Experteer Overview
As a Senior Frontend Software Engineer, you will design, build, and maintain sophisticated Angular-based interfaces that drive user-friendly workflows. You’ll own client-side architecture, component libraries, and performance to deliver exceptional UX in a high-growth SaaS environment. You’ll collaborate with product, design, and backend teams to translate complex requirements into responsive web apps, while mentoring others and elevating frontend practices. This role offers impact across critical operational interfaces and a chance to shape scalable UI solutions in a mission-driven company.

Compensaciones / Beneficios
• Design, develop, and maintain scalable web apps using Angular and TypeScript
• Architect reusable UI components, state management, and data flows
• Collaborate with UI/UX designers to translate wireframes into pixel-perfect interfaces
• Integrate RESTful APIs and real-time data feeds into the UI
• Optimize performance, bundle sizes, rendering, and cross-browser compatibility
• Write clean, tested frontend code with unit and e2e frameworks
• Participate in code reviews ensuring accessibility (WCAG)



and frontend best practices
• Mentor junior frontend developers and promote UI craftsmanship
• Troubleshoot and optimize existing UI components to improve user satisfaction

Responsabilidades
• 5+ years of frontend experience
• Deep proficiency in Angular (recent versions), TypeScript, RxJS, and modern state management
• Expert-level HTML5, CSS3/SCSS, responsive design
• Experience consuming RESTful APIs and asynchronous data streams
• Frontend testing frameworks (Jest, NestJS, Playwright, Cypress)
• Web performance optimization, client-side caching, and browser lifecycle
• Familiarity with frontend build pipelines, tooling, and Git (Angular CLI, CI/CD)
• Strong UI/UX eye and cross-functional collaboration

Requisitos principales
• RSUs and merit-based refresh grants
• Unlimited PTO (in applicable regions)
• versátil hybrid work model
• learning framework and mentorship programs
• Wellhub memberships and mental health support
• Impact Days for volunteering

📌 Sr. Frontend Software Engineer - Orchestration and Automation (Madrid)
🏢 Celonis
📍 Madrid