Senior Product Designer - Clerkenwell, City of London (EC1), EC1M 6PB

Join a forward-thinking UK energy provider focused on sustainable solutions. We're looking for a Senior Product Designer to shape and enhance key customer experiences across digital journeys, designing clear, intuitive, high-quality interactions across web and mobile that help customers complete important tasks with ease and confidence.

This is a senior, hands-on role for someone with strong end-to-end product design expertise who thrives in complex environments and can move quickly from defining problems to delivering polished solutions. The role is an initial six-month contract (with potential extension), full-time (37 hours/week), with a hybrid model (one day every two weeks in the London office).

Key Responsibilities

• Own the design of customer-facing journeys from discovery through to final UI
• Translate complex service challenges into intuitive, accessible experiences
• Collaborate cross-functionally with product, research, content, engineering, and business teams
• Deliver interaction design, user flows, wireframes, and high-fidelity UI
• Influence product direction through problem framing, ideation, and prioritisation
• Balance customer needs with business and operational feasibility
• Use data, insights, and testing to continuously improve usability
• Ensure consistency across end-to-end journeys
• Contribute to and evolve design systems and patterns
• Champion accessible, inclusive, and consistent design standards
• Enable rapid iteration while maintaining high-quality design craft

Skills & Experience

• Extensive senior-level product design experience across complex digital products
• Strong portfolio covering both mobile apps and responsive web
• Proven ability to simplify complex or regulated journeys
• Expertise in UX, interaction design, and visual execution
• Skilled in journey mapping, flows, and information architecture
• Comfortable working in ambiguity and shaping solutions with cross-functional teams
• Data-informed approach using user research and usability testing
• Strong balance of pace, quality, and commercial priorities
• Excellent communication skills with the ability to explain design decisions clearly
• Self-starter who delivers impact quickly
• Utilities, energy, or similarly complex service-led industries
• Experience across account management, service tools, billing, payments, onboarding, loyalty, and self-service journeys
• Working within regulated environments with accessibility standards
• Experience contributing to or working within established design systems

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.