Staff Product Designer — AI‑Powered Tax OS Architect

Fonoa; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Fonoa is seeking a Staff Product Designer to shape the future of its AI-native Tax Operating System. You will design new AI-powered products and experiences, simplifying complex tax workflows and elevating the design system from the ground up.

Join a high-caliber team across Design, Product, Engineering, and Tax to influence product direction, craft, and execution. This is a Staff IC role reporting to the Head of Design.

Qualifications

• Deep focus on interaction design, visual quality, motion, and details that feel effortless.
• Ability to design both individual experiences and overall product architecture.
• Experience creating or evolving scalable design systems.
• Built or shaped complex B2B, fintech, developer, or infra products.
• Interest in AI-native experiences that solve real customer problems.

Responsibilities

• Shape the next generation of Fonoa by designing AI-powered products for the Tax Operating System.
• Own products end to end from problem framing to launch.
• Simplify complex tax workflows into intuitive experiences customers trust.
• Think in systems to design scalable foundations and contribute to the design system.
• Collaborate across Product, Engineering, AI, Tax, and User Research.
• Raise the quality bar with exceptional craft and thoughtful execution.

Skills

Exceptional product craft

Systems thinking

Design systems

Complex product experience

AI curiosity

Strong portfolio

Collaborative mindset

Job description

Fonoa is seeking a Staff Product Designer to shape the future of its AI-native Tax Operating System. You will design new AI-powered products and experiences, simplifying complex tax workflows and elevating the design system from the ground up.

Join a high-caliber team across Design, Product, Engineering, and Tax to influence product direction, craft, and execution. This is a Staff IC role reporting to the Head of Design.