Sr. UX Designer

McKesson; Greater London; On-site; GBP 80,000 - 120,000; Full time

Job summary

Clar usONE is seeking an experienced UX/Product Delivery lead to shape the user experience of the ClarusONE platform. You will partner with product managers, engineers and designers to translate research into intuitive digital experiences and guide AI-powered features.

The role requires 7+ years of relevant experience in UX/research and a strong ability to advocate for users through evidence-based decisions. A senior leadership context offers collaboration across functions and ongoing impact.

Qualifications

• Conduct user research using interviews, surveys, and observations to guide product direction.
• Translate research into personas and journey maps with actionable design recommendations.
• Create wireframes, flows, and prototypes that follow usability and accessibility standards.
• Apply UX design principles and accessibility best practices across features.
• Lead usability testing, analyze results, and iterate designs based on evidence.
• Collaborate with product, engineering, and UI teams in agile settings.

Responsibilities

• Own quantitative research programmes to understand user needs and pain points.
• Generate wireframes, user flows, and prototypes translating research into intuitive experiences.
• Design UX for AI-powered features within the software roadmap.
• Plan and run usability tests to evaluate design effectiveness.
• Collaborate with product managers, developers and UI designers to implement UX requirements.
• Produce UX documentation, journey maps, and research summaries.
• Communicate design rationale to stakeholders and promote user-centred practices.

Skills

User research

Personas & journeys

Wireframes & prototypes

UX design principles

Usability testing

Cross-functional collaboration

Education

Degree or equivalent

Tools

Figma

Sketch

Adobe XD

Job description

The highly competitive US generic pharmaceutical sector continues to challenge every element of the supply chain.In this constantly changing environment, patients can be served through multiple channels in new & different ways, whilst those that dispense prescriptions, the wholesale distributors that supply them and manufacturers all have to react and respond to how the sector is evolving, which is also heavily influenced by payers, regulatory bodies and federal & state law.To succeed in this environment requires organisations to adapt and change and, at ClarusONE, we play a key role in working alongside multiple stakeholders to deliver the most efficient supply chain model whilst generating value for our Members, their customers and patients through innovative sourcing solutions.

The ClarusONE proprietary sourcing platform is key to enabling innovation across the sourcing model.The purpose of this role is to ensure that the strategic product delivery team builds technology solutions that genuinely meet the needs of the differing user groups of this platform. Working alongside the product managers, this role is key to shaping the product direction by commissioning and managing dedicated user research which, via user journeys, delivers a clear set of design requirements. In addition, this role acts as the ‘voice of the user’, providing insights into user behaviours, pain points, and expectations, making sure that development decisions are grounded in evidence rather than assumptions.

Key Responsibilities

• Owns the quantitative research programmes used to understand user needs, behaviours, and pain points, utilising methods such as interviews, surveys, and observations to gather insights that guide product direction and ensure user‑centred decision‑making.

• Responsible for generating the wireframes, user flows, and prototypes that translate the research findings into intuitive digital experiences. This means ensuring all product and/or feature designs follow usability principles, accessibility standards, and align with the overall product vision.

• As part of the wider digital and data science roadmap, will lead the design of user experiences in the software that enable machine learning and AI powered features.

• Will own the planning and execution of usability tests to retrospectively evaluate design effectiveness and identify areas for future improvement.

• Will collaborate closely with product managers, software engineers, and UI designers to ensure that user experience requirements are clearly defined, technically feasible, and accurately implemented throughout the development process.

• Owns the ongoing production of UX documentation, design specifications, journey maps, and research summaries.

• Alongside the Director, Strategic Product Delivery, will regularly communicate to a variety of stakeholders, promoting design rationale and advocating for user‑centred practices across the organisation.

Minimum Requirement

Degree or equivalent and typically requires 7+ years of relevant experience.

Critical Skills

• Proven experience conducting user research using interviews, surveys, observational studies, and usability evaluations

• Strong ability to translate research insights into personas, journey maps, and actionable design recommendations

• Hands‑on experience creating wireframes, prototypes, and user flows using tools such as Figma

• Solid understanding of UX design principles, usability heuristics, and accessibility standards

• Demonstrated ability to run usability tests, analyse results, and iterate designs based on evidence

• Experience collaborating with product managers, developers, and UI designers in agile or cross‑functional teams

Additional Knowledge & Skills

• Strong communication skills for presenting research findings, design rationale, and recommendations to stakeholders.

• Ability to work with data analytics (e.g., heatmaps, behavioural analytics, conversion metrics) to support UX decisions.

• Familiarity with information architecture, content structure, and interaction patterns across digital platforms.

• Familiar with the implementation of AI and machine learning applications within a software platform, including relevant efficacy testing, oversight and governance requirements and familiarity with Sketch, or Adobe XD

• Problem‑solving mindset with the ability to balance user needs, technical constraints, and business objectives.