9 User Interface jobs in the United Kingdom

Lead UI Designer – Part-Time Contract

Kita Education – Remote / Flexible

Kita is building the next generation of tools for Computing and AI education. We’re looking for a talented and dedicated lead UI designer to define the visual look and feel of our IDE—an opportunity to truly make your mark. Ideally, you’ll bring experience in edtech or a background in programming/Computer Science to help us refine and elevate our platform.

The role

You’ll take the work we’ve built so far, audit the current user interface, and make clear, actionable recommendations to improve navigation, usability and look and feel for teachers and students. With your understanding of how coding is taught and learned, you’ll help ensure our platform feels intuitive for both learners and educators.

What you’ll do

• Audit our existing UI design with a focus on navigation, clarity, and accessibility.
• Define colour palette based on initial brand documents
• Refine visual style guide. 
• Recommend improvements that support Computing  and classroom use.
• Create wireframes, mockups, or prototypes to illustrate changes.
• Work closely with product and dev teams to ensure recommendations are implementable.

About y ou

• Proven experience in UI design for web apps, ideally in edtech or learning platforms.
• Background in programming or understanding of IDEs (you understand how coding is taught).
• Strong grasp of navigation design, information architecture, and responsive/mobile-first design.
• Able to bridge user needs with technical implementation.

Why join us

Kita is an early-stage edtech startup backed by Innovate UK, the Department for Education and the Department for Science Innovation and Technology, working with schools and teachers to make Computing more engaging and accessible. Your design work will directly impact how thousands of students experience learning to code.

To apply, please send your portfolio and a short note about your experience to

Shortlisted candidates will be asked to complete a short design exercise which will be paid if we ask you to join the team.  Please let us know if this is not something you'll be able to do.

Senior UI Designer – Outside IR35 Contract

Location: London (Hybrid – 1 day per week on site)

Salary: Up to £500pd (outside IR35)

Contract Type: 6 month contract

The Opportunity

Our client, a global leader in financial intelligence, is looking for a Senior UI Designer to join their team on a contract basis. This is an exciting chance to be part of a business that is rethinking the way professional tools are designed and used.

You’ll play a key role in building a new design system and visual language from the ground up, directly shaping tools relied upon by investors and fund managers around the world.

What’s In It for You?

• A chance to own and influence design systems at enterprise scale
• Hybrid flexibility – only one day per week in the London office
• The opportunity to showcase your portfolio and make a tangible impact on real-world products
• Work with a talented team where design, engineering, and product work hand in hand

The Role

As Senior UI Designer, you’ll:

• Build and evolve a scalable design system with strong knowledge of design tokens
• Create well-structured, Figma files that are handover-ready for engineering
• Develop high-fidelity prototypes to support user testing and stakeholder buy-in
• Apply technical awareness when designing for frameworks such as JavaScript, Tailwind CSS, and Bootstrap
• Present a portfolio that demonstrates functional, scalable, and visually compelling interfaces

About You

We’re looking for someone who combines creativity with technical know-how. You’ll have a proven track record of delivering polished, functional user interfaces that align with brand identity while enhancing usability.

This role is perfect for a designer who wants to move beyond execution and take ownership of building a design culture within a forward-thinking business.

Interested?

If you’re a Senior UI Designer ready to take on a role where your work has real impact, we’d love to hear from you.

Apply today with your CV and portfolio and one of our consultants will be in touch.

Senior UI Designer – Outside IR35 Contract

Location: London (Hybrid – 1 day per week on site)

Salary: Up to £500pd (outside IR35)

Contract Type: 6 month contract

The Opportunity

Our client, a global leader in financial intelligence, is looking for a Senior UI Designer to join their team on a contract basis. This is an exciting chance to be part of a business that is rethinking the way professional tools are designed and used.

You’ll play a key role in building a new design system and visual language from the ground up, directly shaping tools relied upon by investors and fund managers around the world.

What’s In It for You?

• A chance to own and influence design systems at enterprise scale
• Hybrid flexibility – only one day per week in the London office
• The opportunity to showcase your portfolio and make a tangible impact on real-world products
• Work with a talented team where design, engineering, and product work hand in hand

The Role

As Senior UI Designer, you’ll:

• Build and evolve a scalable design system with strong knowledge of design tokens
• Create well-structured, Figma files that are handover-ready for engineering
• Develop high-fidelity prototypes to support user testing and stakeholder buy-in
• Apply technical awareness when designing for frameworks such as JavaScript, Tailwind CSS, and Bootstrap
• Present a portfolio that demonstrates functional, scalable, and visually compelling interfaces

About You

We’re looking for someone who combines creativity with technical know-how. You’ll have a proven track record of delivering polished, functional user interfaces that align with brand identity while enhancing usability.

This role is perfect for a designer who wants to move beyond execution and take ownership of building a design culture within a forward-thinking business.

Interested?

If you’re a Senior UI Designer ready to take on a role where your work has real impact, we’d love to hear from you.

Apply today with your CV and portfolio and one of our consultants will be in touch.

Contract Senior UI Designer - B2B News & Data - £500 per day Outside IR35

A global information and intelligence business is seeking a Senior UI Designer to play a pivotal role in building the next generation of business intelligence tools for the private equity industry. This is a unique opportunity to shape a new design language and system from the ground up, directly influencing the visual identity and user experience of professional tools used by investors and fund managers worldwide.

The Role

The Senior UI Designer will be an integral part of a forward-thinking product team, collaborating with experienced designers, researchers, and product managers. They will take ownership of developing and maintaining an enterprise-level design system, ensuring consistency and usability across a suite of data-rich, professional tools.

Key Responsibilities

• Lead the creation and maintenance of a scalable design system, including tokens and reusable components.
• Set best practices in Figma, with organised files, auto-layout mastery, and handoff-ready specs for engineering teams.
• Produce high-fidelity, interactive prototypes to support user testing and stakeholder communication.
• Ensure technical fluency by designing with an awareness of modern frameworks (e.g., JS, Tailwind CSS, Bootstrap).
• Deliver visually compelling, functional interfaces that reflect and elevate the company’s brand identity.

Your Profile

• Proven experience contributing to and maintaining enterprise-level design systems.
• Expert knowledge of Figma, including auto-layout, component structuring, and handoff workflows.
• Strong skills in prototyping and visual storytelling for stakeholder engagement.
• A solid understanding of front-end technologies, ensuring seamless translation of designs into code.
• A portfolio showcasing functional, elegant interfaces that embody brand identity.