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Fonoa

Senior/Staff Frontend Engineer

Fonoa

Frontend Engineer specializing in creating intuitive experiences for Fonoa's products. Collaborating with teams to scale frontend architecture and design systems in a hybrid work environment.

Posted 5/21/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

About the role

Key responsibilities & impact
  • Redesign and evolve product experiences across customer-facing and internal platforms
  • Help define and scale our frontend architecture, patterns, and design systems
  • Build fast, reliable, and intuitive user experiences across web applications
  • Collaborate closely with product, design, and engineering to shape new workflows and features
  • Contribute to the visual identity and frontend standards of the platform
  • Help evolve Fonoa from an API-first company into a broader platform experience
  • Build interfaces that support intelligent, assistant-like, and agent-driven workflows
  • Continuously improve frontend quality, performance, maintainability, and developer experience
  • Mentor and influence frontend standards and practices across the engineering organisation

Requirements

What you’ll need
  • Strong experience building high-quality frontend applications and product experiences
  • Deep understanding of frontend architecture, state management, performance, and scalability
  • Strong product and design instincts, with attention to detail and usability
  • Ability to collaborate closely with designers and product teams from concept to production
  • Experience designing and evolving frontend systems and reusable component libraries
  • Builder mentality with high ownership and strong product thinking
  • Comfortable operating in ambiguity and shaping problems, not just implementing requirements
  • Strong communication and collaboration skills in cross-functional environments
  • Curiosity around AI-driven interfaces and how intelligent workflows change product experiences

Benefits

Comp & perks
  • Ownership – engineers own what they build end-to-end
  • Simplicity – we break down complex problems into clear solutions
  • Thinking Big - we innovate with modern technologies (LLMs, AI Agents, etc.) to solve meaningful problems
  • Quality – scalable, maintainable systems are non-negotiable
  • Speed & iteration – we ship fast, learn, and improve continuously
  • Collaboration – we win as a team, not as individuals

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
frontend developmentfrontend architecturestate managementperformance optimizationscalabilitycomponent librariesuser experience designvisual identityAPI-first designweb applications
Soft Skills
collaborationcommunicationattention to detailproduct thinkingownershipcuriositymentorshipproblem-solvingadaptabilitycross-functional teamwork