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About Me ✨

Maria Julieta Calbet Gonzalez avatar

Hi, I’m Julieta — a Spanish software engineer based in Copenhagen. I have a Master’s in Computer Engineering and over 11 years of experience in full‑stack and frontend development.

I started my career in Rome working with Adobe Experience Manager (AEM), and later specialized in building fast, accessible, and SEO-friendly websites using React.js, Next.js, Vite, Tailwind CSS, and shadcn/ui.

I enjoy creating clean, maintainable code and smooth user experiences, with solid knowledge of Node.js, Express, MongoDB, and MySQL for backend integrations. Outside of work, I love hiking with my family and dog, playing the tenor saxophone, and discovering new ideas (and coffees!) at local tech meetups.

I focus on progressive enhancement and performance — building delightful experiences that work across devices.

Experience

Impact across teams & industries

Novo Nordisk

Senior Frontend Developer

Jul 2024 - Present

Copenhagen, Denmark

Lead frontend delivery for NNPlanner, the Product Supply planning platform that orchestrates QC, QA, and production teams managing incoming lab samples and resources.

  • Ship NNPlanner as a React + TypeScript SPA powered by Redux, Vite, and REST APIs surfacing planner, availability, and sample data.
  • Model session data inside a ducks-inspired Redux tree for predictable context management across the scheduling experience.
  • Stream real-time events from the backend through a Socket.io middleware to keep planners in sync without page refreshes.
  • Modernize legacy CSS Modules toward Tailwind CSS while safeguarding production parity.
  • Integrate Umami analytics and extend Python APIs to expose additional planner fields for stakeholders.

DFDS

Frontend Developer

Dec 2022 - Jun 2024

Copenhagen, Denmark

Part of the CET Tribe's Content Delivery team, delivering the freight, ferries, and logistics digital experience powered by Contentful.

  • Built TypeScript/React/Next.js features that consume Contentful via GraphQL and REST.
  • Automated previews and releases via Vercel plus GitHub Actions for reliable delivery.
  • Maintained the shared monorepo with Turborepo while upgrading dependencies for the tribe.
  • Implemented Hydro 2 using Reach UI and the Stitches CSS-in-JS system.
  • Ran Playwright end-to-end and visual regression tests and migrated content between Contentful spaces.

Nuuday / YouSee

Frontend Developer

Mar 2022 - Nov 2022

Copenhagen, Denmark

Migrated Help & Selfcare properties from Sitecore to a headless Contentful stack serving both public and authenticated YouSee customers.

  • Delivered accessible, high-performance React/Next.js applications using Tailwind CSS and Material UI.
  • Modelled and authored Contentful content while keeping SEO budgets green.
  • Collaborated with designers and PMs in an agile cadence for iterative UX improvements.
  • Automated CI/CD with GitHub Actions, Jest, RTL, Storybook, Chromatic, Adobe Analytics, and Adobe Target.

Valtech

Frontend & Lead Developer

Jan 2019 - Feb 2022

Copenhagen, Denmark

Delivered enterprise web programs for Grundfos, ABB PowerGrids, and Novo Nordisk through the Valtech DK studio.

  • Implemented reusable component libraries with HTML, Sass/Less, ES6, and Vue.js while mentoring teammates.
  • Bootstrapped projects using Maven, Node.js, Webpack, and Babel for faster delivery.
  • Maintained CI/CD via Jenkins, Bitbucket, and Git workflows.
  • Improved performance with code splitting/minification and rolled out SEO enhancements like schema markup.

Nesea

Frontend & AEM Developer

Aug 2017 - Dec 2018

Rome, Italy

Built the new Lottomatica.it desktop portal on Adobe AEM 6.3, spanning both frontend and backend customizations.

  • Delivered AngularJS, HTML5, and CSS3 components that mirrored designer specs while remaining responsive.
  • Extended AEM components and dialogs so editors could compose flexible layouts.
  • Collaborated across Java/JSP backend and frontend layers to enable dynamic betting experiences.

New Energy Group

Full Stack Developer

Mar 2014 - Aug 2017

Rome, Italy

Launched my career implementing Adobe CQ/AEM solutions for Sky Italia, Prada (Miu Miu), and Enel across multiple regions.

  • Developed CQ components using HTML, CSS, JavaScript, Java, JSP, and web services for multilingual deployments.
  • Automated translation workflows and asset renditions to support global sites.
  • Extended ExtJS/Granite widgets, customized Targeting/ContextHub, and implemented personalization flows.

Skills

Full-stack craft & enablement

Frontend & UI Engineering

React.jsNext.jsGatsbyJSViteVue.jsAngularJSBackbone.jstrpcTypeScriptJavaScriptHTMLHTML5CSSCSS3Cascading Style Sheets (CSS)Tailwind CSSSASS (language)LESSSightlyXMLUI technologiesReact QueryTanStackRedux.jsReduxZodStorybookChromaticBootstrapFoundationsMaterial-UIHeadless UI

Backend, Data & Realtime

Node.jsNestJSPrisma ORMMongoDBMySQLSQLGraphQLApollo GraphQLRESTAJAXJSONChart.jsSocket.ioSocket programmingWeb services technologies

Platforms, CMS & Delivery

Adobe Experience ManagerAdobe AEMAdobe CQ5WordpressContentfulAlfrescoOSGI AEM architectureWindowsLinuxVercelTurborepoMavennpmWebpackGitGitHubSVNVersioning (SVN & Git)JIRAEclipseSublime TextVisual Studio CodeIDEs and editorsAEM project setup (Maven / Node / npm / Webpack)

Testing & Quality

PlaywrightVitestJestReact Testing LibraryCypressUnit testing toolsJUnitMockitoStorybookChromaticCode review

Analytics, Methods & Product Skills

Agile MethodologiesScrumGoogle AnalyticsAdobe AnalyticsAnalyticsSearch engine optimization (SEO)Attention to detailProblem solvingAnalytical thinking

Languages & Foundations

PythonJavaC++HaskellLispSQLMongoDBMySQL

More

  • Skilled in Tailwind, Bootstrap, Foundations, Material-UI and Headless UI libraries for responsive and modular interface design.
  • Web Services stack: Chart.js, XML, JSON, AJAX and REST powering dashboards and integrations.
  • CMS platforms: Adobe AEM, Contentful, Adobe CQ5, Wordpress and Alfresco with deep authoring workflows.
  • Unit testing toolbox: Playwright, Vitest, Jest, React Testing Library, Cypress, Storybook and Chromatic.
  • Version control and delivery: SVN, Git/GitHub, Vercel, Turborepo, Maven, npm and Webpack.

Education & Certifications

Continuous learning & craft

Sep 2007 - Dec 2013

Master Degree in Computer Engineering

Escuela Tecnica Superior de Ingenieria Informatica, Universidad de Sevilla

Seville, Spain

Five-year engineering programme covering distributed systems, software architecture, and advanced mathematics.

Sep 2012 - Jul 2013

Erasmus Programme, Universita degli Studi dell'Aquila

Dipartimento di Ingegneria, Matematica e Scienze dell'Informazione

L'Aquila, Italy

Exchange year focused on advanced programming, mobile applications, and web engineering, plus Italian language immersion.

  • Mobile Applications
  • Programming Laboratory I & II
  • Programming Basics
  • Web Technology & Engineering
  • English Language A2
  • Italian Language & Culture A1/B1

Certification

Adobe Certified Expert - AEM Assets Developer

Adobe

Jun 2020 - Present

Denmark

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Certification

Adobe Certified Expert - AEM Sites Developer

Adobe

Dec 2020 - Present

Denmark

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Languages

Spanish

Native

Italian

Fluent

English

Fluent