Freelancer profile translated to English.

Description

Need a professional website ready in 48 hours? I develop web applications and SaaS platforms from start to finish: from the landing page to the payment system, including databases, APIs, and admin panels.

My stack: Next.js, React, Node.js, PostgreSQL, Supabase, Stripe, Vercel. Everything you need to launch your digital project without relying on multiple providers.

What I can do for you:

- Landing pages and corporate websites (delivery in 24-48h)

- E-commerce and payment systems integrated with Stripe

- Complete SaaS platforms with authentication, dashboard, and billing

- AI process automation (chatbots, content generation)

- API and external service integration

- Electronic invoicing (VeriFactu/TicketBAI)

Telecommunications Engineer (UCLA) with Executive MBA (IESE). 20+ years managing companies and technical projects. Now I build digital products: 3 platforms in production with thousands of users.

Fixed price before starting. No surprises.

Languages

Spanish
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Valencia (up to 50km)

Sofyer
CEO & Full-Stack Developer
January 2025 - Today (1 year and 7 months)
Valencia, Spain
Web and application development for companies and startups. Creation of landing pages, corporate websites, SaaS platforms, and e-commerce with delivery in 24-48 hours. AI integration: WhatsApp chatbots, process automation with n8n, virtual receptionists. Stack: Next.js, React, Node.js, PostgreSQL, Supabase, Stripe. Also creator of Omyguide (96 interactive travel guides, 12 countries, 6 languages) and Regentio (appointment management software with electronic invoicing).
Next.js Supabase Node.js Typescript Vercel
T.E.M.
CEO & Founder
TRANSPORTATION
April 2016 - January 2020 (3 years and 9 months)
Madrid, Spain
General management of a chauffeur-driven passenger transport company (Uber and Cabify platforms). Fleet management of 7 vehicles and 25 employees. Technological integration with B2B and B2C digital platforms.
Operations Management Digital Transformation Human Resources Management Business Development Customer Service and Effective Communication
Ilunion Reciclados
General Manager
ENVIRONMENTAL
February 2006 - March 2016 (10 years and 1 month)
La Bañeza, Spain
Creation, launch, and market positioning in Spain of an industrial company. Integral management of initial investment of €10M, creation of 90 jobs, positive EBITDA from the first year. Achievement of 7 quality certifications among others, ISO 9001, ISO 14001, and EFQM 400+. Creation of innovative business lines.
Project Management Leadership of Multidisciplinary Teams Budget Management Quality Control Business Strategy

Cristian

Desarrollador web y apps full stack - TR1 - TRAINING ROOM MADRID 1

Reviewed on 5/2/2026

The service provided by Carlos, both before, during, and after, has been a 10. Impeccable professional. Willing and approachable with exemplary reports and communication. We were able to tailor each point of the project to our needs and objectives. A pleasure to work with professionals like him.

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

Baptiste Duhen

Fullstack developer

4.6

(4)

Amed Hamou

Senior Lead Developer

(2)

Audrey Champion

Web developer

4.3

(3)

Signup to reveal

Bachelor of Science in Electrical Engineering
University of California at Los Angeles
2000
EMBA
IESE Business School
2014
Executive Master en Administracion de Empresas

Web Designer

Carlos Gutiérrez García

Full-Stack Web & App Developer

About Carlos

Experience

Reviews

5.0

Quality

5.0

Deadline

5.0

Communication

5.0

Cristian

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