Overview

Rayo, part of the UBDS group, is seeking a Front-End Developer to deliver high-performance, accessible, and maintainable user interfaces for AWS-hosted applications. The successful candidate will work closely with designers, back-end engineers, and DevOps teams to build responsive and scalable front-end solutions. This role is suited to developers with solid experience in modern JavaScript frameworks and a keen understanding of front-end performance and security principles, as well as those ready to provide architectural input and mentor junior colleagues. This opportunity offers a range of responsibilities suitable for both experienced developers and those seeking to grow into senior technical leadership roles within the front-end space.Key Responsibilities

Build and maintain robust, user-centred front-end applications using React or Angular.Integrate front-end components with RESTful APIs and troubleshoot connectivity issues.Implement accessibility standards, performance optimisation techniques, and responsive design principles.Drive the adoption of secure coding practices and front-end architecture standards.Contribute to the design and maintenance of component libraries and design systems.Collaborate with UX/UI designers to ensure implementation aligns with design intent.Lead front-end projects and provide technical direction and mentoring to less experienced developers.Support continuous integration and delivery using AWS-native tools such as Amplify and CodePipeline.Participate in code reviews and cross-functional Agile ceremonies.Requirements

Strong experience with JavaScript frameworks, particularly React or Angular.Demonstrated ability to consume and integrate APIs within complex applications.Practical knowledge of unit and integration testing frameworks (e.g., Jest, Mocha).Experience working with UX/UI designers and design systems.Familiarity with front-end CI/CD tools and AWS-native deployment mechanisms.Understanding of accessibility standards, front-end security, and performance optimisation.Experience participating in Agile delivery teams and collaborative software environments.Desirable Experience

26 years of front-end development experience in commercial environments.2+ years working with AWS-based front-end delivery (e.g., Amplify, CloudFront, Cognito integration).Prior involvement in mentoring or leading development teams.Experience delivering secure and accessible public sector or regulated applications.Benefits

Training All team members are offered a number of options in terms of personal development, whether it is technical led, business acumen or methodologies. We want you to grow with us and to help us achieve morePrivate medical cover for you and your spouse/partner, offered via VitalityDiscretionary bonus based on a blend of personal and company performanceHoliday You will receive 25 Days holiday, plus 1 day for Birthday and 1 day for your work anniversary in addition to UK bank holidaysElectric Vehicle leasing with salary sacrificeContributed Pension SchemeDeath in service coverAbout UBDS Group

At UBDS Group our mission is to support entrepreneurs who are setting new standards with technology solutions across cloud services, cybersecurity, data and AI, ensuring that every investment advances our commitment to innovation, making a difference, and creating impactful solutions for organisations and society.Equal Opportunities

We are an equal opportunities employer and do not discriminate on the grounds of gender, sexual orientation, marital or civil partner status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age.Location

London, England, United KingdomSeniority level

Mid-Senior levelEmployment type

ContractJob function

Information TechnologyIndustries

Software Development

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