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geuxor/README.md

👋 Hi, I’m Germán

Full-Stack JavaScript Developer with a strong background in building, integrating, and operating API-driven products.
I focus on turning complex business and technical requirements into reliable, maintainable software across the full product lifecycle.


🧠 Profile

I work hands-on across frontend, backend, APIs, and integrations. My experience spans product platforms, payments, logistics, and travel tech, with a strong focus on automation, developer experience, and reducing operational friction through code.


🧩 What I Do Well

  • Build and ship backend features end-to-end
  • Design, implement, and integrate REST APIs
  • Automate manual workflows and customer integrations
  • Refactor and modernize legacy systems
  • Translate complex domain logic into clean, scalable code

💼 Experience

  • EuroAmerican Adventures – Built & owned a booking management platform – 2024

    • Built backend services and APIs for booking and availability workflows
  • WORLDSPANAPI Consultant · London, UK
    Mar. 2007 – May 2010

    • Maintained XSL transformations and EDIFACT/XML message flows for high-traffic GDS APIs
  • TRAVELPORTSolutions Engineer · Denmark
    Sep. 2014 – Nov. 2018

    • Built JavaScript and PHP integrations against Universal API (GDS) to automate customer workflows and reduce costs
  • ALTAPAYSoftware Engineer (API Platform) · Denmark
    Nov. 2021 – Nov. 2023

    • Built and evolved backend services and APIs in Node.js to streamline customer onboarding
    • Developed a customer-facing React interface supporting integrations and onboarding
  • PAACKTechnical Solutions Engineer · Spain
    Nov. 2023 – Aug. 2025

    • Built Node.js services and React tools to automate and streamline customer API integrations

🧩 Projects

P2P platform where locals share activities with travelers

  • Built backend APIs and frontend flows
  • Integrated payments (Stripe Connect), authentication, media handling
  • Designed scalable data models and services
  • Deployed and operated production environments

Stack: Node.js · Express · PostgreSQL · Sequelize · React · TypeScript · Redis · Stripe · Cloudinary


Community platform for expats

  • Developed full-stack features for content, events, and user interaction
  • Implemented authentication, authorization, and API integrations

Stack: Node.js · Express · PostgreSQL · React · Redux


Book discovery and wishlist application

  • Refactored legacy JavaScript codebase to TypeScript
  • Added unit, integration, and end-to-end tests

Stack: TypeScript · React · Express · PostgreSQL · Jest · Testing Library


Adventure activities platform

  • Built and maintained full-stack Ruby on Rails application
  • Integrated payments, search, authentication, and geolocation

Stack: Ruby · Rails · PostgreSQL · Stripe · Elasticsearch · Sass


Platform to help teachers build websites quickly

  • Developed full-stack Rails features
  • Implemented authentication, authorization, and content workflows

Stack: Ruby · Rails · PostgreSQL · Stripe · Devise · Pundit · Capybara


🛠 My Tech Stack

Stack


📊 GitHub Stats

German's GitHub stats


📫 Contact

LinkedIn

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  1. colonyal colonyal Public

    A React App that encourages expats to get together as a community while sharing events, news, activities, and much more.

    JavaScript

  2. RafaelFernandez/wildflowerxp RafaelFernandez/wildflowerxp Public

    Ruby 2

  3. RafaelFernandez/wslt RafaelFernandez/wslt Public

    Ruby 1

  4. readit readit Public

    A platform to fetch books from the Google Api and save them in a personal wishlist.

    JavaScript

  5. localife-backend localife-backend Public

    A P2P platform using JavaScript Frameworks, relational databases and a Payment Gateway. Localife is targeted to encourage travellers to live memorable moments with locals in their everyday lives.

    JavaScript

  6. localife-frontend localife-frontend Public

    A P2P platform using JavaScript Frameworks, relational databases and a Payment Gateway. Localife is targeted to encourage travellers to live memorable moments with locals in their everyday lives.

    TypeScript