Senior Frontend Engineer - Angular UI and Performance Lead

Visa Hunt; Madrid; Híbrido; EUR 60.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

RSUs

Hybrid work model

Learning & mentorship

Descripción de la vacante

Celonis is a global leader in Process Intelligence, delivering technologies that turn data insights into actions. As a Senior Frontend Software Engineer, you will own client-side architecture, build scalable UI libraries, and ensure top-tier performance in Angular-based web apps.

You will mentor junior engineers, collaborate with product, UX, and backend teams, and push modern UI standards across our frontend stack. This hybrid role emphasizes both hands-on coding and architectural leadership.

Formación

• 5+ years of professional frontend web development experience.
• Deep proficiency in Angular (recent versions) and TypeScript.
• Expert-level HTML5, CSS3/SCSS, and responsive design skills.
• Extensive experience consuming and integrating RESTful APIs and handling async data.
• Strong familiarity with frontend testing frameworks (Jest, NestJS, Playwright, Cypress).
• Solid understanding of web performance optimization, caching, and browser lifecycles.
• Experience with frontend build pipelines, tooling, and Git/CI/CD.
• Strong UI/UX eye and collaboration across teams.

Responsabilidades

• Design, develop, and maintain scalable web applications with Angular and TypeScript.
• Architect reusable UI components and scalable state management.
• Collaborate with UI/UX to translate designs into pixel-perfect interfaces.
• Integrate RESTful APIs and real-time data into the UI.
• Optimize performance, bundle sizes, rendering speeds, and cross-browser compatibility.
• Write clean, tested frontend code with unit and end-to-end tests.
• Participate in code reviews ensuring accessibility and frontend best practices.
• Mentor junior frontend developers and promote UI craftsmanship.
• Troubleshoot and optimize existing UI components for better user satisfaction.

Conocimientos

Frontend development

Angular

TypeScript

RxJS

UI/UX collaboration

Web performance

REST APIs

Testing frameworks

Git & CI/CD

Herramientas

Angular CLI

Playwright

NestJS

Jest

Cypress

Git

Descripción del empleo

Celonis is a global leader in Process Intelligence, delivering technologies that turn data insights into actions. As a Senior Frontend Software Engineer, you will own client-side architecture, build scalable UI libraries, and ensure top-tier performance in Angular-based web apps.

You will mentor junior engineers, collaborate with product, UX, and backend teams, and push modern UI standards across our frontend stack. This hybrid role emphasizes both hands-on coding and architectural leadership.