Senior React.js Developer

About Polaris Wireless Polaris Wireless is a Silicon Valley-based innovator of software-driven wireless Location Intelligence solutions, founded in 2001. The company locates mobile devices across all carrier networks and air interfaces (2G–5G) using patented RF pattern-matching technology (WLS™) that is immune to spoofing or disabling and includes a certified indoor 3D vertical location solution. Its analytics platform applies AI/ML and agentic AI to petabytes of location data, enabling real-time threat monitoring, mobility pattern discovery, and predictive intelligence — forming the only full-stack national security location intelligence solution on the market. With 130+ issued patents, customers span wireless carriers, government agencies, law enforcement, and commercial enterprises across North America, the Middle East, Africa, Southeast Asia, and Latin America. Headquartered in Santa Clara, CA, with offices in Zug, Switzerland, the Middle East, and Asia, Polaris seeks motivated individuals with the highest standards of integrity to join its team. About the Role We are looking for an experienced Senior React.js Developer to join our growing engineering team. In this role, you will be responsible for designing, developing, and maintaining high-quality web applications using React.js. Key Responsibilities As a Sr developer, you will be developing front-end applications using React.jsCollaborate with UX/UI designers to translate designs and wireframes into high-quality code.Optimize components for maximum performance across a variety of web-capable devices and browsers.Write clean, maintainable, and testable code, ensuring the best possible performance and user experience.Conduct code reviews and ensure adherence to coding standards and best practices.Troubleshoot and debug issues, optimizing applications for speed and efficiency.Develop and run automation framework to minimize issues, increase code efficiency and issue free.Ability to use and adapt AI tools. Qualifications Experience: 10+ years of experience in front-end development with a focus on React.js. Technical Skills: Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, CSS3, and React.js and Next.jsExperience with modern JavaScript frameworks and libraries (Redux, React Router, etc.).Knowledge of front-end build tools (Webpack, Babel, etc.).Familiarity with RESTful APIs and integrating third-party services.Experience with version control tools such as Git.Understanding responsive web design and cross-browser compatibility.Experience with state management tools like Redux, MobX, or Context API.Knowledge of testing frameworks and libraries (Jest, Enzyme, React Testing Library).Proficient in maps libraries like ESRI to develop complex map objects.Proficient in debugging applications and ability to fix complex performance issues.Proficient in using AI tools for developmentGood team player with communication skills.