Frontend Engineer - Fixed Contract until June 2026.
23 days ago
We are seeking a Frontend Engineer to contribute to the development of advanced interfaces that support cutting-edge AI and data-driven workflows. This role is ideal for someone who enjoys transforming complex technical ideas into clean, efficient, and intuitive user experiences. You’ll be working in a fast-paced environment alongside product specialists, designers, and researchers who rely on your work to visualize and interact with sophisticated backend systems. What You’ll Do • Build modern, scalable web applications using React or Next.js with TypeScript, ensuring clean architecture and maintainable components., • Collaborate closely with product and research teams to design UI flows that simplify complex processes and experimental insights., • Integrate and consume APIs (REST or GraphQL), ensuring efficient data handling and high-quality rendering of dynamic information., • Translate early-stage technical concepts into polished internal tools through quick iteration and user feedback., • Focus on performance optimization, usability, and accessibility to deliver seamless user experiences., • Work with backend engineers on features powered by Python-based services and cloud-native infrastructure., • Contribute to deployment workflows supporting AWS and cloud environments. Required Qualifications • 1–4 years of professional experience building web applications with React or Next.js + TypeScript., • Working knowledge of Python, especially for collaborating on backend features or understanding service interactions., • Understanding of cloud platforms (preferably AWS) and modern development environments., • Strong experience with component-driven UI development, state management (Redux, Recoil, Zustand, etc.), and responsive design systems., • Solid experience integrating APIs and handling frontend data workflows., • Ability to operate in rapid development cycles, converting prototypes and research concepts into robust tools., • Strong communication and team-collaboration skills. Nice to Have • Experience creating dashboards, analytics interfaces, or tools for technical or research-oriented users., • Familiarity with LLM or AI tool ecosystems (Hugging Face, OpenAI, LangChain, etc.)., • Knowledge of data-visualization frameworks (ECharts, Plotly, Recharts, etc.)., • Understanding of authentication and secure frontend application patterns (OAuth2, JWT)., • Interest in building tools that support machine-learning, AI, or automation workflows. Contract Details • Fixed-term contract, • Based in Zaragoza, with 3 days per week onsite If this opportunity motivates you or fits your experience, apply now or email .