Front-End Developer (React/Modern JavaScript) - eSC/eDV Clearance

The Front-End Application Developer is responsible for designing, developing, and supporting modern user interfaces for web and mobile applications. The role involves translating UI/UX designs into responsive, accessible, and performant front-end experiences using modern JavaScript frameworks. Depending on experience, responsibilities may also include leading front-end delivery, defining architecture, setting engineering standards, mentoring developers, and engaging with stakeholders and clients., * Develop high-quality, responsive, and accessible front-end interfaces using modern JavaScript frameworks.

• Translate UI/UX designs into functional user experiences, ensuring cross-browser compatibility and adherence to brand and design guidelines.
• Collaborate with designers, backend engineers, QA, DevOps, and other team members to deliver end-to-end solutions.
• Build reusable components, UI patterns, and maintain clean, well-structured code.
• Conduct testing, debugging, and performance optimisation to ensure a smooth user experience.
• Participate in requirements analysis, providing front-end input to design and solution discussions.
• Contribute to CI/CD processes and version control workflows using Git-based tooling.
• Stay current with emerging front-end technologies and apply them appropriately.
• Depending on experience:
• Lead front-end development on complex projects and define architecture and coding standards.
• Guide development workflows, testing strategies, and release processes.
• Mentor junior and mid-level developers and support their technical and consulting development.
• Communicate technical decisions, trade-offs, and solution approaches to stakeholders and clients.
• Influence planning, technical strategy, or account-level delivery decisions.

• Strong JavaScript, HTML5, CSS3 development
• Experience with modern frameworks (React, Vue.js, Next.js)
• Understanding of responsive design, accessibility, and usability best practices
• Experience with component libraries, design systems, and UI/UX collaboration
• Strong debugging, testing, and performance optimisation skills
• Experience with Git and Git-based workflows
• Understanding of API integration and backend collaboration
• Knowledge of front-end testing (unit, integration, E2E)
• Familiarity with CI/CD and DevOps workflows
• Strong communication and problem-solving ability
• Optional depending on level:
• Experience leading teams or acting as technical lead
• Experience defining architecture, standards, or best practices
• Understanding of cloud-native environments (AWS, Azure)
• Exposure to Node.js or Next.js server-side concepts
• Consulting or client-facing experience

This role is subject to pre-employment screening in line with the UK Government's Baseline Personnel Security Standard (BPSS). An additional range of Personal Security Controls referred to as National Security Vetting (NVS) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV).

Preferred technical and professional experience

• Experience building and maintaining design systems or enterprise-scale component libraries
• Exposure to performance monitoring and optimisation tooling (e.g. Lighthouse, Web Vitals)
• Experience working in regulated or high-assurance environments (e.g. Public Sector, Financial Services)
• Familiarity with server-side rendering and edge delivery patterns (e.g. Next.js, SSR, static optimisation)
• Experience collaborating in multi-disciplinary, client-facing delivery teams, including participation in workshops or discovery phases

IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

• Tools and policies to support your work-life balance from flexible working approaches, sabbatical programs, paid paternity leave, maternity leave and an innovative maternity returners scheme
• More traditional benefits, such as 25 days holiday (in addition to public holidays), private medical, dental & optical cover, online shopping discounts, an Employee Assistance Program, life assurance and a group pension plan through salary sacrifice.