Senior UI Designer

Quantum; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A dynamic digital comparison service in Greater London is seeking a Senior UI Designer to lead visual excellence across its brands and platforms. In this role, you'll collaborate with cross-functional teams to create engaging interfaces while mentoring others. The ideal candidate will have at least 5 years of digital product design experience and expertise in tools like Figma, HTML5, and CSS. A competitive salary and benefits such as private health care and training programs are offered.

Benefits

Competitive Base Salary

Company Bonus Scheme

Private Health Care (Bupa)

Travel Insurance

Market Leading Training Programme

Free Coffee Drinks & Snacks

Qualifications

• 5 years of UI / digital product design experience.
• Expert in Figma and design system development.
• Strong understanding of front-end principles.

Responsibilities

• Lead visual design for mobile-first websites.
• Manage scalable design systems and UI libraries.
• Translate user needs into polished UI solutions.

Skills

CSS

Figma

HTML5

Responsive Web Design

InVision

Sketch

Usability

Information Architecture

iOS

UX

Job description

Our Company

At Quantum we connect global brands with high‑intent consumers. We turn intent into action and complexity into clarity.

Our Mission is clear to help smarter faster buying decisions. Our vision to be the worlds most used digital comparison service delivering value and simplicity to millions.

We drive growth through data‑driven affiliate marketing built for performance from day one. Every campaign is measurable optimised in real time and designed to scale.

With in‑house tech full‑stack analytics and a compliance‑first mindset we give our partners an edge. We drive confident decisions and growth in regulated and high‑growth sectors. Weve helped ambitious brands grow faster smarter and globally.

The Role

As Senior UI Designer you will be the guardian of interface excellence across our brands and platforms. Working across websites landing pages tools and marketing environments your mission is to lead the visual evolution of our digital products while mentoring and inspiring the wider team.

Youll collaborate closely with product managers UX designers developers and marketers to bring data‑informed intuitive and engaging interfaces to life. This is a hands‑on role where youll lead by doing applying your design craft while creating systems sharing knowledge and helping establish design standards as we grow.

Key Responsibilities

• Lead visual design for mobile‑first websites landing pages and product UIs across QiH brands.


• Develop and manage scalable design systems and UI libraries that ensure consistency across products while supporting rapid testing and iteration.


• Translate strategic goals user needs and data insights into polished usable and conversion‑led UI solutions.


• Collaborate with Product UX development and marketing teams to deliver cohesive end‑to‑end journeys.


• Uphold consistency accessibility and best practices across all outputs.


• Act as a design leader and mentor to the wider team offering regular feedback guidance and support.


• Contribute to the evolution of design processes and documentation.


• Help champion a culture of design by data collaboration and continuous learning.


• Stay ahead of UI trends tools and technologies and bring fresh thinking to the team.

What We’re Looking For

• 5 years of UI / digital product design experience in a fast‑paced digital‑first environment.


• Proven ability to lead UI work across multiple projects and stakeholders.


• An inspiring portfolio demonstrating excellence in UI design including mobile‑first responsive web and conversion‑led design.


• Expert in Figma and design system development.


• Strong understanding of front‑end principles (you dont need to code but you need to collaborate).


• Experience working with UX product and development teams in agile environments.


• A mentors mindset you love helping others grow and build confidence in their craft.


• Excellent communication presentation and problem‑solving skills.


• A proactive adaptable attitude and collaborative spirit.

Key Skills

• CSS


• InVision


• Balsamiq


• HTML5


• Information Architecture


• Ux


• Usability


• UI


• IOS


• Figma


• Responsive Web Design


• Sketch

Nice to Have

• Experience in performance marketing iGaming or fintech.


• Familiarity with creative automation tools (Bannerflow).


• Knowledge of accessibility standards (WCAG).


• Experience leading or supporting rebrand or product redesign initiatives.


• Light prototyping and motion design (e.g. Principle After Effects).

What You’ll Get

• Competitive Base Salary.


• Company Bonus Scheme.


• Private Health Care (Bupa).


• Travel Insurance.


• Market Leading Training Programme.

Recognition & Reward Scheme

• Annual Company Conference (previous destinations Vienna Bologna Dubrovnik and Thessaloniki).


• Regular Happy Hour / Team Lunches.


• Free Coffee Drinks & Snacks.

Whats the next step

Our hiring process ensures were recruiting the right people for the role. We ensure that people are as suitable for us as we are for them.

If you like the sound of what were all about at Quantum and want to join a team where you can make an impact please apply or contact us at