Senior Interaction & Product Designer

As a Senior Interaction and Product Designer at TPXimpact, you will be solving problems across our priority clusters, including transforming government, health, not for profit, commercial and planning and infrastructure. You’ll work on ideas for products; creating plans, flows, prototypes, and user interfaces that are easy to use and accessible. You’ll guide teams through the process of design; setting an example, by telling powerful stories and building sustainable relationships, giving others the assurance and confidence they need.

On client projects, you’ll work as part of multidisciplinary teams, including others in DT Design and across TPXimpact as well as associates and client teams to produce high-quality work that meets the needs of users. In DT Design, you’ll play an active role in contributing to the Interaction & Product Design practice, developing our service offers and helping us achieve our missions.

Dimensions

• Individual utilisation: 90%
• Problem solving responsibility and complexity: Medium/high, contributing to project delivery and providing practice-specific support. Capable of managing ambiguity and adapting to fast-changing situations with limited guidance.
• Internal / External interactions: Support delivery and client relationships, contribute to practice growth (internal impact, sharing, blogging), contribute to business growth (bids, proposals, pitches).

About You

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 who are 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 in the right level of details (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.

Professional knowledge and experience

Essential experience

• Experience working in the public sector, whether that be 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.

Desirable experience

• 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.

Technical skills

• Frame product strategy and problem propositions in ways others can understand to guide teams and decision-making.
• Apply 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.
• Apply various dimensions of fidelity (visual, interaction, content, data, etc) appropriately to test multiple ideas and take experimental approaches to prototyping.
• Apply digital accessibility principles and standards (WCAG) across all stages, implementing testing plans that use assistive technologies (JAWS, VoiceOver, Magnifier, and Dragon).
• Audit designs for consistency, differentiate between patterns and components, and contribute to complex design systems (GOV.UK, NHS, etc).
• Demonstrate the value of prototyping in code, using tools like GOV.UK and NHS prototype kits.
• Understand, research and responsibly experiment with emerging technologies (large language models, generative AI, etc) and their impact on design practice.
• Raise issues promptly and effectively manage the escalation of problems that have a wider scope than your team.
• Own your learning and development while running internal initiatives to deepen the knowledge of others.
• Collaborate effectively with others and engage sceptics on the value of design.

About Us

People-Powered Transformation. We're a purpose driven organisation, supporting organisations to build a better future for people, places and the planet. Combining vast experience in the public, private and third sectors and expertise in human-centred design, data, experience and technology, we’re creating sustainable solutions ready for an ever-evolving world.

At the heart of TPXimpact, we’re collaborative and empathetic. We’re a team of passionate people who care deeply about the work we do and the impact we have in the world. We know that change happens through people, with people and for people. That’s why we believe in people-powered transformation.

Working in close collaboration with our clients, we seek to understand their unique challenges, questioning assumptions and building in their teams the capabilities and confidence to continue learning, iterating and adapting.

Benefits Include:

• 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

About TPXimpact - Digital Transformation

We drive fundamental change in approaches to product and service development, delivery and technology. Our agile, multidisciplinary teams use technology, design and data to deliver better results, improving outcomes for individuals, organisations and communities.

By working in the open, in partnership with our clients, we not only transform their systems and services but also build the capability of their teams, so work can continue without us in the longer term. Our focus is sustainable change, always delivered with positive impact.

We are committed to having a positive impact on the clients and the communities we serve. We actively encourage applications from all genders, ethnicities, disabled people, members of the LGBTQIA+ community, and those from lower socio-economic backgrounds.

Don’t meet 100% of the criteria? We still want to hear from you. Please let us know if you require any adjustments during the recruitment process.