Senior 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 Senior Frontend Developer based in Brazil. This is an opportunity to create impactful digital experiences by developing high-quality frontend solutions that support experimentation, personalization, and customer engagement. You will work with modern web technologies and tools to build tailored experiences that help improve digital performance and user satisfaction. Collaborating closely with marketing professionals, developers, optimization consultants, and IT stakeholders, you will translate business objectives into scalable technical implementations. You will also play an important role in maintaining the quality and reliability of A/B tests and personalization campaigns through regular reviews and technical audits. Beyond hands-on development, you will contribute to documentation, project estimates, and clear communication between technical and business teams. This role is ideal for a proactive developer who enjoys solving complex challenges, working independently, and contributing to a collaborative international environment.