Top Front End Developer Jobs in Seville

Develop server-side applications using Kotlin and Java, collaborate with teams to enhance Atlassian plugins, and ensure code quality through testing and reviews.

Lead ownership of the frontend experience from design through deployment and operations. Ship features collaboratively, drive technical and UX decisions, maintain strong automated test coverage (unit/integration/e2e), improve frontend observability, and help migrate a hybrid Backbone/Node codebase toward modern React/TypeScript.

As a Frontend Engineer, you will build and enhance frontend solutions for financial configurations, develop internal tools, and create customer-facing interfaces, ensuring high performance and quality in financial applications.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end engineers to implement high-performance, cross-browser UIs, manage state with Redux/Context API, integrate RESTful APIs, and debug front-end issues while following best practices and maintaining clean, scalable code in a remote team.

Develop and maintain complex React.js web applications; collaborate with designers and backend teams to build responsive, accessible UIs; write clean, scalable code; optimize performance; debug and support testing and deployment; mentor junior developers and follow Agile practices.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.

Full-stack Developers at QuantCo build user interfaces for machine learning solutions, collaborating with data scientists and engineers to deliver actionable products.

Design, build, and maintain performant React/Redux/Vite web applications and data-visualization portals. Collaborate across teams to implement features and RESTful APIs, write tests, perform code reviews, debug complex issues, follow agile and CI/CD practices, refine UX details, and adopt tooling to speed development.

Design and develop front-end solutions using JavaScript frameworks (React/Angular/Vue). Collaborate with stakeholders to define solutions, support product engineering leads in agile ceremonies, mentor junior engineers, and maintain reliable, reusable code while understanding component interactions and CI/CD processes.

Develop and maintain front-end Drupal 8/9 themes, custom templates and libraries; implement full-lifecycle Drupal solutions; propose user-friendly layouts and improvements; perform feature gap analysis; support automated testing, CI, and deployment processes.

Remote front-end Drupal developer responsible for building Drupal themes, custom templates and libraries; developing and maintaining Drupal 8/9 implementations; proposing user-friendly layouts and improvements; performing feature gap analysis; and supporting responsive UI/UX using frameworks and CI/deployment/testing workflows.

Develop, implement, and maintain Drupal 9 front-end websites; perform feature gap analyses, build custom features for migrations, provide post-migration support, integrate REST APIs, and support CI/CD and automated testing processes.

Develop, implement, and maintain Drupal 9 front-end websites, perform feature gap analyses, build custom features to support migrations, and provide post-migration support. Work with responsive frameworks, REST APIs, Git, automated testing, CI/CD, and Agile delivery.

Remote front-end developer role to design and build client-facing applications using JavaScript frameworks (React/Angular/Vue). Collaborate in agile teams, support project ceremonies, mentor juniors, and maintain CI/CD workflows and code quality.

Remote front-end developer working with product and engineering leads to design, prototype, and build reusable client-side solutions. Participate in backlog refinement, sprint ceremonies, mentoring juniors, and translating technical issues to non-technical stakeholders.

Join Cerebras Systems to optimize and develop frontend compiler infrastructure for PyTorch models on their unique wafer-scale AI platform, focusing on model representation and optimization.

Design and evolve frontend platform primitives for a canvas-based workflow builder, improve real-time collaboration, optimize rendering and performance, own architecture and modularization, drive RFCs, mentor peers, and collaborate cross-functionally to enable scalable, high-performance user experiences across cloud and self-hosted deployments.

Own and evolve the marketing website platform: design Sanity content schemas, build Astro components and design-token-driven UI, ensure accessibility (WCAG 2.2 AA), SEO, localization and performance, extend tooling for AI-assisted composition, and ship end-to-end features from schema to production.

Build and maintain responsive, high-performance user interfaces using React and modern front-end technologies. Translate UI/UX designs into reusable code, integrate with backend APIs, optimize performance and cross-browser compatibility, and contribute to testing, code reviews, and engineering best practices in a product-driven, remote environment.

Senior front-end Drupal developer to design, develop, implement, and maintain Drupal 8 websites. Build responsive sites (Bootstrap), code in PHP/HTML/CSS/JavaScript, integrate REST APIs, use Git, and work with MySQL/MariaDB. Use wireframing/modeling tools and apply automated testing, deployment processes, and CI. Remote contractor, must work New York time and be fluent in English.

The role involves developing high-quality Vue.js applications, creating interactions, collaborating with back-end engineers, and writing tests.

Serve as a senior Java full-stack engineer building and maintaining backend services for blockchain applications, integrate APIs with React/Vue frontends, design scalable enterprise blockchain solutions, troubleshoot complex backend issues, and collaborate with cross-functional teams to apply best practices.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.

Develop high‑traffic web applications and self‑serve conversion flows (discovery → quote → signup), build and optimize alan.com and marketing acquisition systems, collaborate with Marketing/Sales/Product/Data/Design, and deliver measurable improvements that drive member acquisition and revenue using the company stack.

Build and ship full-stack features for North, develop autonomous agents that access sensitive enterprise data, productionize state-of-the-art models, write minimal, secure low-resource code, and collaborate with researchers to deploy performant RAG/agentic applications while prioritizing security and user experience.