Senior Interaction & Product Designer

November 7, 2026

Senior

London, United Kingdom

Indeed

Description

A senior-level interaction and product design role focused on solving problems across government, health, not-for-profit, commercial and infrastructure sectors. The designer creates plans, flows, prototypes and accessible user interfaces, guides teams through the design process, and contributes to practice and business growth. The role works within multidisciplinary client teams, shaping product strategy, design patterns and sustainable client relationships.

Responsibilities

Developing strategy — zooming out to see the bigger picture, identifying interaction design opportunities and navigating ambiguity to shape product strategy aligned with long-term goals
Framing problems as hypotheses to test, prioritising them based on risk and building shared understanding, especially with clients or stakeholders earlier in their digital maturity
Testing assumptions — generating multiple ideas, establishing metrics to measure success and guiding the team to respond to evidence-based insights
Creating prototypes — using technical knowledge at the right level of detail (paper, clickable, or code) and testing ideas with users to influence decision-making
Designing for accessibility — leading inclusive design from start to finish across discovery, alpha and beta, and implementing comprehensive accessibility testing plans
Establishing design patterns — auditing designs for consistency, effectively using existing design systems, reducing complexity and technical debt
Working with developers — bridging the gap from user needs to tech implementation, communicating design intent clearly to translate designs into working software
Communicating design decisions — telling the compelling story of our work and impact, and consistently presenting yourself in a confident and effective manner in complex project environments
Elevating capabilities — actively mentoring others, providing proactive and actionable feedback, fostering an inclusive team culture
Driving practice growth — actively sharing knowledge with wider audiences and strategically managing your time to deliver value while supporting bids, proposals or pitches

Requirements

Experience working in the public sector, whether central, local government, health or charities
Defining product design strategy, problem framing and propositions as well as managing assumptions and using hypothesis-driven approaches to support long-term goals
Creating and designing prototypes using a mix of methods (paper, clickable and code) to test hypotheses and drive decision-making throughout different stages of design
Designing inclusively, applying accessibility standards and using assistive technologies in testing to design solutions that work for everyone
Bridging the gap to technology by collaborating with developers in technical or complex programmes, translating design into working software and actively reducing technical debt
Working with ambiguity to build shared understanding, effectively engaging stakeholders and building digital maturity
Establishing metrics to rigorously evaluate design success and foster a culture of continuous improvement
Identifying skill gaps to mentor and elevate others in the team, fostering inclusive team cultures
Navigating complexity, knowing when and how to escalate wider issues and working effectively through blockers
Telling the story of our work and inspiring a design community environment, increasing engagement and knowledge sharing while making space for everyone to contribute equally
Strategically managing time to deliver maximum value to our clients and their users while actively contributing to practice and business growth
Confidence using co-design approaches to bring different people together, including users and stakeholders
Line managing other designers to support their development and growth
Co-developing and running formal learning activities or training sessions to increase the skills and confidence of our clients and staff
Framing product strategy and problem propositions in ways others can understand to guide teams and decision-making
Applying information architecture, micro-interaction, design systems and graphic/visual design principles (composition, typography, layout, etc) to create high quality designs that developers can easily interpret
Applying various dimensions of fidelity (visual, interaction, content, data, etc) appropriately to test multiple ideas and take experimental approaches to prototyping
Applying digital accessibility principles and standards (WCAG) across all stages, implementing testing plans that use assistive technologies (JAWS, VoiceOver, Magnifier, and Dragon)
Auditing designs for consistency, differentiating between patterns and components, and contributing to complex design systems (GOV.UK, NHS, etc)
Demonstrating the value of prototyping in code, using tools like GOV.UK and NHS prototype kits
Understanding, researching and responsibly experimenting with emerging technologies (large language models, generative AI, etc) and their impact on design practice
Raising issues promptly and effectively managing the escalation of problems that have a wider scope than your team
Owning your learning and development while running internal initiatives to deepen the knowledge of others
Collaborating effectively with others and engaging sceptics on the value of design

Conditions

30 days holiday + bank holidays
2 volunteer days for causes that you are passionate about
Maternity/paternity – 6 months Maternity Leave, 3 months Paternity Leave
Life assurance
Employer pension contribution of 5%
Health cash plan
Personal learning and development budget
Employee Assistance Programme
Access to equity in the business through a Share Incentive Plan
Green incentive programmes including Electric Vehicle Leasing and the Cycle to Work Scheme
Financial advice
Health assessments
Individual utilisation KPI of 90%
Working as part of multidisciplinary teams on client projects

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