Director of User Experience

Director of User Experience

Full-Time 43200 - 72000 £ / year (est.) No working from home possible
Critical Mass

At a Glance

  • Tasks: Lead a creative team to design innovative user experiences and interfaces.
  • Company: Join a forward-thinking agency that values creativity and collaboration.
  • Benefits: Enjoy competitive pay, flexible hours, and a supportive work environment.
  • Other info: Be part of a diverse team with excellent growth opportunities.
  • Why this job: Shape the future of UX with cutting-edge AI and design strategies.
  • Qualifications: 6-8 years in UX/Product Design and strong leadership skills required.

The predicted salary is between 43200 - 72000 £ per year.

As Director of User Experience, you are a leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art direction. You understand that great design extends beyond owned platforms—into the interfaces you design within third-party and media channels where you partner to maximize user engagement. You are looking to build and lead a team of UX and Product Designers who are equally fired up about creating experiences that are strategically sound, visually stunning, and genuinely innovative.

You will:

  • Lead a multi-disciplinary team of UX and Product Designers to build and test user interface and product experiences that meet or exceed customer and stakeholder expectations.
  • Guide and mentor UX and product design team members through delegating, follow-up, and coaching.
  • Champion the user’s perspective, appropriately challenging senior stakeholders when user goals are compromised, and ensure all UX and design deliverables demonstrate visual excellence and interaction elegance.
  • Build and maintain strong relationships with creative teammates, account managers, strategists, content strategists, marketing science, and producers.
  • Act as an account lead, effectively visualizing and verbalizing design ideas to clients through compelling presentations and narratives.
  • Facilitate design and brainstorming workshops with internal teams and clients, synthesizing diverse perspectives into cohesive design direction.
  • Partner with media teams and platforms to design compelling interface experiences across owned and third-party touchpoints, maximizing impact in the interface layer of social, advertising, and external platforms.
  • Lead the integration of AI design principles and tools into projects—from AI-assisted design workflows to architecting AI Agent interfaces and conversational experiences that feel natural and intuitive.
  • Develop and champion AI-influenced user experiences that leverage machine learning, predictive personalization, and intelligent automation while maintaining user agency and trust.
  • Oversee multiple high-visibility client projects, effectively pivoting between focus areas as needed.
  • Collaborate with leadership and creative leads to define, manage, and evolve the vision for the UX and Product Design discipline.
  • Lead recruiting and resourcing efforts while cultivating an effective team with diverse skill sets (UX research, visual design, interaction design, front-end development).
  • Coach direct reports to maximize their impact, professional development, and contribution to project and agency success while helping define and promote team culture.
  • Embody agency leadership values and promote culture in all interactions (internally and externally).
  • Demonstrate advanced working knowledge across visual design, art direction, motion design, front-end development, brand strategy, content strategy, and AI/machine learning principles.
  • Be recognized throughout the agency as a UX and Product Design leader sought after for strategic input.
  • Represent the agency as an ambassador at industry conferences and meetings, particularly around emerging AI design practices.
  • Contribute UX and Product Design expertise to business development and sales initiatives.

You have:

  • 6-8+ years of related industry experience in UX, Product Design, Visual Design, Digital Product, new media, information technology, communications, or adjacent creative disciplines.
  • 3+ years’ experience in a supervisory/management role leading UX/Design teams.
  • Demonstrated expertise in both UX/Product Strategy AND visual design/art direction—with a portfolio showing strong visual design sensibility across both disciplines.
  • Experience designing and optimizing user experiences across owned and third-party platforms, including social media, advertising platforms, and external partner interfaces.
  • Proven experience designing with AI in mind: both leveraging AI and machine learning as design tools and creating next-generation user experiences powered by AI.
  • Familiarity with AI Agent design patterns, conversational interfaces, and emerging paradigms like vibe-coded experiences.
  • A strategic and creative mindset, thriving at the intersection of data, design, art, and technology.
  • Exceptional storytelling and communication skills (verbal, written, and visual).
  • Excellent collaboration and interpersonal skills with strong client relations and team environment comfort.
  • Proven track record leading cross-level teams and delivering excellent user experiences for leading brands.
  • An experienced, innovative, and forward-thinking approach to large-scale projects from concept to completion.
  • Thorough, detail-oriented, and highly organized, with the ability to manage multiple projects and meet tight deadlines.
  • Flexibility and adaptability in fast-paced, changing environments.
  • Deep understanding of UX fundamentals including research, information architecture, usability testing, and their application to compelling digital experiences.
  • Advanced proficiency in design and prototyping tools (Figma, Adobe XD, Sketch, InVision, Principle, Axure).
  • Strong expertise across the Adobe Creative Suite, particularly for visual design, motion design, and art direction.
  • Experience with AI-assisted design tools and workflows.
  • Portfolio demonstrating creative problem-solving, visual excellence, and expertise across digital platforms, with demonstrated knowledge of design systems, accessibility, personalization, and emerging AI-driven systems.
  • Familiarity with WCAG 2.0 A/AA standards and accessibility best practices.

What we offer:

  • Global maternity and parental leave
  • Competitive benefits packages
  • Vacation, compassionate leave, wellness days, and flex days
  • Access to online services for families and new parents
  • Early Dismissal Fridays (off at 3:00 PM local time every Friday)
  • Diversity and Inclusion Board with 13 affinity groups
  • Internal learning and development programs
  • Enterprise-wide employee discounts

Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.

Critical Mass is an equal opportunity employer.

Director of User Experience employer: Critical Mass

At Critical Mass, we pride ourselves on being an exceptional employer that fosters a vibrant and inclusive work culture. As the Director of User Experience, you will lead a dynamic team in a fast-paced environment, with ample opportunities for professional growth and development. Our commitment to employee well-being is reflected in our competitive benefits, flexible working arrangements, and a strong focus on diversity and inclusion, making it an ideal place for innovative thinkers looking to make a meaningful impact.

Critical Mass

Contact Details:

Critical Mass Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Director of User Experience

Tip Number 1

Network like a pro! Reach out to your connections in the UX and design world. Attend industry events, webinars, or even casual meet-ups. You never know who might have the inside scoop on job openings or can refer you directly to hiring managers.

Tip Number 2

Show off your skills! Create a portfolio that not only highlights your best work but also tells the story behind each project. Make it visually appealing and easy to navigate—just like the user experiences you design!

Tip Number 3

Prepare for interviews by practising your storytelling skills. Be ready to discuss your design process, how you tackle challenges, and how you’ve led teams. Remember, it’s all about showcasing your strategic thinking and creative flair!

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive and engaged with our brand!

We think you need these skills to ace Director of User Experience

User Experience (UX) Design
Product Design
Visual Design
Art Direction
Information Architecture
Usability Testing
AI and Machine Learning Integration

Some tips for your application 🫡

Show Off Your Portfolio:Your portfolio is your best friend in this application process! Make sure it showcases your UX and visual design skills, especially any projects that highlight your experience with AI and innovative user experiences. We want to see your creative problem-solving in action!

Tailor Your Application:Don’t just send a generic application our way. Take the time to tailor your CV and cover letter to reflect the specific skills and experiences mentioned in the job description. We love seeing how you connect your background to what we’re looking for!

Be Authentic:Let your personality shine through in your written application. We’re looking for someone who can bridge strategy and creativity, so don’t be afraid to express your unique approach to UX and design. Show us who you are beyond the qualifications!

Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you’re serious about joining our team at StudySmarter!

How to prepare for a job interview at Critical Mass

Know Your UX Fundamentals

Brush up on your knowledge of UX principles, including research, information architecture, and usability testing. Be ready to discuss how these fundamentals apply to the role and how you’ve used them in past projects.

Showcase Your Design Portfolio

Prepare a strong portfolio that highlights your expertise in both UX strategy and visual design. Make sure to include examples of projects where you've integrated AI and machine learning into user experiences, as this is a key focus for the role.

Demonstrate Leadership Skills

Be prepared to talk about your experience leading teams and mentoring designers. Share specific examples of how you've guided your team through complex projects and how you foster collaboration across disciplines.

Engage with AI Design Concepts

Familiarise yourself with AI design principles and be ready to discuss how you've applied them in your work. Think about how you can leverage AI to enhance user experiences and be prepared to share innovative ideas during the interview.