Senior Frontend Software Engineer

The purpose of this role is to solve complex business problems and technical challenges through the design and development of frontend applications. This role will contribute directly towards exciting technology opportunities in the public health sector; specifically in general practice. You will be responsible for designing, developing, and maintaining high-quality, scalable, and responsive user interfaces.

Key Tasks

Design and Development

• Design, develop, and maintain complex, highly responsive, and user-friendly web applications using modern JavaScript frameworks (e.g. React)
• Drive technical design and architectural decisions for the frontend, ensuring scalability, maintainability, and security
• Develop modular, reusable components and libraries
• Collaborate closely with UX/UI designers to translate wireframes and design mockups into functional interfaces.
• Partner with other members of the development team to define and integrate necessary APIs (REST)

Technical Leadership

• Promote and demonstrate software engineering best practices and principles
• Participate in architectural and design discussions
• Stay abreast of the latest technologies and industry trends
• Diagnose and troubleshoot complex technical issues
• Research and advocate for new technologies, tooling, and development processes to continuously improve the team's tech stack and efficiency
• Contribute to technical documentation and knowledge sharing across the team

Quality Assurance and Compliance

• Ensure all applications adhere to accessibility (a11y) and cross-browser compatibility standards
• Write clean, maintainable, and well-tested code with a strong emphasis on quality and performance
• Conduct code reviews and provide constructive feedback to uphold team coding standards and patterns
• Comply with X-on's Health & Safety, Data Protection, Information Security, PCI & DSP policies and procedures.

• Proven experience in designing, building, and maintaining scalable, modular, and high-performance front-end architectures (e.g., micro-frontends, design systems, component libraries)
• Proven experience with a major front-end framework/library (e.g. React)
• Experience with state management libraries
• Expert-level knowledge of HTML5 semantics, accessibility standards (WCAG), and modern CSS (e.g., CSS Grid, Flexbox, pre-processors like Sass/Less).
• Experience working with RESTful APIs
• Knowledge of the product development lifecycle
• Source control (e.g. GitLab)
• Strong knowledge of software design patterns and object-oriented design principles
• Working experience of unit test frameworks and test automation
• Excellent communication and teamwork skills

Desirable

• Strong expertise in Agile methodologies (e.g. Scrum / Kanban) and tools
• Healthcare industry experience (NHS)
• VOIP call handling

• 25 Days Holiday plus an additional day for your birthday/equivalent
• Cycle to Work Scheme
• Winter Flu Jabs
• Free On-Site Parking
• Learning and development budget with Professional Qualification Support
• £1,000 employee referral bonus
• Social benefits (paid social events)
• Buy Holiday Scheme
• Employee Assistance Program
• Discount on Health Insurance
• Annual Salary Review
• Enhanced Company Sick Pay
• Monthly pizza in the office (Hybrid employees) / coffee voucher (Remote employees)
• SCG mobile benefit