We are looking for a skilled React Developer to join our front-end engineering team, working on customer-facing and internal platforms that support clinical research, healthcare data analytics, and real-world evidence generation. You will build responsive, high-performance, and easy-to-use user interfaces used by researchers, clinicians, and life-sciences stakeholders worldwide, translating complex healthcare data and workflows into intuitive digital experiences.

Job Responsibilities:

• Develop new user-facing features using React.js, translating wireframes and UX designs into high-quality, production-ready code;
• Build reusable components and front-end libraries/design systems for use across multiple Customertimes products;
• Integrate front-end applications with RESTful APIs / GraphQL services and backend systems handling large-scale healthcare and clinical trial data;
• Implement and maintain state management solutions (Redux, Redux Toolkit, Context API, or React Query);
• Optimize application performance, bundle size, and Core Web Vitals across a wide range of devices and browsers;
• Diagnose and troubleshoot bugs, UI defects, and performance issues in existing applications;
• Write unit, integration, and end-to-end automated tests (Jest, React Testing Library, and Cypress) to ensure code quality and reliability;
• Participate in code reviews, sprint planning, and agile ceremonies; collaborate closely with product managers, UX designers, backend engineers, and QA;
• Ensure applications meet WCAG compliance, security, and data-privacy requirements appropriate for healthcare/life-sciences platforms;
• Contribute to technical documentation and coding standards; mentor junior developers as needed.

Requirements:

• 4+ years of professional experience developing with React.js;
• Strong proficiency in JavaScript (ES6+), including DOM manipulation, event handling, and data structures;
• In-depth knowledge of HTML5, CSS3, and modern front-end tooling;
• Thorough understanding of React core principles — JSX, Virtual DOM, hooks, and component lifecycle;
• Experience with state management workflows such as Redux, Redux Toolkit, or Flux;