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María M.MM

María M.

Full Stack Developer

€250/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About María

👋 I'm Maria, a full stack developer with over 5 years of experience designing and maintaining efficient, scalable digital solutions focused on process automation.

I have worked in corporate environments for companies like Telefónica Tech and Getronics, developing robust APIs with Node.js and NestJS, modernizing frontends with React and AngularJS, and optimizing environments with Docker, CI/CD (GitLab, Jenkins), and Oracle and MongoDB databases.

Currently, I help companies, entrepreneurs, and professionals to:
Automate repetitive tasks with Zapier, Apps Script, or code (Python, JavaScript)
Extract structured data through legal and efficient scraping (Idealista, Amazon, Wallapop…)
Create intelligent dashboards connected to their data (Google Sheets, Airtable, APIs)
Develop bots or microservices that optimize decision-making

I connect the technical world with practical and understandable solutions, always focused on delivering real value in the short term.

If you have a manual workflow that wastes your time or need a technical project with a long-term vision, I'd be happy to help.
  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Getronics
    Senior Full Stack Developer
    January 2025 - Today (1 year and 5 months)
    Madrid, Spain
    • Development and maintenance of corporate management and processing applications.
    • Modernization of legacy interfaces (AngularJS) and updating of obsolete libraries.
    • Automation of deployments with GitLab CI/CD and support for Jenkins.
    • Production error management and maintenance of Oracle procedures.
    • Use of GitFlow with issue management and merge requests in GitLab.
    Technologies used:
    ◦ AngularJS
    ◦ Node.js
    ◦ NestJS
    ◦ React
    ◦ Oracle Database
    ◦ GitLab CI/CD
    ◦ Jenkins
    ◦ Subversion
  • Telefónica Tech
    Full Stack Developer
    October 2021 - December 2024 (3 years and 2 months)
    Madrid, Spain
    • Responsible for the design, development, and maintenance of technological solutions aimed at optimizing the operational and strategic processes of corporate intervention professionals.
    • Development of interactive and reactive interfaces with React to improve user experience in intensive use environments.
    • Construction of scalable and secure RESTful APIs with ExpressJS and NestJS, integrated with MongoDB databases using Mongoose.
    • Coordination of asynchronous workflows and decoupled services using message queues with RabbitMQ.
    • Containerization of services with Docker, optimizing development, testing, and deployment environments.
    • Participation in code reviews, automated tests, and version control in collaborative environments with Git.
    • Close collaboration with multidisciplinary teams (business, QA, DevOps) in agile environments.
    Technologies React ExpressJS Mongoose Docker RabbitMQ NestJS JavaScript Typescript
    • Java Python
    • SQL
    • MongoDB
  • Novanotio
    Full Stack Developer
    February 2020 - October 2021 (1 year and 8 months)
    Madrid, Spain
    • Responsible for the design, development, and maintenance of digital tools that enhance efficiency in the analysis and control of processes for internal audit teams.
    Technologies used:
    • Java
    • SQL (SQL Server)
    • Node js
    • React
    • MongoDB

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Education

  • Higher Technician in Development
    IES Saladillo
    2019
    Técnica Superior en Desarrollo de
  • MongoDB Course
    Udemy
    2020
    Curso de MongoDB

Skill set

Categories