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 (Contractor) based in Spain.

This fully remote contract opportunity is designed for an experienced frontend engineer who thrives in fast-paced product environments and enjoys building high-quality web applications from the ground up. You will play a key role in delivering intuitive, production-ready user interfaces while collaborating closely with product, design, and backend engineering teams. Working in an AI-assisted development environment, you will leverage modern engineering tools to accelerate delivery while maintaining exceptional standards for code quality, performance, and usability. This role offers significant ownership across the entire feature lifecycle, enabling you to influence frontend architecture, improve engineering practices, and contribute to a rapidly evolving SaaS platform.

Accountabilities
- Design, develop, and deliver responsive, pixel-perfect user interfaces using React, TypeScript, and Material UI.




- Own frontend features from design handoff through implementation, testing, deployment, and continuous improvement.
- Build complex, validated forms and deliver seamless user experiences across desktop, tablet, and mobile devices.
- Develop and maintain automated unit, integration, and end-to-end tests to ensure application reliability.
- Optimize frontend performance, accessibility, responsiveness, and Core Web Vitals.
- Collaborate closely with product managers, designers, and backend engineers to deliver high-quality features.
- Participate in code reviews, mentor other engineers, and contribute to frontend best practices and architecture decisions.
- Utilize AI-assisted development tools responsibly to improve productivity while reviewing and validating generated code.
- Help evolve the frontend technology stack, component library, design system, and TypeScript adoption.

Requirements

📌 Senior Frontend Engineer (España)
🏢 Jobgether
📍 España