Senior Software Development Engineer- React UI || Immediate Joiner

Job Description

We are building an advanced Cybersecurity AI Platform designed for high-stakes security environments, including Fortune 500 enterprises, government agencies, and defense organizations. As a UI Engineer, you will be responsible for developing a high-performance, secure, and responsive user interface that enables security teams to visualize real-time threat intelligence and interact with large-scale security datasets while adhering to the highest security and compliance standards.You will work with React.js, TypeScript, APIs, WebSockets, and a hybrid JavaScript SDK to build enterprise-grade security applications and dashboards that are fast, scalable, and trusted by organizations where security is critical. Key Roles & Responsibilities: Develop responsive applications that efficiently manage large-scale cybersecurity systems. Build scalable UIs that render large volumes of security data efficiently. Create real-time security dashboards using React.js, TypeScript, and data visualization libraries (Recharts, ECharts, or Chart.js). Integrate WebSockets, REST APIs, and a JavaScript SDK to ensure real-time security event tracking. Implement role-based access control (RBAC/ABAC), multi-factor authentication (MFA), and secure session management. Follow secure UI development practices to prevent XSS, CSRF, Clickjacking, and data leaks. Optimize UI performance using React Profiler, Lighthouse, lazy loading, and memoization. Write and maintain comprehensive end-to-end tests using Playwright to ensure cross-browser compatibility and security validation. Work in an agile startup environment, balancing speed and precision to deliver high-impact features. Basic Qualifications: A bachelors or master’s degree in computer science, electronics engineering or a related field 5+ years of experience in building modern web applications using React.js and TypeScript. Strong experience in Playwright for automated UI testing, network interception, and security debugging. Deep understanding of secure frontend development, including Content Security Policy (CSP), input validation, and secure authentication flows. Experience handling real-time data via WebSockets and REST APIs. Proficiency in state management using Zustand or React Query. Knowledge of accessibility best practices (WCAG, Section 508). Familiarity with frontend performance tuning and handling large-scale datasets. Strong grasp of Git, CI/CD pipelines, and cloud-based frontend deployment (Vercel, AWS, or similar platforms). Preferred Qualifications Experience in cybersecurity, threat intelligence, or network security platforms. Prior work on real-time data dashboards for security monitoring. Familiarity with geospatial JavaScript tools for tracking and visualizing security threats. Experience with Storybook for UI documentation and component testing.