Senior Frontend Engineer – SoftwareOne

Filled
February 18, 2026
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Job Description

📍 Location

León, Santiago de Compostela, or Madrid, Spain

💼 About SoftwareOne

SoftwareOne, in partnership with Crayon, is a global AI-powered software and cloud solutions provider with a presence in over 70 countries and 13,000+ professionals. The company emphasizes innovation, continuous learning, and people-first culture, supporting employees to grow and make global impact in cloud, software, data, AI, and more.

🛠 Role Overview

We are seeking a Senior Frontend Engineer to lead the development of modern, cloud-ready applications across Angular, React, or Vue frameworks. The role focuses on building high-performance, scalable, and accessible web applications, mentoring developers, and shaping frontend architecture for AWS, Azure, and Google Cloud environments.

✅ Key Responsibilities

  • Develop modern frontend applications with Angular, React, or Vue, following clean architecture principles.
  • Optimize performance, responsiveness, and accessibility across applications.
  • Design integrations with REST and GraphQL APIs, ensuring efficient state management, caching, and error handling.
  • Conduct code reviews, maintain development standards, and improve testing processes.
  • Ensure maintainable component architecture, responsive designs, and adherence to Core Web Vitals best practices.
  • Mentor junior developers and foster continuous learning and collaboration.

💻 Essential Skills

  • Strong expertise in Angular; experience with React or Vue is highly valued
  • Advanced knowledge of HTML5, CSS Grid/Flexbox, TypeScript, and modern frontend patterns
  • Experience in performance optimization, responsive design, accessibility, and clean architecture
  • Familiarity with testing tools such as Jest, Cypress, Playwright
  • Experience with DevOps workflows: Git, GitHub Actions, Azure DevOps
  • Passion for user experience, high code quality, and continuous learning

🌟 Desirable Skills

  • Hybrid mobile/web development experience with Ionic or Capacitor
  • Familiarity with Storybook, SonarCloud, performance audits (Lighthouse, Web Vitals), and performance budgets
  • Knowledge of container queries, advanced caching strategies, and design systems

🎯 Why Join

  • Work in a collaborative, distributed, people-first culture
  • Influence cloud-native frontend architecture across global projects
  • Opportunity to mentor and shape the development standards
  • Exposure to cutting-edge technologies in cloud and frontend development
  • Competitive career growth and continuous learning opportunities