We are looking for a Senior Frontend Developer to help build the next generation of our leading cybersecurity product. In this role you will take ownership of end-to-end user experience development using React, building scalable, high-performance applications within a modern, cloud-based, multi-tenant SaaS architecture. You will improve existing features, contribute to UI architecture and testing strategy, and play a direct role in shaping system performance, code quality, and overall engineering standards. Working closely with Product Managers, Backend Developers, and QA Engineers, you will deliver impactful features in a dynamic R&D environment, leverage AI-assisted development tools, and help drive continuous improvement across the platform.What You'll Do:Develop complex React-based frontend components within a scalable SaaS productContribute to frontend architecture and scalable infrastructure designWrite high-performance, maintainable, and reusable codeDesign and implement UI integration and component tests using modern testing frameworksCollaborate closely with Product Managers, Backend Engineers, and QA teamsParticipate in limited backend development using Java or GoWork in an Agile environment with CI/CD, TDD/BDD, and Extreme Programming practicesMeet performance goals and product KPIs