0610 - Sr Front-End Developer (React.js)

Workforce Source

20d • Remote

About The Position

Our client is a global contract research organization (CRO) that provides clinical trial management and drug development services to pharmaceutical, biotechnology, and medical device companies. They handle the full spectrum of clinical research, from study design and patient recruitment to data management and regulatory submissions, helping companies bring new therapies to market faster and more efficiently. We are seeking a highly skilled Front-End Developer with 5+ years of React.js experience to join the Agile Scrum team. The ideal candidate will have deep expertise in React components, hooks, state management, and lifecycle methods to build scalable, high-performance applications. You will collaborate closely with UI/UX designers, back-end developers, and product managers to create engaging user experiences.

Requirements

• 5+ years of React.js development experience.
• Deep knowledge of React components, hooks (useState, useReducer, Context API), and lifecycle methods.
• Strong proficiency in JavaScript & ES6 features.
• Hands-on experience with state management libraries (Redux, Zustand, Recoil, etc.).
• Experience working with Figma and implementing UI/UX designs accurately.
• Solid understanding of API consumption, authentication (OAuth, JWT), and request handling.
• Familiarity with CI/CD pipelines for deployment automation.
• Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
• Proficiency in CSS, SCSS, Tailwind CSS, or styled-components for styling.
• Prior experience working in an Agile Scrum environment.
• Upper-intermediate English skills or above (English is the primary language of communication in the company)

Nice To Haves

• Experience embedding Power BI into front-end applications.
• Exposure to Power BI development and integration.
• Familiarity with Azure DevOps for CI/CD and backlog management.

Responsibilities

• Develop and maintain React.js applications with a focus on performance, scalability, and maintainability.
• Build reusable and modular components using React.js best practices.
• Implement state management using Redux, Zustand, Recoil, or other libraries.
• Work with designers and developers to translate Figma designs into pixel-perfect UI components.
• Integrate with RESTful APIs, manage authentication (OAuth, JWT), and handle API requests efficiently.
• Ensure code quality through unit and integration testing (Jest, React Testing Library, Cypress).
• Utilize modern styling frameworks like CSS, SCSS, Tailwind CSS, or styled-components for responsive designs.
• Contribute to CI/CD pipelines for automated testing and deployments.
• Participate in Scrum ceremonies, including sprint planning, stand-ups, and retrospectives.

Benefits

• 100% remote job
• Long-term employment
• Well-known customer with modern technologies
• Competitive salary
• Great international team (from the US, England, Poland, India)
• Flexible working hours with 4 hours overlap with the US-based team (9 am – 1 pm EST)
• 10 days vacation
• 5 sick days
• 6 US-based holidays

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed