Lead UX/UI Designer (12‑month maternity cover)

About the role

Lead UX/UI Designer on a fixed‑term, 12‑month maternity cover contract, based in London with a hybrid work model. Delta Capita, a global provider of managed services and technology for financial services, is seeking an experienced, hands‑on designer to own the end‑to‑end design of complex, multi‑stakeholder products.

Key responsibilities

• Own complex projects end‑to‑end, taking full design accountability from discovery through to final UI specifications.
• Design and prototype interactive solutions using Sketch, creating testable prototypes to validate concepts with users and stakeholders.
• Run and facilitate workshops across teams and features to drive strategic alignment.
• Maintain and evolve the design system, extending component libraries and standards for consistency, accessibility and reusability.
• Support junior designers by setting direction, reviewing work, running critique sessions and ensuring timely delivery.
• Partner closely with product managers and engineers to shape requirements and ensure faithful implementation.
• Deliver at pace by breaking large problems into shippable increments and maintaining momentum across parallel workstreams.
• Uphold accessibility and quality standards, ensuring designs meet WCAG 2.2 AA criteria before handover.

Required profile

• Proven track record as a lead UX/UI designer with a portfolio demonstrating ownership of large‑scale digital products.
• Advanced working knowledge of Sketch, including symbols, libraries and shared styles.
• Strong prototyping ability, quickly turning concepts into interactive prototypes.
• Experience mentoring or line‑managing junior designers.
• Confident collaboration with product managers, engineers, business stakeholders and, where relevant, clients.
• Evidence of delivering high‑quality work at speed in an agile environment.
• Excellent communication skills, able to explain and defend design decisions to non‑designers.
• Right to work in the UK (no visa sponsorship available).

Required skills

• Sketch
• WCAG 2.2 AA accessibility standards