Senior Frontend Engineer

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10 hours ago

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Investigo

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We’re a leading recruiter with a team of over 250 consultants working in London, Guildford, Milton Keynes, St Albans, Birmingham, New York, Philadelphia, and San Diego.

201 - 500 employees

📋 Description

• 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.

🎯 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. • Experience working on real-time interfaces, desktop applications, PWAs, or browser extensions. • Familiarity with visualising complex or graph-based datasets. • Exposure to AI/ML-driven products or working alongside data/ML teams. • A portfolio or examples of previous frontend work.

🏖️ Benefits

• Flexible Working: We offer a hybrid & remote working models. • Private Medical • Inclusive Culture: Enjoy an inclusive culture and environment. • Flexible Benefits: A flexible benefits programme to suit your needs (discounts etc). • Holiday: Generous holiday allowance. • Learning: Access to continuous learning and development opportunities. • Bonus Potential: Bonus potential based on performance and business-related factors. • Discounts: Discounts on a wide range of products and services. • Pension: Pension scheme contributions with Government Top-Up • EV Car Scheme • More Benefits: Explore additional benefits on our career site.