Senior Product Designer (Growth)

We're looking for a Senior Product Designer to turn complex problems into simple experiences. Join a fast-moving team where ownership, clarity and customer impact matter.

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 and delivery, in a way that stays repeatable and legible to the team

• Take part in our research and evidence practice. We run concept, usability and comprehension testing across the team, and you'll help plan and run studies, then turn findings and product and behavioural data into design decisions

• Design in a regulated context, with a strong bias toward clarity, fair treatment and customer comprehension

What We’re Looking For

• 5+ years of experience designing digital products as a Product Designer or UX/UI Designer, with a strong portfolio demonstrating end-to-end ownership of complex product experiences.

• Strong product design craft, spanning interaction design, systems thinking and end-to-end journey ownership

• Comfortable being hands-on with research. You're happy to get stuck into user research as part of the role, with our support, and you make design decisions from evidence rather than opinion

• Data-driven design. You use product and behavioural data, along with experiment results, to frame problems, prioritise and prove that designs actually work

• High ownership and autonomy, comfortable operating as a senior contractor, clarifying ambiguity and driving work forward

• Excellent collaboration, working as a partner to Product and Engineering rather than a service desk

• Pragmatic judgement on quality versus speed, knowing where polish matters most

• Comfort working within a design system and contributing to it

• Comprehension-first, fair-treatment mindset. You design for genuine customer understanding, not just usability. Experience in a regulated environment such as financial services, insurance, healthcare, gambling or utilities is a strong advantage, but what matters most is that you can clearly evidence this mindset, whether or not it comes from regulated work

• English fluency (C1 level and above) — we are a UK-based company, and the role involves regular communication with the team

Nice to Have

• Experience with growth experimentation and funnel optimisation

• Strong prototyping skills for quick validation

• Prior experience operationalising AI in team workflows, beyond personal use

• Fintech or investing-domain experience specifically. Regulated experience is a strong advantage, and the sector itself is a bonus

How We Work

We’re a lean, fast-moving team that values clarity, ownership, and transparency. You’ll have the freedom to experiment, the responsibility to follow through, and the backing of a team that values clear thinking and open dialogue. We believe in solving problems at the root, not just treating the symptoms.

What We Offer

• Impact from day one

• You’ll take on meaningful work from the start, tackling real challenges that drive the stability, efficiency, and growth of our business.

• Room to grow

• As we scale, you’ll have opportunities to expand your responsibilities, influence how we work, and help shape our long-term direction.

• Transparent and open culture

• We share decisions openly, keep communication channels clear, and encourage collaboration across every part of the business.

• Supportive, high-calibre team

• Work alongside talented professionals who are experts in their fields — smart, driven, and generous with their knowledge.

• Remote first and flexible

• Work in the way that best suits you. We focus on results, not rigid hours, and trust you to manage your time effectively.

Our Hiring Process

• Introductory call with our Talent team

• Gamified cognitive assessment to understand how you think and problem-solve

• Competency interview focused on your experience in operational risk and controls (may include a short task or case study)

• Senior leadership interview to explore alignment with our culture, values, and strategic direction