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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Frontend Engineer - **Company:** Número De - **Location:** Madrid, Spain (Remote available) - **Salary:** €89,000.0 - €127,000.0 - **Contract:** Permanent contract - **Skills:** Software Quality, Collaborative Software, Digital Content, Node.Js, Performance Tuning, TypeScript, Web Applications, WebGL, RxJS, Application Enhancement Tool, AngularJS, Optimization Algorithms, Reactive Programming, Web Technologies, Front End Software Development - **Published:** July 16, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role The ideal candidate is an experienced frontend engineer with a strong background in building complex web applications, interactive interfaces, and performance-sensitive products. Key qualifications include: + 5+ years of experience developing complex frontend applications. + Strong expertise in Angular and TypeScript, with the ability to architect scalable components and frontend systems. + Solid understanding of reactive programming patterns and experience with RxJS. + Experience building interactive graphics applications using technologies such as Canvas, PixiJS, WebGL, or similar frameworks. + Previous experience working on creative software, video editors, design tools, or other visual applications is highly valued. + Proven ability to identify and solve frontend performance challenges to improve user experience. + Strong understanding of modern frontend development practices, architecture, and optimization techniques. + Experience with technologies such as NgRx and Node.js is a plus. + Strong ownership mindset with the ability to manage outcomes independently. + Excellent written and verbal communication skills in English. + Comfortable working in a remote, international environment with distributed teams. ## Description This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Frontend Engineer - Editor and Graphics based in Spain. This role offers the opportunity to build advanced creative technology used by global brands and high-impact content teams. You will work on a sophisticated browser-based editing experience, developing interactive graphics, real-time collaboration features, and powerful creative workflows. The position combines deep frontend engineering with visual innovation, performance optimization, and complex user interactions. You will contribute to products where technical decisions directly influence how millions of people experience digital content. Working within a small, distributed engineering team, you will have significant ownership and the ability to ship impactful features quickly. This is an ideal opportunity for an experienced frontend engineer passionate about creative tools, modern web technologies, and solving challenging technical problems. Accountabilities: In this role, you will design, develop, and improve advanced frontend experiences while contributing to the evolution of a powerful creative editing platform. Your responsibilities will include: + Building and extending canvas-based creative tools using modern frontend technologies such as Angular, TypeScript, PixiJS, and WebGL. + Transforming design concepts into polished, high-performance user experiences with strong attention to visual details and usability. + Solving complex frontend challenges involving undo/redo systems, layer management, animations, transitions, responsive canvas interactions, and performance optimization. + Developing collaboration features including co-editing, commenting, and approval workflows that support distributed creative teams. + Contributing to frontend architecture decisions and improving the scalability and maintainability of the editor platform. + Partnering closely with designers, engineers, and specialists in video rendering and media processing to deliver innovative solutions. + Taking ownership of features from concept through production, ensuring high-quality implementation and measurable user impact. + Using AI-powered tools effectively to accelerate development while maintaining responsibility for code quality and outcomes. + Continuously improving the product experience through experimentation, technical problem-solving, and user-focused development. ## Related Videos - [Microfrontends at Scale](https://www.wearedevelopers.com/videos/236-microfrontends-at-scale) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Rendering Design Software in the Browser at Penpot](https://www.wearedevelopers.com/videos/1353-rendering-design-software-in-the-browser-at-penpot) - [How to Create New RxJS Operators](https://www.wearedevelopers.com/videos/683-how-to-create-new-rxjs-operators) - [To New Frontiers: The Future of Frontend Development](https://www.wearedevelopers.com/videos/404-to-new-frontiers-the-future-of-frontend-development) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)