Senior Product Designer (Growth)

About InvestEngine InvestEngine is everything the modern investor should need. Unbeatable value, market-leading automation, and built for easy, long-term investing. We’ve built a strong foundation, have over £3 billion invested, award-winning service, and a passionate team, now we’re ready to scale. About the Role We are hiring a Senior Product Designer to join our Growth stream and help deliver consistently high-quality product design work at pace. This is a hands-on IC contract role. The core expectation is simple: deliver build-ready design with low churn . Especially on our highest-priority, higher-risk customer journeys, that means getting work to a confident, build-ready state with minimal rework, through strong upfront clarity, solid collaboration and good judgement. You'll work closely with Product and Engineering day to day, and partner with Design on standards, craft and our evolving Design System What You’ll Do Own design work end-to-end in the Growth stream, from early framing through to build-ready delivery and iteration after release Produce clear, implementation-ready design output such as flows, states, edge cases, content and acceptance criteria, so engineering has less back-and-forth Collaborate closely with Product and Engineering to clarify problems early and avoid late-stage rework Contribute to Design System usage and consistency through your delivery, reusing and improving patterns where needed Use AI as part of your workflow to accelerate exploration a