Staff Frontend Engineer

• Define and evolve the frontend architecture, frameworks, and design systems to support large-scale, mission-critical applications
• Partner with product, design, and backend engineering to establish long-term technical roadmaps and ensure seamless integration across systems
• Provide technical leadership and mentorship to senior and junior engineers
• Drive engineering best practices across teams, including testing strategies, CI/CD, performance optimization, and accessibility standards
• Anticipate and solve systemic issues by introducing scalable solutions
• Translate ambiguous product and business requirements into clear technical strategies and execution plans
• Lead design and code reviews
• Represent frontend engineering in cross-team architecture discussions and influence decisions that span multiple product areas
• Stay ahead of industry trends and introduce emerging technologies when they create meaningful business or user impact
• Contribute hands-on to key projects while creating leverage by enabling others to succeed

• 10+ years of professional experience building modern web applications with TypeScript, React, and associated workflows (e.g., Redux, Flux, Recoil)
• Demonstrated experience in leading large-scale frontend systems, including architecture, performance, accessibility, and security
• Proven track record of mentoring and developing engineers into technical leaders
• Deep expertise in design systems, reusable component libraries, and cross-application UI frameworks
• Experience collaborating with product managers, UX designers, and executives to set strategic technical direction
• Strong background in testing methodologies, continuous integration, and delivery pipelines
• Experience with cloud-native environments (Google Cloud, AWS, or equivalent) and modern deployment practices
• Excellent communication and interpersonal skills — capable of influencing across functions and levels
• Passion for driving innovation, tackling ambiguity, and delivering products that delight customers at scale
• Applicants must have permanent right to work in the UK
• Must be based in or within a commutable distance of London, with the ability to attend the office as needed

Experience with graph-based UIs (e.g., react-flow, litegraph.js) and data visualization libraries