard or admin panel in react
From$280 / projectMore details

Portfolio

Work experience

Freelance_Web Designer

Freelance Web Designer

Freelance • 1 yr

Full-Stack Web Developer (Intern)

Nov 2025 - Present • 6 mos

During my internship I worked as Full-Stack Developer on Markulia, a complete SaaS management platform for handling communication campaigns, phone numbers, billing and account usage from a single modern dashboard. I designed, developed and deployed the entire application end-to-end. Key responsibilities and achievements: • Built the entire frontend in React with a custom layout system, reusable UI components and a fully responsive design optimized for desktop, tablet and mobile. • Developed and integrated the backend API (Node.js / REST) handling authentication, data processing and business logic with secure client-server communication. • Implemented a complete real-time user quota system with usage tracking, limit enforcement and clear user feedback on remaining allowance. • Created a protected admin panel allowing administrators to manage users, adjust quotas and oversee platform activity and revenue. • Integrated Stripe for secure payments: balance management, top-ups and usage-based packages — fully self-service for end users. • Integrated Twilio for instant phone number provisioning (Local / Mobile / Toll-free) across multiple countries. • Configured and maintained the production deployment on a VPS, including build pipeline, backend process management and zero-downtime restarts. • Maintained an automated changelog and structured release process, keeping every feature and fix documented. I handled the complete development lifecycle — from requirements and architecture to coding, testing, deployment and ongoing maintenance — while keeping clear and consistent communication. The platform is in production serving real users.

Freelance Web Developer

Nov 2025 - Present • 6 mos

Freelance web developer building modern, responsive websites and custom web applications for small businesses and entrepreneurs. Services: • Landing pages and corporate websites (React + Tailwind) • Custom SaaS dashboards and admin panels • AI integrations: chatbots, automations, OpenAI / Claude API features • Maintenance and improvements for existing websites 🛠️ Stack: React · JavaScript · Node.js · REST APIs · Stripe · Tailwind · VPS / Linux · OpenAI / Claude APIs · Git I handle the full project lifecycle: requirements, design, development, deployment and maintenance. Clear communication, fixed pricing, on-time delivery.