Senior Frontend Engineer

Posted about 1 month agoViewed
United KingdomFull-TimeSoftware Development
Company:The Investigo Group
Location:United Kingdom
Languages:English
Seniority level:Senior, 6+ years
Experience:6+ years
Skills:
CypressFrontend DevelopmentJavascriptJestReact.jsTypeScriptRESTful APIs
Requirements:
Proven experience in a Senior Frontend or equivalent role (typically 6+ years). Strong expertise in modern frontend technologies, HTML5, CSS3, JavaScript/TypeScript, ES6+. Deep experience with modern UI frameworks (React preferred, but Svelte or similar transferable skills also considered). Strong capability in building scalable, data-rich applications and managing complex application state. Experience developing reusable component libraries or contributing to design systems. Proficiency working with RESTful APIs and integrating with backend services. Solid understanding of accessibility standards (e.g. WCAG) and how to implement them. Familiarity with testing tools such as Jest, Cypress, or Playwright for unit, E2E, and automation testing. Strong debugging skills with the ability to diagnose performance, rendering, and browser-related issues. Comfortable working in fast-paced, iterative environments with cross-functional teams. A proactive, self-driven approach with the ability to work independently and take ownership. Excellent communication skills, able to articulate decisions and collaborate effectively with technical and non-technical colleagues. A growth mindset, open to feedback, learning, and exploring new tools, frameworks, or approaches. Strong problem-solving skills, with a focus on delivering thoughtful and maintainable solutions. A team-first mentality, with the willingness to support others, share knowledge, and contribute to positive team culture. Adaptability and comfort working in evolving environments as the team grows and new technologies emerge. Eligibility for Security Check (SC) clearance.
Responsibilities:
Design, build, and maintain modern, performance-focused frontend applications across web and desktop platforms. Develop and optimise reusable UI component libraries to ensure consistency and efficiency across products. Translate UX wireframes, prototypes, and design concepts into high-quality, accessible user interfaces. Collaborate with backend engineers to integrate APIs, manage data flows, and ensure a seamless end-to-end experience. Establish and champion best practices in coding standards, architecture, documentation, and frontend processes. Conduct thorough code reviews to maintain code quality, scalability, and maintainability. Implement testing strategies using tools such as Jest, Cypress, or Playwright to support robust, reliable releases. Ensure interfaces are accessible and meet WCAG standards. Diagnose and resolve complex UI issues, including performance bottlenecks, browser inconsistencies, and rendering challenges. Contribute to continuous improvement by suggesting new tools, frameworks, and approaches to enhance developer experience and product quality. Work on innovative projects involving real-time updates, visualisation of complex data structures, and interactions with AI/ML features.
About the Company
The Investigo Group
View Company Profile
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