JR-204090 React Developer Middle

Customertimes; Bengaluru; On-site; INR 1,500,000 - 2,600,000; Full time

Job summary

Customertimes is seeking a skilled React Developer to join our front-end engineering team. You will build responsive, high-performance user interfaces for clinical research and healthcare data analytics, translating complex data into intuitive experiences for researchers and clinicians worldwide.

Responsibilities include crafting reusable components, integrating with REST/GraphQL services, and ensuring accessibility and security compliance.

Qualifications

• 4+ years of professional React.js experience.
• Strong proficiency in JavaScript (ES6+).
• Solid knowledge of HTML5, CSS3 and front-end tooling.
• Experience with Redux/Redux Toolkit or similar state management.
• Familiarity with RESTful APIs and GraphQL.

Responsibilities

• Develop new user-facing features using React.js from wireframes.
• Build reusable components and libraries for multiple products.
• Integrate front-end with REST/GraphQL and backend systems.
• Implement and maintain state management solutions.
• Optimize performance and Core Web Vitals across devices.
• Write unit/integration tests and participate in code reviews.
• Ensure WCAG, security, and data-privacy compliance.
• Contribute to documentation and coding standards; mentor juniors.

Skills

React.js development

JavaScript ES6+

HTML5 / CSS3

Redux Toolkit / state management

TypeScript (desirable)

REST/GraphQL

Git

Webpack/Vite

Responsive design

Education

Bachelor's degree in CS or related field

Tools

Jest/RTL/Cypress

Job description

Project Description

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;


• Familiarity with TypeScript is highly desirable;


• Experience consuming RESTful APIs and/or GraphQL;


• Proficiency with version control tools (Git);


• Experience with front-end build tools (Webpack and Vite) and CI/CD pipelines;


• Solid understanding of responsive design and cross-browser compatibility.

Additional Comments

• Prior experience in healthcare, life sciences, pharma, or clinical research technology (e.g., eCOA, CTMS, and EDC systems);


• Familiarity with data-privacy and compliance considerations (HIPAA, GxP, and 21 CFR Part 11);


• Strong communication skills and ability to translate business/clinical requirements into technical solutions;


• Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent practical experience).