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ActioGlobal®

Frontend Developer Trainee

ActioGlobal®
Spain · Full-time · Not Applicable

Who are we?

ActioGlobal is the agency that transforms leading organizations all over the world to shape the future of work. Since 2004, we partner with top leaders in their industries to disrupt organizational cultures and achieve high impact at accelerating speed, such as Pepsico, Unilever, Nestlé, Danone, Siemens, BASF, Adevinta, Canon, etc.

We don't consult.

We Change How Work Is Done.

Our clients are not looking for fluffy workshops, endless post-it notes, or trendy methodologies, they want a new way of working that delivers results. Without excuses.

The Role

Your mission is to soak up knowledge and actively contribute to modernizing our platform. Guided by our Senior Devs, youll help build modern UI using Lit and Web Components, migrating features from our legacy system to ensure a seamless, high-quality interface.

Were looking for a clean-code enthusiast eager to become an expert in modern frontend architectures.

  • Active Learning: Jump into internal training and mentoring to master our stack (Lit, Web Components, modern JS).
  • Component Development: Build reusable UI components based on UX/UI designs and team standards.
  • Legacy Migration: Support the transition from old features to our new Web Components architecture.
  • Code Quality: Write clean JavaScript (ESNext) following industry best practices.
  • Automated Testing: Learn and help create unit and integration tests for a robust frontend.
  • Documentation: Keep our component library (Storybook) up to date.
  • Bug Fixing: Identify and fix visual or logic issues under supervision.
  • Collaboration: Be an active part of dailies and refinements, bringing a fresh perspective to technical talks.


Who You Are

  • Recent graduate (Computer Science), Web Development vocational training, or a high-intensity Frontend Bootcamp.
  • Core Tech: Solid grasp of JavaScript (ES6+), HTML5, and CSS3 (Flexbox/Grid).
  • Growth Mindset: Proactive, curious, and open to constructive feedback (code reviews).
  • Attention to Detail: A passion for pixel-perfect design and great UX.
  • Git: Basic version control skills (clone, commit, push, pull).
  • English: Good enough to read technical docs and communicate internally.
  • UNIX / Bash Fundamentals: You need to be comfortable using the terminal. Whether you use WSL, Mac, or Linux, you should know your way around basic commands.


Bonus Points

  • Experience with modern frameworks (React, Vue, or Angular).
  • Experience with Lit or a solid understanding of Web Components.
  • Personal GitHub projects that show off clean, organized code.
  • Knowledge of TypeScript, Figma, or Web Accessibility (WCAG).


Whats in it for you?

You aren't here to be a spectator. Youll be part of a high-performance team with a genuine hunger for learning.

  • Launch your career in a boutique agency with global impact, work with cutting-edge tech, and get direct mentoring from a top-tier team.
  • Immerse yourself in cutting-edge tech that is disrupting how companies like PepsiCo, Danone, and Ametller work.
  • Direct mentoring and constant support from a world-class team.

Key Skills

Ranked by relevance

javascript ui typescript react figma html5 linux bash vue
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Posted
Mar 05, 2026
Type
Full-time
Level
Not Applicable
Location
Madrid

Industries

Business Consulting Services

Categories

Engineering Information Technology

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