Infinity Quest
Senior React developer
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Senior React developer
Senior React Developer (Front End)
Location – Sheffield, UK (Hybrid)
About the Role
As a Senior React Developer, you will design, build, and maintain user-facing web applications, creating interactive, accessible, and visually appealing experiences. You will take ownership of frontend architecture and system design, ensuring applications are performant, scalable, secure, and maintainable across browsers and devices.
Key Responsibilities
You will additionally:
- Lead the POD from a frontend perspective.
- Mentor and support junior React developers.
- Drive engineering best practices and frontend standards.
Core Responsibilities
Frontend Development
- Design and develop complex React-based user interfaces.
- Build production-ready applications using React, JavaScript/TypeScript, HTML, and CSS.
- Develop reusable components and shared UI libraries.
- Enhance and maintain existing applications by:
- Fixing defects,
- Improving layouts,
- Implementing new features.
- Ensure responsive design across desktop and mobile platforms.
- Maintain cross-browser compatibility.
Frontend Architecture
- Own frontend system architecture and technical design.
- Design scalable component architecture.
- Implement efficient state management strategies.
- Optimize:
- Data fetching,
- Caching,
- Application performance.
- Balance:
- Scalability,
- Maintainability,
- Security,
- Accessibility,
- Developer experience.
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Accessibility & UI Quality
- Deliver accessible user interfaces aligned with WCAG standards.
- Use:
- Semantic HTML,
- Keyboard navigation,
- ARIA where appropriate.
- Promote inclusive design practices.
Collaboration
- Work closely with:
- Product teams,
- UX/UI Designers,
- Backend Engineers,
- QA Engineers.
- Deliver seamless end-to-end user experiences.
Engineering Excellence
- Conduct code reviews.
- Implement testing strategies.
- Maintain CI/CD best practices.
- Produce technical documentation.
- Improve engineering standards and development processes.
Leadership
- Lead frontend development within the POD.
- Mentor junior React developers.
- Support technical decision-making.
- Promote engineering best practices across the team.
Required Technical Skills
Core Technologies
- React.js
- JavaScript (ES6+)
- TypeScript
- HTML5
- CSS3
Frontend Expertise
- Responsive web design
- Modern CSS patterns
- Browser APIs
- Cross-browser compatibility
- Component-based architecture
- Reusable component libraries
- State management
- Component design
- Data fetching
- Caching strategies
- Performance optimization
- System design
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Code Quality
- Debugging existing applications
- Layout fixes
- Functional enhancements
- Defect resolution
- Code reviews
- Clean coding practices
Testing
- Unit Testing
- Integration Testing
- End-to-End (E2E) Testing
Accessibility
- WCAG compliance
- Semantic HTML
- Keyboard accessibility
- ARIA
- Inclusive design
Soft Skills
- Strong communication skills
- Leadership and mentoring ability
- Cross-functional collaboration
- Problem-solving
- Technical ownership
- Stakeholder management
Experience Required
- Strong experience building production-grade React applications.
- Expert-level JavaScript (ES6+) knowledge.
- Strong TypeScript proficiency.
- Experience designing scalable frontend architectures.
- Proven experience improving and maintaining existing codebases.
- Experience implementing accessibility best practices.
- Experience with modern testing frameworks and CI/CD pipelines.
- Experience mentoring junior developers and leading frontend initiatives.
Interested candidates, please contact: Kaustubh Chakraborty Associate Client Manager (UK & EU Recruitment)
📞 Desk: +44-121-667-9124 (Ext: 112) ✉ Email: kaustubh.c@i-q.co
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