Lead Frontend Developer

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Lead Frontend Developer based in Brazil.

This role offers an opportunity to shape customer experiences across digital platforms through high-quality frontend development, A/B testing, and personalization. You will lead the implementation of tailored user experiences, using modern web technologies and experimentation tools to support digital marketing and business objectives. Working closely with marketers, developers, optimization consultants, and IT stakeholders, you will help transform business needs into scalable and effective technical solutions. You will play a key role in ensuring experiments are implemented correctly, monitored consistently, and optimized for performance and usability. The position combines hands-on technical work with leadership, troubleshooting, documentation, and cross-functional collaboration. It is an excellent fit for an experienced frontend professional who enjoys solving complex problems, working independently, and delivering measurable improvements to digital experiences within an international environment.