Job Function: Software \& Cloud Por qué SoftwareOne?: SoftwareOne is a leading global provider of software and cloud solutions that is redefining how businesses build, purchase, and manage everything in the cloud. By helping customers migrate and modernize their workloads and applications \-and at the same time navigate and optimize resulting software and cloud changes\- SoftwareOne unlocks the value of technology. The company's 8,900 employees are motivated to deliver a portfolio of 7,500 software brands with sales and delivery capabilities across 60 countries. Headquartered in Switzerland, SoftwareOne is listed on the SIX Swiss Exchange under the symbol SWON. Visit us at https://www.softwareone.com/es\-es The position: At SoftwareOne, we are looking for a **Senior** **Frontend** **Developer** to join our Applications Delivery Centre, a dynamic team distributed across Spain, dedicated to modernizing applications and building innovative solutions on **AWS, Azure**, and **Google Cloud**. We are a company that values people, and we maintain the flattest possible organizational structure, so any idea you propose will always be heard and valued. If you are someone eager to learn, contribute, and collaborate as part of a team, we're a perfect match. **The role:** * **Cloud\-Native Architecture:** You will develop **yellowfield**, **brownfield**, and **greenfield** applications optimized for multi\-cloud environments (**AWS, Azure, GCP**). * **Modern Frameworks:** You will work with the latest versions of **Angular 17\+**, **React 18\+**, or **Vue 3**, implementing patterns such as **Composition API** and **React Suspense**. * **Performance \& Core Web Vitals:** You will optimize **LCP, INP, and CLS** by applying advanced techniques like **lazy loading**, **code splitting**, and **tree shaking**. * **API Integration:** You will design and implement efficient consumption of **REST APIs** and **GraphQL**, handling loading states, error handling, and caching strategies. * **Component Architecture:** You will apply **SOLID**, **DRY**, and **Clean Architecture** principles to create reusable and maintainable components following patterns such as **Atomic Design**. * **Testing \& Quality:** You will implement **unit testing** using modern frameworks (**Jest**, **Vitest**, **Testing Library**) and participate in rigorous **code reviews**. * **Web Accessibility** * **Hybrid Mobile/Web Solutions** using **Ionic** with Angular and **Capacitor**. What we expect from you: **Technology Stack \& Tools** * **Frontend:** Semantic HTML5, **CSS Grid/Flexbox**, **TypeScript**, **Sass/SCSS**. * **Frameworks:** React, Angular, Vue 3\. * **Performance:** WebP/AVIF optimization, CDN integration, bundle analysis. * **DevOps:** **Git**, **GitHub Actions**, **SonarCloud**, **Azure DevOps**, **JIRA**. * **Testing:** Jest, Cypress, Playwright, Storybook for component testing. * **Monitoring:** Lighthouse audits, Web Vitals tracking, performance budgets. * **5\+ years** of professional frontend development experience with a focus on **performance and scalability**. * Expert in **Angular** with mastery of its ecosystem and knowledge of React or Vue.js. * Solid experience in **responsive design** with a **mobile\-first** approach and modern techniques such as **Container Queries**. * In-depth knowledge of **performance optimization**: bundle splitting, lazy loading, caching strategies, and Core Web Vitals. * **Clean Code** mindset: consistent application of SOLID, KISS principles, and design patterns such as **Observer** and **Composite**. * Experience with **agile methodologies**, **pair programming**, and **code review** as daily practices. * Passion for **troubleshooting** and proactive analysis of bottlenecks and UX optimization. * **Growth mindset**: curiosity to learn new technologies and to teach other team members.