Senior UI/UX Designer - Contract

Avanti Recruitment; City Of London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A London-based software company is seeking a Senior UI/UX Designer to enhance mobile experiences for key applications. The role involves designing efficient user workflows and maintaining a structured Figma design system. Ideal candidates will have experience with B2B mobile designs, strong Figma skills, and a focus on simplifying complex processes. This is an onsite position in London with a contract covering the critical build and testing phase.

Qualifications

• Experience designing mobile products for B2B or operational user groups.
• Strong Figma skills and experience with reusable components.
• Background in workflow-led or data-driven applications.

Responsibilities

• Design and enhance mobile journeys for iOS and Android.
• Create clear, efficient workflows for users.
• Work closely with product and engineering teams.

Skills

Mobile product design

Strong Figma skills

Workflow-led applications experience

User experience simplification

Tools

Figma

Job description

Senior UI/UX Designer - Contract

We are working with a London-based software company on a key hire for their product team. They are looking for a Senior Product Designer to take ownership of the mobile experience across two core apps used by professional users in operational environments.

The role involves simplifying complex workflows, ensuring reliability in real-world use, and aligning the mobile product with a wider platform ecosystem.

You will:

• Design and enhance mobile journeys for iOS and Android
• Create clear, efficient workflows for users who rely on the product day‑to‑day
• Work closely with product and engineering teams to deliver iterative improvements
• Develop and maintain a structured design system in Figma

You will need:

• Experience designing mobile products for B2B or operational user groups
• Strong Figma skills and experience with reusable components or design systems
• Background in workflow‑led or data‑driven applications (not consumer lifestyle apps)
• Ability to clarify and simplify multi‑step processes and decision paths

This is a fully onsite role in London, five days per week, working in a collaborative and fast‑paced environment. The initial contract duration covers the critical build and testing phase.

If you feel this aligns with your background, please share your CV and portfolio.