Lead User Experience Designer

4 Months ago • 3-5 Years • UI/UX Design

Job Summary

Job Description

Lead UX Designer needed at Critical Mass in London. 3+ years of experience in UX and proven ability to create impactful user experiences are required. You'll be leading the design of features, collaborating with teams, and guiding projects from concept to completion.
Must have:
  • UX Design
  • User Research
  • Wireframing
  • Prototyping
Good to have:
  • Information Architecture
  • Usability Testing
  • Content Strategy
  • Visual Design
Perks:
  • Team Culture
  • Hybrid Model

Job Details

Critical Mass are looking for a Lead UX Designer to come and join the London team! 

As a Lead User Experience (UX) Designer, you’ll be the visionary shaping the digital journeys of our clients’ products. Leveraging your exceptional UX and analytical skills, you’ll bring ideas to life, guiding them from concept through to execution. You’ll collaborate closely with your team, navigate ambiguity with confidence, and expertly balance priorities to meet and exceed goals on time.

While focusing on one client allows you to dive deep and deliver outstanding work, you’ll also have the opportunity to showcase your skills across other accounts. With your passion and determination, you’ll lead the creation of impactful UX deliverables—crafting wireframes, interactive prototypes, user flows, site maps, and usability test plans that bring products to life. Whether you’re owning multiple small-to-medium features or spearheading a major feature from start to finish, you’ll thrive on the challenge, delivering excellence with your attention to detail and expertise. Ready to make a real impact? This is your chance!


You Will: 

  • Design holistic systems, flows, and interfaces that are simple, elegant, and beautiful through detailed wireframes, visual compositions, and prototypes that communicate design intent, and client and user feedback.
  • Provide guidance, leadership, and support to other UX designers and the project team. 
  • Lead discussions with stakeholders regarding feature design, using an organised and methodical approach.
  • Balance creative requirements with client business requirements.
  • Manage time effectively and execute according to commitments.
  • Apply a critical lens to your work and the work of others in service of the solution.
  • Demonstrate team orientation and build rapport with creative teammates, strategists, content strategists, marketing science, and producers.
  • Clearly articulate complex ideas to both the internal team and client.
  • Anticipate upcoming client and team needs, identify risks, and mitigate appropriately.
  • Lead the design of a large feature or group of small-to-medium features with limited input from the Director of UX.
  • Continuously seek to be well-informed regarding new software and design concepts.
  • Understand the process of business development, and lead aspects of pitch creation in alignment with the overall sales story.
  • Contribute to team culture by acting as a coach and mentor to junior team members, modelling the behaviours and characteristics of a CM leader. 
  • Be actively engaged with colleagues both within and outside of teams, promoting collaboration and inclusion. 

You Have: 

  • 3-5 years of related industry experience in UX
  • 2-4 years of experience in the role of senior UX designer or equivalent role.
  • Effective communication skills, both orally and in a variety of written and diagrammatic forms.
  • Proven interpersonal skills, client relation skills, and ability to work in a team environment.
  • Experienced, innovative and forward-thinking mindset with demonstrated leadership of projects from concept to completion. 
  • Thorough, detail-oriented, and highly organized working style with the ability to multi-task and meet tight deadlines.
  • Flexibility and adaptability to fast-paced and changing environments.
  • A deep appreciation and understanding of user experience including research, information architecture, usability testing, and applying it to create compelling digital experiences.
  • Portfolio of work demonstrating creative thinking, problem solving, process, and quality spanning various digital platforms.
  • Demonstrated expertise and experience with process and business analysis, software development and project processes large scale projects, documentation for development teams, application of content management, personalisation, targeting and search systems, and modular design systems.

    The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible!  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 4 days a week.  The ask stems from our want to:

    Strengthen opportunity for continuous learning

    Improve collaboration and team relationships.

    Increase employee engagement

    This hybrid model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM.  We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.

      

 

Similar Jobs

ION - Senior Business Analyst, Italy

ION

Italy (Hybrid)
4 Months ago
Alphasense - Principal People Systems Analyst

Alphasense

Ireland (Remote)
1 Month ago
version 1 - Register your interest for our 2025 Digital Academy Programme

version 1

Belfast, Northern Ireland, United Kingdom (On-Site)
4 Months ago
Mattel  Inc  - Analista de Cuenta Clave

Mattel Inc

Monterrey, Nuevo Leon, Mexico (On-Site)
2 Months ago
Axon - Director, Business Systems Analysis (D365 FO)

Axon

Scottsdale, Arizona, United States (Remote)
2 Months ago
MPOWER Financing - UI/UX Designer

MPOWER Financing

Bengaluru, Karnataka, India (Hybrid)
5 Months ago
AVIZVA - Manager - Visual Product Design

AVIZVA

Gurugram, Haryana, India (On-Site)
4 Months ago
RoofStack - Senior UI/UX Designer

RoofStack

İstanbul, İstanbul, Türkiye (Hybrid)
1 Month ago
Next Level Business Services - UX/UI Developer

Next Level Business Services

Cincinnati, Ohio, United States (On-Site)
4 Months ago
Keywords Studios (Player Support) - Experienced Game User Researcher

Keywords Studios (Player Support)

Montreal, Quebec, Canada (Hybrid)
3 Months ago

Get notifed when new similar jobs are uploaded

Similar Skill Jobs

Hike - Business Analyst

Hike

(Remote)
4 Days ago
Thumbtack - Success Operations Analyst

Thumbtack

Ontario, Canada (Remote)
2 Weeks ago
DraftKings - Sr. Associate, Marketing Operations

DraftKings

Boston, Massachusetts, United States (On-Site)
3 Weeks ago
Aristocrat Gaming - Class 2 Business Analyst

Aristocrat Gaming

Franklin, Tennessee, United States (Hybrid)
4 Weeks ago
SuperPlay - BI Marketing

SuperPlay

Tel Aviv District, Israel (On-Site)
2 Hours ago
Lucid Reality Labs - Business Analyst

Lucid Reality Labs

Poland (Remote)
1 Week ago
Hitachi - Dynamics CE Functional Architect (remote/must be Peru- or LATAM-based)

Hitachi

Lima, Callao Region, Peru (Remote)
4 Months ago
PwC - Corporate Tax Real Estate, Manager

PwC

Toronto, Ontario, Canada (On-Site)
4 Months ago
Evolution - Product Business Analyst (Game Development)

Evolution

Riga, Latvia (On-Site)
3 Weeks ago
PwC - Tax Senior Manager

PwC

Saint Helier, St Helier, Jersey (On-Site)
4 Months ago

Get notifed when new similar jobs are uploaded

Jobs in London, England, United Kingdom

Climax Studios - Senior Games Designer

Climax Studios

Liverpool, England, United Kingdom (On-Site)
4 Months ago
Animoca Brands - Marketing Manager

Animoca Brands

United Kingdom (Remote)
4 Months ago
Take-Two Interactive - Treasury Operations Manager

Take-Two Interactive

London, England, United Kingdom (Hybrid)
1 Month ago
Dambuster Studios - Technical Narrative Designer

Dambuster Studios

Nottingham, England, United Kingdom (Hybrid)
6 Months ago
Hawk Eye Innovations - Backend Java Engineer - Contract

Hawk Eye Innovations

London, England, United Kingdom (On-Site)
1 Week ago
Take-Two Interactive - Compensation Analyst

Take-Two Interactive

London, England, United Kingdom (Hybrid)
1 Month ago
Maverick Games - Senior Technical Artist

Maverick Games

Warwick, England, United Kingdom (Hybrid)
1 Week ago
Canva - Senior Computer Vision Engineer - Photo AI

Canva

London, England, United Kingdom (Remote)
3 Weeks ago
Bally's Interactive - Data Engineer

Bally's Interactive

London, England, United Kingdom (On-Site)
3 Months ago
Tesla - Service Technician / Automotive Mechanic

Tesla

London, England, United Kingdom (On-Site)
1 Week ago

Get notifed when new similar jobs are uploaded

UI/UX Design Jobs

CD PROJEKT RED - Senior UI Artist

CD PROJEKT RED

Warsaw, Masovian Voivodeship, Poland (Hybrid)
4 Months ago
Moon Active - UX Team Lead FI

Moon Active

Tel Aviv-Yafo, Tel Aviv District, Israel (On-Site)
2 Months ago
EPAM Systems - Senior UX Designer

EPAM Systems

Hyderabad, Telangana, India (Hybrid)
4 Months ago
Kaedim - UX/UI Designer

Kaedim

London, England, United Kingdom (On-Site)
6 Months ago
Socialpoint - Principal UX/UI Designer

Socialpoint

Barcelona, Catalonia, Spain (Hybrid)
2 Months ago
FISHLABS GmbH - (Regular/Senior) UI/UX Designer (m/f/d)

FISHLABS GmbH

Hamburg, Hamburg, Germany (On-Site)
7 Months ago
Kwalee - UI Artist

Kwalee

Bengaluru, Karnataka, India (On-Site)
1 Week ago
Kefir Games - Senior UI/UX designer

Kefir Games

Cyprus (On-Site)
3 Months ago
Onward Search - UX/UI Designer (Native Mobile App)

Onward Search

North Andover, Massachusetts, United States (Remote)
4 Weeks ago
Target - Lead Product Designer – AR/3D – Guest UX

Target

Bengaluru, Karnataka, India (Hybrid)
5 Months ago

Get notifed when new similar jobs are uploaded

About The Company

Critical Mass is a team of 1,800 inspired folks based in 12 offices around the world, providing full-service digital capabilities for the greatest brands on Earth. Our secret sauce is our uncompromising design standards, our relentless focus on customers, and an ability to put powerful new technologies to work for our clients.


We work with the best—Apple, Nike, Mars Wrigley, Nissan, Diageo, Airbnb, BMW, BNY Mellon, Johnson & Johnson, and many more—brands who strive for connected digital ecosystems and unparalleled experiences. We help them get there by gaining deep insight into their consumers and orchestrating data, AI, design, media, and tech stacks around human stories.


We’re a global agency founded in Canada, but digital is our home. If you know us, then you know we’re a special, quirky place that attracts big talent and tiny egos. (We actually give out a “so f-n nice” award—lots of them). But just because we’re friendly doesn’t mean we’re not a force to be reckoned with. We’re driven. Relentless. And we live our values. We’re Critical Mass, but our friends call us CM. Please call us CM!

New York, New York, United States (Hybrid)

London, England, United Kingdom (On-Site)

San Jose, California, United States (On-Site)

Dallas, Texas, United States (Hybrid)

Vancouver, British Columbia, Canada (On-Site)

Calgary, Alberta, Canada (On-Site)

San Jose, California, United States (Hybrid)

England, United Kingdom (Hybrid)

View All Jobs

Get notified when new jobs are added by Critical mass

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug