Senior User Experience Designer

Fynity; Leeds; On-site; GBP 52,000 - 64,000; Full time

Job summary

Fynity is a growing, employee-owned digital agency in Leeds seeking a Senior UX/UI Designer to own UX and UI across client websites, blending research-led UX with polished interface design.

You’ll lead discovery, user journeys, IA, wireframes, prototypes and design systems, collaborate with designers and developers, communicate UX thinking to clients, mentor others and help shape how the agency approaches UX/UI as it grows.

Qualifications

• Proven UX/UI experience with a strong portfolio across websites.
• Experience leading discovery, user research and stakeholder workshops.
• Strong Figma capability with scalable design systems.
• Hands-on UI craft and ability to lead design from discovery to handover.
• Knowledge of accessibility and responsive design principles.

Responsibilities

• Lead UX/UI workstreams across website projects from discovery through delivery.
• Plan and contribute to discovery, user research and stakeholder engagement.
• Create customer journeys, user flows, sitemaps and IA.
• Produce wireframes and interactive prototypes to define functionality.
• Design polished, responsive and accessible interfaces.
• Translate insights into intuitive experiences and scalable patterns in Figma.
• Collaborate with developers to ensure feasible implementations and quality QA.
• Prepare detailed handovers and support design QA.
• Communicate UX thinking clearly to clients and stakeholders.
• Identify opportunities to improve usability, conversion and CX.

Skills

UX design

UI design

User research

Information architecture

Wireframes

Prototyping

Design systems

Figma

Accessibility

Collaborating with developers

Mentoring

Webflow

A/B testing

GA4 / analytics tools

HTML / CSS familiarity

Tools

Figma

Webflow

GA4

Hotjar

Microsoft Clarity

HTML

CSS

Job description

Salary: Up to £58,000 (DOE) + discretionary bonus

The opportunity

We’re looking for a Senior UX/UI Designer to join the design team within a growing, employee-owned digital agency.

This is a specialist UX/UI role with a strong focus on web, rather than a general digital or graphic design position. The role is weighted approximately 60% towards UX and 40% UI, combining research-led UX thinking with polished interface design to create user-centred digital experiences across a varied portfolio of websites.

You’ll take ownership of UX/UI across significant client projects, working from discovery, research and early-stage definition through to customer journeys, information architecture, wireframes, prototypes, high-fidelity interface design, developer handover and quality assurance.

Alongside hands-on project delivery, you’ll have scope to influence UX processes, introduce new ideas and best practices, support other designers and help shape how the agency approaches UX/UI as the capability continues to grow.

You’ll join a collaborative, values-driven environment with a strong emphasis on quality, ownership and continued development.

What you’ll be doing

As a Senior UX/UI Designer, you’ll take ownership across a variety of client website projects and ongoing retainers, collaborating closely with designers, developers, project managers and client teams.

Key responsibilities include:

• Leading UX/UI workstreams across website projects from discovery through to delivery
• Planning and contributing to discovery, user research and stakeholder engagement
• Creating customer journeys, user flows, sitemaps and information architecture
• Producing wireframes and interactive prototypes to define functionality and user behaviour
• Designing polished, responsive and accessible digital interfaces
• Translating research, behavioural insight, business requirements and technical considerations into intuitive digital experiences
• Building and evolving scalable design systems, components and reusable patterns in Figma
• Working closely with developers to ensure solutions are technically achievable and implemented effectively
• Preparing detailed developer handovers and maintaining quality through design QA
• Working directly with clients, confidently communicating UX thinking and the rationale behind design decisions
• Using analytics, research and user behaviour to identify opportunities around usability, conversion and customer experience
• Helping improve internal UX/UI processes, standards and ways of working
• Sharing knowledge and supporting the development of less experienced designers

What we’re looking for

• Strong commercial experience specialising in UX/UI and web design at Senior level
• Experience designing a variety of different types of websites across multiple clients, audiences or industries
• A strong portfolio demonstrating the full UX process alongside high-quality UI execution
• Strong research-led UX capability, including customer journeys, user flows, information architecture, wireframing and prototyping
• Experience conducting or leading user research, usability testing, discovery or stakeholder workshops
• Strong Figma capability, including components, auto layout, prototyping and scalable design systems
• Strong responsive web and interface design experience across desktop and mobile
• Good understanding of accessibility and inclusive design principles
• Experience working closely with developers throughout design, handover and implementation
• Confidence working directly with clients and communicating the rationale behind design decisions
• Experience taking ownership of complex projects and managing multiple workstreams
• Ability to contribute to UX/UI best practice and help improve internal design processes
• Digital agency experience, or experience within a similarly varied client environment, highly beneficial
• Experience mentoring or supporting other designers
• Experience with Webflow
• Conversion rate optimisation, experimentation or A/B testing
• Familiarity with GA4, Hotjar, Microsoft Clarity or similar tools
• Experience facilitating workshops and moderated usability testing
• Familiarity with HTML and CSS
• Experience working on content-rich, service-led or lead-generation websites

About you

You’re an experienced UX/UI Designer who enjoys understanding complex user and business problems before defining the solution.

You’re particularly strong on UX and comfortable leading work from discovery and research through to customer journeys, information architecture, wireframes and prototypes, while retaining the UI craft needed to turn that thinking into polished, engaging digital experiences.

You enjoy the variety of agency work and the opportunity to solve different problems across different clients and types of websites. You’re confident taking ownership, working directly with clients and collaborating closely with developers and other designers.

You’ll also enjoy having the opportunity to influence beyond your own projects, bringing ideas and experience into the team, improving processes, sharing knowledge and helping shape UX/UI best practice as the agency’s website capability continues to grow.