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Albert Quiñonero AyllonAQ

Albert Quiñonero Ayllon

Senior Software Developer

€290/day
Barcelona, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Albert

Looking for someone to turn your idea into a scalable, fast, and production-ready React-Node application? I can help you.

How do I help?
I design and build front-ends with React + Next.js and TypeScript that load in milliseconds and rank better on Google (SSR/ISR). On the back-end, I set up Node.js APIs on AWS or Firebase, with secure authentication and continuous deployment so your team can forget about infrastructure.

Why me?
Complete full-stack vision: a single point of contact for UI, logic, and cloud.

Clean and tested code, I reduce maintenance costs by up to 30%.

Product mindset: I don't just program; I propose UX and business improvements.

Express delivery: functional prototypes in less than two weeks.

What I usually deliver
Next.js landing pages optimized for SEO (Core Web Vitals > 90).

Real-time dashboards with React, Redux, and websockets.

Serverless SaaS MVPs (Node.js + Firebase) ready to attract investment.

Microservices on AWS Lambda with IaC infrastructure (CDK/Terraform).

Tell me what you need and let's start creating value for your business.
  • Spanish

    Native or bilingual

  • English

    Conversational

  • Catalan

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Dinbeat
    Fullstack Developer
    MEDICAL
    July 2020 - July 2021 (1 year)
    Barcelona, Spain
    Senior Full-Stack Developer expert in HTML5, CSS, JS/TS, React, Next.js, Styled-Components, Node.js, and Firebase.
  • Pevitech
    Fullstack Developer
    SOFTWARE PUBLISHING
    July 2021 - March 2023 (1 year and 8 months)
    San Quirico de Tarrasa, Spain
    Senior Full-Stack Developer expert in HTML5, CSS, JS/TS, React, Next.js, Styled-Components, Node.js, Firebase, AWS, lambdas, and Redux.

  • Algoritcom
    Fullstack Developer
    SOFTWARE PUBLISHING
    May 2022 - January 2025 (2 years and 8 months)
    Barcelona, Spain
    CTO & Senior Full-Stack Developer expert in HTML5, CSS, JS/TS, React, Next.js, Styled-Components, Node.js, Firebase, AWS, lambdas, Redux, and Threejs.

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Education

  • Full Stack Web Developer
    Ironhack
    2020

Skill set

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