Senior UI Designer

📍 Job Overview

Job Title: Senior UI Designer

Company: VML Enterprise Solutions

Location: London, England, United Kingdom

Job Type: Contractual

Category: Creative & Design / User Interface Design

Date Posted: April 30, 2026

Experience Level: Mid-Senior Level (5-10 years estimated)

Remote Status: On-site/Hybrid (Implied by London location and lack of remote designation)

🚀 Role Summary

• Design pixel-perfect, responsive user interfaces that enhance user experience and drive conversion rates for consumer-facing brands.

• Leverage extensive experience with design systems to create scalable and consistent digital assets across various platforms.

• Collaborate within a cross-functional CX team, including UX, Service Design, and Consulting Leads, to translate business needs into compelling visual solutions.

• Own the execution of online visual identity, with a strong focus on conversion-led design for transactional and eCommerce websites.

• Stay current with the latest technology, design trends, and tooling to maintain a leading edge in digital design execution.

📝 Enhancement Note: The role is explicitly stated as a short-term contractual position. The emphasis on "conversion-led design" and "transactional websites" suggests a strong focus on performance marketing and sales funnel optimization through UI. The mention of "CX team" and collaboration with "UX, UI and Service Design, Optimisation and Consulting" indicates a holistic approach to customer experience design, where UI is a critical component.

📈 Primary Responsibilities

• Develop and execute the digital brand look and feel for client interfaces, ensuring adherence to brand guidelines while meeting user and business objectives.

• Design and deliver pixel-perfect, responsive interfaces across multiple devices and screen sizes, optimizing for both user engagement and conversion.

• Apply and extend existing design systems to ensure consistency and efficiency in design execution at scale.

• Integrate user-centered design best practices, conversion design principles, and accessibility standards into all interface designs.

• Own the creation of a compelling portfolio of digital design work that showcases high standards and resonates within the eCommerce landscape.

• Actively participate in a fast-paced, dynamic environment, continuously updating knowledge of emerging technologies, design trends, and tooling.

• Clearly communicate design ideas, solutions, and rationale to clients and internal stakeholders, confidently defending design decisions.

• Foster strong collaborative relationships with stakeholders, fellow designers, UX consultants, product managers, and developers.

📝 Enhancement Note: The responsibilities emphasize a hands-on approach to design execution, requiring the candidate to be proactive and adaptable. The need to "communicate design ideas and solutions" and "confidently defend design decisions" highlights the importance of strong presentation and persuasion skills, crucial for senior-level client-facing roles in an agency environment.

🎓 Skills & Qualifications

Education: Degree educated in Graphic/UI Design or a similar relevant discipline.

Experience: Minimum of 5-10 years of professional experience in UI design, with a significant portion focused on consumer-facing brands and eCommerce. Proven experience working with large-scale design systems. Previous experience within a digital or creative agency, or an in-house design studio.

Required Skills:

• Expertise in UI Design Principles: Demonstrated ability to create visually appealing, user-friendly, and conversion-optimized interfaces.

• Proficiency in Design Tools: Advanced skills in Figma, Sketch, and Adobe Creative Suite (Photoshop, Illustrator).

• Design System Experience: Proven experience in applying and contributing to design systems for large consumer-facing brands.

• eCommerce Design Acumen: Demonstrable experience in designing for transactional websites and eCommerce platforms.

• Responsive & Mobile-First Design: Ability to create interfaces that adapt seamlessly across various devices and screen resolutions.

• User-Centered Design (UCD): Strong understanding of UCD methodologies and how to apply them to interface design.

• Accessibility Principles: Knowledge of WCAG guidelines and best practices for inclusive design.

• Typography & Visual Craftsmanship: An outstanding eye for design, detail, and typography, with a keen sense of craftsmanship.

• Communication & Presentation Skills: Ability to articulate design concepts, decisions, and rationale clearly and confidently to diverse audiences.

• Project Management: Ability to manage own projects, work efficiently, and meet tight deadlines in a fast-paced environment.

• Problem-Solving: Excellent analytical and problem-solving abilities, with a capacity to multitask effectively.

Preferred Skills:

• Design Tokens: Experience with design tokens for enhanced design system management and scalability.

• Animation & Motion Design: Experience with Adobe After Effects and Final Cut Pro for adding dynamic elements to interfaces.

• Conceptual Thinking: Ability to think conceptually and lead the execution of online visual identity.

📝 Enhancement Note: The "If you know some of this, even better" section directly translates into preferred skills. The "AI_KEY_SKILLS" and "AI_REQUIREMENTS_SUMMARY" from the input data confirm the core tool proficiencies and required experience areas. The emphasis on "craftsmanship" and "outstanding eye for design and typography" indicates a high bar for visual quality.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Comprehensive Digital Design Showcase: A compelling portfolio demonstrating high-quality online design work, with a specific emphasis on eCommerce and transactional websites.

• Design System Examples: Visual evidence of experience working with and applying design systems, showcasing consistency and scalability in design solutions.

• Conversion-Focused Case Studies: Detailed case studies that illustrate how UI design decisions contributed to improved user experience and met business conversion goals.

• Responsive Design Examples: Prototypes or mockups demonstrating a strong understanding of responsive design principles across various devices.

• Process Documentation: Examples of how design processes were managed, including user research integration, iteration, and stakeholder feedback incorporation.

Process Documentation:

• Workflow Design & Optimization: Showcase how you approach the design process, from initial concept and wireframing to high-fidelity mockups and interactive prototypes, with a focus on iterative improvement.

• System Implementation & Alignment: Demonstrate how you ensure designs align with and contribute to the evolution of design systems and brand guidelines.

• Measurement & Performance Analysis: Where possible, include examples of how your UI designs have been measured for impact, such as A/B test results or conversion rate improvements.

📝 Enhancement Note: The requirement for a "compelling portfolio that demonstrates high quality design online, including eCommerce" is a direct mandate. The emphasis on "conversion-led design," "transactional websites," and "improving user experience and ultimately increase conversion" means portfolio pieces should highlight measurable outcomes and strategic design thinking, not just aesthetics.

💵 Compensation & Benefits

Salary Range: This is a contractual role. Given the Senior UI Designer title, London location, and required skills (Figma, Sketch, Adobe Suite, eCommerce, Design Systems), a competitive day rate or hourly rate is expected. Based on industry benchmarks for senior-level contract UI Designers in London, a range of £400 - £650 per day is estimated. This rate reflects the demand for specialized skills in a major metropolitan area and the agency context.

Benefits:

• Opportunity to work with world-leading brands.

• Prioritized career development and skill growth opportunities.

• Empowering environment to make a difference.

• Inclusive culture that respects individual identity.

• Potential for contract extension or future opportunities within VML.

Working Hours: The standard working hours are estimated at 40 hours per week. While not explicitly stated as flexible, the contractual nature and agency environment often allow for some degree of flexibility, though direct client deliverables will dictate core availability.

📝 Enhancement Note: Salary estimation is based on research of average contract day rates for Senior UI Designers in London, UK, as of mid-2024, considering the specific skill set (e.g., Figma, Sketch, Adobe Suite, eCommerce focus) and the company's industry (digital agency). The provided benefits are directly extracted from the "What we can offer you" section.

🎯 Team & Company Context

🏢 Company Culture

Industry: Marketing & Advertising / Digital Experience / Enterprise Solutions. VML is part of WPP, a global leader in marketing and communications services. The Enterprise Solutions division focuses on helping large organizations deliver digital experiences across various market channels.

Company Size: VML is a large global company with 26,000 employees worldwide. The Enterprise Solutions division alone comprises over 4,200 experts across 55 operational centers in 34 countries. This indicates a robust, well-resourced organization with extensive capabilities and client reach.

Founded: VML was founded in 2008 (as VMLY&R, following the merger of VML and Young & Rubicam). WPP itself was founded in 1982. This history signifies stability, established processes, and a deep understanding of the marketing and creative industry.

Team Structure:

• The Senior UI Designer will be part of a rapidly expanding CX team in the UK.

• This team includes Leads in UX, UI, Service Design, Optimisation, and Consulting.

• Collaboration is expected with fellow designers, UX consultants, product managers, and developers.

Methodology:

• Human-First & Connected Brands: VML's approach emphasizes creating integrated brand, customer, and commerce experiences.

• Data-Driven Insights & Optimization: The CX team includes "Optimisation" Leads, suggesting a strong focus on performance analysis, A/B testing, and data-informed design improvements to drive conversion.

• Agile & Fast-Paced Execution: The role requires adaptability and willingness to work in a "fast paced, ever-moving environment," typical of agency project delivery.

• Collaborative Intelligence: VML's culture champions "collaborative intelligence to solve complex challenges," indicating a team-oriented approach.

Company Website: https://www.vml.com/

📝 Enhancement Note: The company description highlights VML's extensive global presence and its position within WPP, suggesting access to significant resources and a broad client base. The "Enterprise Solutions" division's focus on large organizations and complex digital experiences implies that the projects will be substantial and impactful. The core values (Heart, Brains, Courage) provide insight into the desired mindset of employees.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned at a Senior level, requiring substantial experience (5-10 years estimated) and a high degree of autonomy. The Senior UI Designer is expected to lead execution, defend design decisions, and work conceptually, indicating a leadership capacity within their design discipline. While a "contractual role," it offers exposure to high-profile projects and complex challenges, serving as a valuable stepping stone.

Reporting Structure: The Senior UI Designer will report into a Lead within the CX team, likely a UX Lead or Design Director, and will collaborate closely with other Leads (UI, Service Design, Optimisation, Consulting). The role also involves direct interaction with clients and project managers.

Operations Impact: The primary impact of this role is on enhancing user experience and driving measurable business growth through improved conversion rates on client websites. By designing intuitive, engaging, and conversion-optimized interfaces, the Senior UI Designer directly contributes to client success in the eCommerce and digital commerce space, impacting revenue generation and customer loyalty.

Growth Opportunities:

• Skill Specialization: Opportunity to deepen expertise in conversion-led design, advanced UI techniques, and working with sophisticated design systems.

• Client Portfolio Expansion: Gain experience working with a diverse range of "blue chip" and leading global brands across various industries.

• Agency Process Acclimation: Develop proficiency in fast-paced agency workflows, client management, and cross-functional team collaboration.

• Potential for Future Engagements: Successful contractors may be considered for future projects or even full-time opportunities within VML or WPP.

• Exposure to Advanced Tools: Potential to work with emerging design tools and technologies, including design tokens and animation software.

📝 Enhancement Note: While a contract role, the "Senior" title and the nature of the work with major clients imply a significant opportunity for professional development and portfolio enhancement. The emphasis on "optimisation" and "conversion" within the CX team suggests a data-driven approach to growth, which is a critical skill for modern operations and design professionals.

🌐 Work Environment

Office Type: The role is based in London, England, UK. While the specific office setup isn't detailed, VML, as part of WPP, likely operates modern, professional office spaces designed to foster collaboration and creativity. Given the "rapidly expanding CX team," it is probable that the London office is a hub for design and client services. The description implies a hybrid work arrangement is possible, but the primary location is London.

Office Location(s): London, England, United Kingdom. Specific office address details are not provided, but VML has multiple offices globally, and London is a principal one.

Workspace Context:

• Collaborative Hub: The London office likely serves as a hub for the CX team, facilitating direct interaction with Leads in UX, UI, Service Design, Optimisation, and Consulting.

• Client-Facing Environment: Expect a professional setting where client presentations and discussions are frequent.

• Tooling & Technology: Access to industry-standard design software (Figma, Sketch, Adobe Suite) and potentially advanced technologies like design tokens.

• Team Interaction: Opportunities to engage with a diverse team of design and strategy professionals, fostering a dynamic and learning-oriented environment.

Work Schedule: The standard work schedule is presumed to be 40 hours per week. As a contractual role, flexibility may exist, but the demands of client projects and agency deadlines will likely require consistent availability and responsiveness, particularly during core business hours in London.

📝 Enhancement Note: The implication of a hybrid model is drawn from the general industry trend and the absence of a strict "on-site only" mandate. However, the emphasis on client work and agency collaboration suggests that significant in-office presence in London may be required, especially for key meetings and team syncs.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Review of CV and portfolio to assess qualifications against required skills and experience.

• Portfolio Presentation & Discussion: Candidates will likely present their portfolio, focusing on relevant projects (eCommerce, design systems, conversion-driven design). Prepare to discuss your design process, decision-making, and the impact of your work.

• Skills Assessment: Potential for a design challenge or practical exercise, possibly simulating a real-world task related to UI design, conversion optimization, or design system application.

• Team/Stakeholder Interviews: Meetings with CX Leads (UX, UI, Optimisation) and potentially project managers or senior stakeholders to evaluate collaboration style, problem-solving abilities, and cultural fit.

• Final Evaluation: Assessment of overall fit, technical proficiency, and ability to contribute to client success.

Portfolio Review Tips:

• Curate Strategically: Select 3-5 of your strongest, most relevant projects. Prioritize eCommerce, transactional sites, and those demonstrating significant impact on conversion or user experience.

• Showcase Design Systems: Include examples that clearly illustrate your experience with design systems, highlighting consistency, scalability, and component usage.

• Quantify Impact: For each project, clearly articulate the problem, your role, your design process, and – critically – the measurable results (e.g., conversion rate increases, user satisfaction improvements, efficiency gains).

• Explain Your Process: Be ready to walk through your design thinking, from research and ideation to iteration and final execution. Explain why you made specific design choices.

• Highlight Collaboration: If possible, demonstrate how you collaborated with UX, developers, or product managers.

• Address Conversion Focus: Explicitly link your UI design decisions to business objectives and conversion goals.

Challenge Preparation:

• Understand Conversion Metrics: Familiarize yourself with common eCommerce KPIs and how UI design influences them.

• Practice Design System Application: Be prepared to discuss how you'd apply or extend a given design system.

• Articulate Design Rationale: Practice explaining your design decisions concisely and persuasively, especially when defending them.

• Research VML & WPP: Understand their client roster, recent work, and core values (Heart, Brains, Courage) to align your responses.

📝 Enhancement Note: The emphasis on "conversion-led design" and "transactional websites" means portfolio pieces should highlight measurable outcomes and strategic design thinking, not just aesthetics. Interview questions will likely probe how the candidate drives business results through design.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Essential for UI design, prototyping, and collaboration. Expect advanced usage for creating and maintaining design systems.

• Sketch: Another critical tool for UI design and prototyping; proficiency in both Figma and Sketch is often expected in senior roles.

• Adobe Creative Suite: Including Photoshop for image manipulation and Illustrator for vector graphics, commonly used in conjunction with UI design tools.

Analytics & Reporting:

CRM & Automation:

Design System Management:

Optional/Preferred Tools:

• Adobe After Effects: For motion graphics and UI animations.

• Final Cut Pro: For video editing, potentially related to animated UI elements or case study videos.

• Design Token Tools: Specific platforms or plugins for managing design tokens.

📝 Enhancement Note: The core tools (Figma, Sketch, Adobe Creative Suite) are explicitly stated. The preference for design tokens and animation tools points to an expectation of advanced, modern UI design practices.

👥 Team Culture & Values

Operations Values:

• Heart: Fostering empathy and trust, leading to genuine connections and human-centric design solutions. Expect a collaborative environment where team members support each other.

• Brains: Valuing relentless curiosity and collaborative intelligence to solve complex design challenges, particularly those related to user experience and conversion optimization.

• Courage: Encouraging individuals to speak up, embrace experimentation, and advocate for bold design solutions that push creative boundaries and drive innovation.

• Impact-Driven: A strong focus on delivering tangible results for clients, with an emphasis on measurable improvements in user experience and business metrics.

• Efficiency & Adaptability: The role demands working in a "fast paced, ever-moving environment," requiring adaptability and a drive for continuous improvement in processes and outcomes.

Collaboration Style:

• Cross-Functional Integration: Close collaboration with UX, Service Design, Optimisation, Consulting Leads, product managers, and developers is fundamental.

• Stakeholder Engagement: Proactive communication and negotiation with clients and internal stakeholders to ensure design alignment and buy-in.

• Feedback-Driven: An environment that likely encourages constructive feedback loops for design iteration and continuous improvement.

• Knowledge Sharing: Expect a culture where sharing best practices, trends, and learnings is encouraged, especially within the expanding CX team.

📝 Enhancement Note: The core values of Heart, Brains, and Courage are explicitly defined and should guide candidate behavior and responses during interviews. The emphasis on "human-first" and "connected brands" suggests a holistic approach to design that considers the entire customer journey.

⚡ Challenges & Growth Opportunities

Challenges:

• Short-Term Contractual Nature: The primary challenge is the limited duration of the contract, requiring rapid integration, high productivity, and immediate impact.

• Client Demands & Tight Deadlines: Working in an agency environment for major clients means managing competing priorities and delivering high-quality work under pressure.

• Balancing User Needs with Business Goals: Effectively translating client objectives for conversion with optimal user experience design.

• Adapting to Diverse Client Brands: Quickly understanding and applying the visual identity and user needs for a variety of "blue chip" client partners.

• Staying Ahead of Design Trends: Continuously evolving skills and tools in a rapidly changing digital landscape.

Learning & Development Opportunities:

• Advanced UI Techniques: Deepen expertise in conversion-focused design, responsive interfaces, and scalable design systems.

• Client Exposure: Work with a prestigious portfolio of global brands, enhancing professional credibility.

• Agency Best Practices: Gain invaluable experience in high-velocity agency workflows, client management, and cross-functional team dynamics.

• Mentorship & Collaboration: Learn from experienced Leads in UX, UI, Service Design, and Optimisation within the CX team.

• Technology Exploration: Opportunity to work with newer technologies like design tokens and potentially explore motion design tools.

📝 Enhancement Note: The contractual nature is a key challenge to acknowledge, requiring candidates to demonstrate immediate value and adaptability. The growth opportunities are framed around gaining experience and exposure that can significantly boost a designer's career trajectory, even within a temporary engagement.

💡 Interview Preparation

Strategy Questions:

• Design Process & Conversion: "Describe your process for designing a high-converting landing page for an eCommerce client. How do you balance user needs with business objectives?" (Focus on UCD, conversion principles, A/B testing considerations, and iterative design.)

• Design Systems: "How have you leveraged or contributed to a design system on a large consumer-facing brand? What are the key benefits and challenges?" (Highlight scalability, consistency, efficiency, and governance.)

• Stakeholder Management: "How do you present and defend your UI design decisions to clients or stakeholders who may have differing opinions or lack design expertise?" (Emphasize clear communication, data-driven rationale, and empathy.)

• Problem-Solving: "Imagine a client's website has a high bounce rate on product pages. What UI design strategies would you explore to reduce this?" (Think about navigation, information architecture, visual hierarchy, calls-to-action, and trust signals.)

Company & Culture Questions:

• "What attracts you to VML and this specific Senior UI Designer role, given it's a contractual position?" (Show enthusiasm for VML's client roster, reputation, and the opportunity to contribute to impactful CX projects.)

• "How do you embody VML's core values of Heart, Brains, and Courage in your work?" (Provide specific examples for each value demonstrating empathy, innovation, and bold decision-making.)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, use the STAR method (Situation, Task, Action, Result) or a similar framework. Start with a clear problem statement and end with measurable outcomes.

• Highlight Your Role: Be explicit about your contributions, especially if working in a team.

• Demonstrate "Conversion-Led" Thinking: Clearly articulate how your UI design choices directly supported business goals like sales, sign-ups, or engagement.

• Showcase Design System Proficiency: If applicable, demonstrate how you applied or extended a design system, detailing your process and the benefits.

• Visual Clarity: Ensure your presentation slides are clean, visually consistent, and professional, reflecting your UI design skills.

• Engage and Interact: Be prepared for questions throughout your presentation and engage in a dialogue about your work.

📝 Enhancement Note: The questions are designed to probe the candidate's understanding of conversion-driven design, agency dynamics, and VML's specific values, as well as their ability to articulate their process and impact.

📌 Application Steps

To apply for this Senior UI Designer position:

• Submit your application through the provided link on Greenhouse.

• Portfolio Customization: Ensure your portfolio prominently features your strongest eCommerce and conversion-focused UI design projects. Tailor your presentation to highlight experience with design systems and responsive design.

• Resume Optimization: Update your resume to clearly articulate your years of experience, proficiency with Figma, Sketch, and Adobe Creative Suite, and specific achievements in UI design for consumer-facing brands and eCommerce. Use keywords from the job description.

• Interview Preparation: Practice presenting your portfolio, focusing on explaining your design process, rationale, and the measurable impact of your work, especially concerning conversion rates. Prepare to discuss your experience with design systems and client collaboration.

• Company Research: Familiarize yourself with VML's work, client roster, and their core values (Heart, Brains, Courage) to demonstrate genuine interest and cultural alignment. Understand the "Enterprise Solutions" division's focus.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and industry-standard assumptions based on the provided data. As this is a contractual role, specific terms, rates, and exact working arrangements should be clarified directly with VML Enterprise Solutions during the interview process. All details should be verified directly with the hiring organization before making application decisions.

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