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Daniel Gimeno PellicerDG

Daniel Gimeno Pellicer

Full-Stack SaaS Developer

€350/day
Barcelona, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Daniel

I am a Full-Stack Developer specializing in SaaS applications with over 15 years of experience developing software for businesses and digital products.

I help startups, SMEs, and entrepreneurs transform ideas into functional, scalable, and production-ready web applications.

My experience covers the entire development cycle: requirements analysis, functional design, architecture, database modeling, frontend and backend development, deployment, and maintenance.

I have participated in the development of business management SaaS platforms, reservation systems, data analysis tools, and integrations with artificial intelligence. I am currently developing Pymwin, a business management platform created entirely by me.

I primarily work with Next.js, React, TypeScript, PostgreSQL, and Supabase.

I can help you with:

• Development of MVPs and SaaS products.
• Custom web applications.
• Architecture and database design.
• API and artificial intelligence integration.
• Evolution and maintenance of existing applications.
• Business process automation.

I am looking for projects where I can contribute technical expertise, product vision, and the ability to build complete end-to-end solutions.
  • Spanish

    Native or bilingual

  • Catalan

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Pymwin.com
    Founder & Full-Stack Developer
    March 2026 - Today (4 months)
    Development of Pymwin, a SaaS platform for small business management.
    Project designed and implemented entirely by me, from functional definition and data model to application development, deployment, and maintenance.
    • • Full-stack design and development using Next.js, React, TypeScript, and PostgreSQL.
    • • Database architecture and business logic.
    • • Management of clients, reservations, scheduling, services, products, and billing.
    • • Implementation of dashboards and business indicators.
    • • User experience design and continuous product evolution.
    • • Deployment and operation in production environments. Technologies: Next.js
    ◦ · React
    ◦ · TypeScript
    ◦ · PostgreSQL
    ◦ · Supabase
    ◦ · Vercel
    Next.js PostgreSQL Fullstack React.js Supabase
  • CODX
    Full-Stack Developer
    February 2026 - Today (5 months)
    Barcelona, Spain
    • • Design and development of the web application using Next.js, React, and PostgreSQL.
    • • Exploration of integrations with open banking and financial data analysis.
    • • Development of functionalities for account aggregation, financial tracking, and economic planning.
    • • Full-stack architecture and data model design.
    • • Use of generative AI tools to accelerate development and feature prototyping.
  • Leonard AI.com
    Full-Stack Engineer — SaaS - Leonard AI
    September 2023 - December 2025 (2 years and 3 months)
    Barcelona, Spain
    • • Full-stack design and development of the web application using Next.js, React, TypeScript, and Node.js.
    • • Architecture and management of PostgreSQL database (Supabase) in a multi-tenant environment.
    • • Integration of conversational AI and intelligent assistants for business support, marketing, and center management.
    • • Implementation of key modules: online reservations, service management, clients, schedules, revenue, and analytics.
    • • Deployment and production maintenance on Vercel, optimizing performance and reliability.
    • • Development of APIs and business logic for internal process automation.

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Education

  • CFGS Development of Computer Applications
    IES Escola del Treball
    2007
    CFGS Desarrollo de Aplicacion, Informática
  • Computer Systems Administration, Informatics
    Stucom CFGS
    2006
    Administración de Sistemas Informáticos, Informática

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