Lead Product Designer (UX/UI)

📍 Job Overview

Job Title: Lead Product Designer (UX/UI) Company: Fyxer AI Location: London, UK Job Type: FULL_TIME Category: Product Design / UX/UI Date Posted: 2026-01-14 Experience Level: 5-10 years Remote Status: On-site

🚀 Role Summary

• This role is critical for translating a newly redefined visual identity into a cohesive and intuitive product experience across web and mobile web platforms.
• You will own the end-to-end design process for complex, high-utility interfaces, from user research and insight gathering to high-fidelity design and technical implementation alignment.
• It involves maintaining and evolving an existing design system to ensure consistency and scalability as the company grows towards its ambitious revenue goals.
• The position requires a high degree of technical fluency with modern design and front-end technologies, fostering close collaboration with engineering to deliver exceptional user-centric products.

📝 Enhancement Note: While titled "Lead Product Designer (UX/UI)", the responsibilities and context strongly suggest a senior individual contributor role focused on execution and ownership within a lean product team. The emphasis on working alongside founders and another designer, without dedicated Product Managers, highlights a hands-on, deeply involved design position. The "Lead" aspect likely pertains to leading design initiatives for specific features or product areas rather than managing a team.

📈 Primary Responsibilities

• Brand Identity Execution: Translate Fyxer AI's world-class brand identity into premium, trustworthy, and intuitive product flows across web and mobile web applications.
• User-Centric Design Ownership: Lead and execute user research initiatives, gather actionable insights, and leverage them to inform and defend design decisions for complex product features.
• High-Utility Interface Design: Design sophisticated, real-time interfaces and customizable AI response features that feel magical and solve real user problems.
• Design System Stewardship: Maintain consistency and proactively evolve the existing design system, ensuring scalability and adherence to best practices as the product ecosystem expands.
• Cross-Functional Collaboration: Partner directly with Product Engineers, acting as the primary bridge between user needs, design vision, and technical implementation without formal Product Managers.
• Instant Usability Focus: Ensure the "Instant Usability" and overall user experience of the web app, design system, and mobile web remain at the highest standards.
• Prototyping & Iteration: Utilize tools like V0 for rapid prototyping and iterate on designs based on user feedback and technical constraints.

📝 Enhancement Note: The core responsibility of acting as the bridge between user needs and technical implementation, in the absence of Product Managers, is a significant aspect of this role. The emphasis on "high-intensity" and "speed" suggests that efficient workflow and rapid iteration are paramount.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio demonstrating a deep understanding of UX/UI principles, user research methodologies, and system design is essential. Experience: 6+ years of experience in high-growth startup environments (Series A–D, 20–120 employees), with a proven track record of designing and launching complex, high-utility digital products.

Required Skills:

• User Research Expertise: Strong affinity for conducting user research, gathering insights, and using evidence to defend design decisions.
• Design System Proficiency: Experience working with, maintaining, and evolving existing design systems to ensure consistency and scalability.
• Technical Fluency: Comfort and hands-on experience with modern design and front-end technologies, including Figma, ShadCN, Tailwind CSS, and Lucide.
• High-Growth Environment Acumen: Demonstrated ability to thrive in fast-paced, high-intensity startup cultures where execution speed is a competitive advantage.
• Complex Interface Design: Proven ability to design sophisticated, high-utility interfaces that deliver a seamless and intuitive user experience.
• Collaboration & Communication: Excellent ability to collaborate effectively with engineers and other stakeholders, articulating design rationale clearly.
• Ownership Mentality: A proactive approach to taking ownership of features and driving design initiatives from concept to completion.

Preferred Skills:

• Experience with Miro for collaborative whiteboarding and ideation.
• Familiarity with V0 for rapid prototyping and design validation.
• Experience with Posthog for user analytics, surveys, and session recordings.
• Understanding of AI-driven product functionalities and user interaction patterns.

📝 Enhancement Note: The "Startup Veteran" requirement specifically calls for experience in Series A-D funding rounds and employee counts of 20-120. This indicates a need for candidates who understand the unique challenges and pace of mid-stage startups.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Case Studies: Showcase 3-5 detailed case studies that highlight your end-to-end product design process, focusing on complex, high-utility interfaces.
• User Research Integration: Demonstrate how you've incorporated user research findings into your design decisions, including methodologies used and impact on the final product.
• Design System Contributions: Provide examples of how you've worked with or evolved a design system, showcasing consistency and scalability in your work.
• Technical Alignment: Illustrate your understanding of technical constraints and collaboration with engineers, potentially through examples of working with technologies like Tailwind CSS or component libraries.
• Problem/Solution Framing: Clearly articulate the problem you were solving, your design approach, and the measurable outcomes or impact of your solutions.

Process Documentation:

• Workflow Design: Evidence of designing and optimizing complex user workflows for web and mobile web applications.
• Prototyping & Iteration: Examples of rapid prototyping and iterative design processes, demonstrating responsiveness to feedback and data.
• Cross-Functional Collaboration: Documentation or examples of how you've collaborated with engineering teams to ensure successful implementation of designs.
• Systemic Thinking: Demonstrate an ability to think about the product ecosystem holistically and how individual features contribute to the overall user journey.

📝 Enhancement Note: Given the emphasis on "execution is a competitive sport" and the absence of PMs, a portfolio that clearly articulates a fast, efficient, and user-research-driven design process will be highly valued. Demonstrating how you translate brand identity into functional product design is also key.

💵 Compensation & Benefits

Salary Range: £100,000 - £140,000 GBP per year. Benefits:

• High-Growth Opportunity: Be part of a foundational stage in a rapidly scaling company with a clear path to $100M in revenue by EOY 2026.
• Autonomy & Ownership: Significant freedom to own your work and drive design initiatives with minimal oversight.
• Fast-Tracked Responsibilities: Accelerated career progression and opportunities for senior responsibilities much earlier than in traditional companies.
• Impactful Work: Design and contribute to complex, high-utility AI-powered product features that redefine user interaction.
• Collaborative Environment: Work closely with founders and a small, exceptional team focused on quality and speed.
• Office-Based Collaboration: Full-time presence in the London office to foster close collaboration and team synergy.

Working Hours: Standard full-time hours (approximately 40 hours per week), with an expectation of high intensity and efficient execution.

📝 Enhancement Note: The salary range is competitive for a Lead Product Designer role in London, particularly within a high-growth startup. The benefits heavily emphasize career acceleration, ownership, and the opportunity to be part of a significant growth trajectory, aligning with the startup ethos.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology / AI / Software Company Size: Early-stage, high-growth startup (implied 20-120 employees, aiming for $100M+ revenue by 2026). Founded: Fyxer AI is a relatively new entity, but its mission is to redefine visual identity and product execution speed. It has partnered with Red Antler for its brand identity.

Team Structure:

• A lean and focused team, working closely with the Founder CPO and Founder CTO.
• You will work alongside another product designer.
• Emphasis on small, exceptional teams driving outsized performance.

Methodology:

• Quality and Speed of Execution: This is the core competitive advantage Fyxer AI aims to build.
• User-Centricity: Deep commitment to user research and understanding user needs to drive design decisions.
• Systemic Design: Utilizing and evolving a design system to maintain consistency and scalability.
• Technical Alignment: Close collaboration with engineering to ensure designs are technically feasible and implemented effectively.
• Data-Driven Insights: Utilizing tools like Posthog for analytics and user feedback to inform product development.

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

📝 Enhancement Note: The company culture is heavily influenced by the startup environment, prioritizing speed, execution, ownership, and a high level of talent density. The partnership with Red Antler suggests a strong focus on brand and market positioning.

📈 Career & Growth Analysis

Operations Career Level: Lead Product Designer (Senior Individual Contributor). This role is positioned as a senior contributor responsible for leading design initiatives within product areas, deeply involved in strategy and execution. Reporting Structure: You will report to the Founder CPO and work very closely with the Founder CTO. There is no formal management structure for this role, but significant influence. Operations Impact: The designer's impact is direct and substantial, shaping the user experience of complex AI-powered products. This role is crucial for translating brand vision into tangible product value, directly contributing to the company's goal of achieving $100M+ revenue by EOY 2026 through exceptional execution and user satisfaction.

Growth Opportunities:

• Leadership in Design: Take on increasing responsibility for product design strategy and execution for core features and new product areas.
• Skill Specialization: Deepen expertise in AI product design, complex interface design, and design system development.
• Foundational Team Member: Opportunity to shape design culture and processes as the company scales.
• Career Acceleration: Potential for rapid advancement into more senior design leadership roles as the company grows.

📝 Enhancement Note: The growth opportunities are framed around increasing scope of responsibility, specialization, and contributing to the foundational design culture of a rapidly scaling tech company. The "Lead" title implies a trajectory towards greater influence and strategic input.

🌐 Work Environment

Office Type: Office-based in London, UK. This implies a traditional co-located work environment designed for collaboration. Office Location(s): London, UK. Specific details about office amenities or neighborhood are not provided but are expected to be a professional workspace.

Workspace Context:

• Collaborative Hub: The London office serves as the central point for team collaboration, fostering direct interaction with founders and engineering.
• Tooling & Technology: Access to industry-standard design and collaboration tools (Figma, Miro, Posthog, etc.) is implied to support efficient work.
• Team Interaction: Close proximity to engineering and product leadership encourages seamless communication and rapid problem-solving.

Work Schedule: Full-time, office-based in London. While precise hours are not detailed, the "high intensity" and "speed" culture suggest a demanding but rewarding work environment.

📝 Enhancement Note: The requirement for an office-based role in London emphasizes the company's value of in-person collaboration and team synergy, which is common in early-stage startups aiming for rapid iteration and strong team cohesion.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Review of resume and portfolio to assess experience, skills, and cultural fit for a high-growth startup.
• Portfolio Presentation: A deep dive into your portfolio, likely involving a presentation of 1-2 key case studies, focusing on your process, user research, and problem-solving.
• Technical & Design Skills Assessment: Discussions and potential exercises to evaluate your proficiency with Figma, design systems, and technical alignment (e.g., understanding of Tailwind CSS).
• Founder/Leadership Interviews: Conversations with the Founder CPO and Founder CTO to assess strategic thinking, collaboration style, and alignment with Fyxer AI's mission and values.
• Cultural Fit & Intensity Assessment: Evaluation of your ability to thrive in a fast-paced, high-intensity environment that values speed and execution.

Portfolio Review Tips:

• Showcase Process, Not Just Polish: Clearly articulate your design process, from initial research and ideation to iteration and final implementation.
• Highlight User Research Impact: Demonstrate how your research directly influenced design decisions and improved user outcomes.
• Focus on Complex Problems: Present case studies that tackle genuinely complex interface challenges and showcase your ability to simplify them.
• Emphasize Collaboration: Include examples or descriptions of how you partnered with engineers and other stakeholders.
• Quantify Impact: Where possible, use data and metrics to illustrate the success of your designs (e.g., improved conversion rates, reduced friction, increased user engagement).
• Tailor to Fyxer AI: Highlight experience with similar technologies (Figma, Tailwind CSS) and in similar environments (high-growth startups).

Challenge Preparation:

• Be prepared to discuss how you would approach designing a specific feature or improving an existing flow within Fyxer AI's product suite.
• Practice articulating your design rationale clearly and concisely, anticipating questions about trade-offs, user impact, and technical feasibility.
• Familiarize yourself with Fyxer AI's current product and brand identity to demonstrate genuine interest and understanding.

📝 Enhancement Note: The interview process will heavily scrutinize your portfolio for evidence of a rigorous, user-centric design process and your ability to execute effectively in a fast-paced startup environment. Be ready to defend your design choices with data and user insights.

🛠 Tools & Technology Stack

Primary Tools:

• Design: Figma (primary design tool), Miro (collaboration, ideation).
• Prototyping: V0 (for rapid prototyping), Figma's native prototyping capabilities.
• Design System Components: ShadCN (component library), Tailwind CSS (utility-first CSS framework).
• Icons: Lucide (icon library).

Analytics & Reporting:

• User Insights: Posthog (Surveys, Session Recording, Analytics).

CRM & Automation:

• Not explicitly mentioned, but typical for startups to use tools for sales/marketing automation and CRM, though not a primary focus for this design role.

📝 Enhancement Note: Proficiency with Figma, an understanding of design systems, and familiarity with front-end technologies like Tailwind CSS and component libraries like ShadCN are crucial technical requirements. Experience with Posthog for user insights is a significant plus.

👥 Team Culture & Values

Operations Values:

• Execution Excellence: A strong belief that the quality and speed of execution are the primary competitive advantages.
• User-Centricity: Designing with a deep understanding of user needs and leveraging research to validate decisions.
• Intensity & Speed: Thriving in a high-paced environment where efficiency and rapid iteration are paramount.
• Ownership & Autonomy: Empowering individuals to take full responsibility for their work and drive initiatives forward.
• Quality & Craftsmanship: A commitment to building "legendary" products with thoughtful, clean, and premium experiences.

Collaboration Style:

• Direct & Lean: Close, hands-on collaboration with founders and engineers, without layers of management.
• Cross-Functional Partnership: Acting as the bridge between user needs and technical implementation, working hand-in-hand with engineers.
• Feedback-Driven: Openness to feedback and iterative improvement based on research and team input.

📝 Enhancement Note: The emphasis on "intensity" and "speed" suggests a culture that values proactive problem-solving, decisive action, and a high level of personal accountability.

⚡ Challenges & Growth Opportunities

Challenges:

• Pace of Execution: Adapting to and thriving in a high-speed, iterative development environment.
• Designing Complex AI Interfaces: Translating sophisticated AI capabilities into intuitive and user-friendly experiences.
• Balancing Brand Consistency with Innovation: Maintaining a cohesive visual identity while pushing the boundaries of product functionality.
• Working Without Dedicated PMs: Taking on a broader scope of product definition and user advocacy in collaboration with engineering.
• Scaling Design Systems: Evolving a design system to support rapid product growth and new feature development.

Learning & Development Opportunities:

• AI Product Design: Gain deep experience in designing cutting-edge AI-driven applications.
• System Design at Scale: Contribute to and grow a design system that supports a rapidly expanding product suite.
• Startup Leadership: Develop strategic thinking and leadership skills within a high-growth context.
• Cross-Functional Mastery: Hone collaboration skills with engineering and product leadership in a lean environment.

📝 Enhancement Note: The challenges are directly tied to the startup environment and the nature of designing innovative AI products. The growth opportunities are substantial for an ambitious designer looking to make a significant impact.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to significantly influence product direction based on user research. How did you approach it, and what was the outcome?" (Focus on your research process, data utilization, and persuasion skills).
• "How would you approach designing a new feature for our 'Notetaker' product, considering its real-time and insight-generation capabilities?" (Prepare to outline your design process, from understanding user needs to sketching and prototyping).
• "Fyxer AI prioritizes speed and execution. How do you balance speed with ensuring high-quality design and thorough user research?" (Highlight your efficiency strategies and how you make informed trade-offs).

Company & Culture Questions:

• "What excites you about Fyxer AI's mission to deliver quality and speed of execution?" (Show genuine interest in the company's core values).
• "How do you typically collaborate with engineers, especially when there aren't dedicated Product Managers?" (Emphasize your partnership approach and communication skills).
• "Describe your experience working in a high-growth startup environment. What are the key differences compared to larger organizations?" (Demonstrate your adaptability and understanding of startup dynamics).

Portfolio Presentation Strategy:

• Structure: Organize your presentation around 1-2 key case studies. For each, clearly define the problem, your role, the research/discovery phase, your design process and solutions, and the final impact/outcomes.
• Focus on Process: Emphasize how you arrived at your solutions, not just the final polished screens. Detail your user research methods, ideation techniques, and iterative steps.
• Quantify Impact: Use metrics and data to support the success of your designs. If exact metrics aren't available, articulate the intended impact and how you would measure it.
• Technical Context: Be ready to discuss the technical considerations of your designs, especially in relation to Figma, design systems, and front-end technologies like Tailwind CSS.
• Brand Integration: Explain how you incorporated Fyxer AI's brand identity into your designs and ensured a premium feel.

📝 Enhancement Note: Prepare specific examples from your portfolio that directly address the responsibilities and required skills mentioned in the job description. Be ready to articulate your design process, user research methodology, and ability to collaborate closely with engineering in a fast-paced environment.

📌 Application Steps

To apply for this Lead Product Designer position:

• Submit your application through the provided Ashby link.
• Portfolio Customization: Ensure your portfolio prominently features case studies that demonstrate your experience with complex interfaces, user research, design systems, and working in high-growth startup environments. Tailor your presentation to highlight your technical fluency with Figma, ShadCN, and Tailwind CSS.
• Resume Optimization: Update your resume to clearly articulate your 6+ years of experience in high-growth environments and highlight achievements related to execution speed, user research impact, and collaboration with engineering teams.
• Interview Preparation: Practice articulating your design process, defending design decisions with user insights, and discussing how you would contribute to Fyxer AI's culture of speed and quality. Prepare to present your most relevant case studies.
• Company Research: Thoroughly research Fyxer AI, its mission, its product offerings, and its partnership with Red Antler. Understand their focus on execution quality and speed to align your responses with their company values and goals.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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