Senior Product Designer (£70k–£90k + Equity) at Jigsaw Tech

📍 Job Overview

Job Title: Senior Product Designer

Company: Jigsaw Tech (Hired by Jack & Jill)

Location: London, United Kingdom

Job Type: Full-Time

Category: Product Design / GTM Operations Enablement

Date Posted: April 23, 2026

Experience Level: 5+ Years

Remote Status: Hybrid

🚀 Role Summary

• Lead the end-to-end design of a greenfield data visualization platform for global financial institutions and law firms, focusing on complex corporate structures and interconnected data.

• Drive user experience from discovery through to shipment, translating intricate interaction challenges into intuitive and visually clear interfaces.

• Define and build Jigsaw Tech's foundational design system, establishing architectural patterns and UI components for future product development.

• Collaborate closely with engineering and product teams in a lean, high-performing environment, contributing to a top-quartile SaaS company backed by significant Series A funding.

• Embrace a high-ownership role within a startup setting, demonstrating product ownership and the ability to transform ambiguous requirements into technical-ready designs.

📝 Enhancement Note: While the primary role is Product Design, the focus on complex data visualization for financial and legal institutions, coupled with the need to define user experiences for business users, places this role at the intersection of product design and GTM operations enablement. The ability to translate complex, data-heavy information into actionable insights is crucial for sales and customer success teams, making this role indirectly impactful on revenue operations.

📈 Primary Responsibilities

• Spearhead the design strategy and execution for a new data visualization platform, addressing the unique needs of legal tech and financial services clients.

• Conduct in-depth user discovery sessions with lawyers and accountants to identify pain points and co-create human-centric solutions for managing complex corporate structures.

• Design intuitive interfaces for navigating dense entity hierarchies, multi-level ownership chains, and massive, interconnected datasets.

• Develop and maintain Jigsaw Tech’s comprehensive design system, ensuring consistency, scalability, and efficiency across all product offerings.

• Translate complex technical requirements and business needs into visually appealing, user-friendly, and technically feasible design specifications.

• Collaborate with product managers and engineers to ensure design integrity throughout the development lifecycle, from concept to deployment.

• Champion user-centered design principles and best practices within the product development team and across the organization.

• Contribute to the overall product strategy by providing design insights and advocating for user needs.

📝 Enhancement Note: The emphasis on "greenfield," "high-ownership," and "defining industry standard" suggests a significant strategic component to this design role, requiring not just execution but also foresight and product vision. This aligns with senior roles that often bridge the gap between pure design and product operations by influencing the direction and usability of core business tools.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong portfolio demonstrating equivalent practical experience and a deep understanding of design principles is essential.

Experience: 5+ years of dedicated B2B SaaS product design experience, with a proven track record in complex, data-heavy environments.

Required Skills:

• Proven expertise in end-to-end product design, from user research to final UI/UX implementation.

• Demonstrable experience in designing for complex data visualization, particularly with intricate hierarchies and interconnected datasets.

• Proficiency in Figma for wireframing, prototyping, and high-fidelity design.

• Strong user discovery and qualitative research skills, with the ability to elicit actionable insights from business users (lawyers, accountants).

• Experience in building and evolving design systems, including defining architectural patterns and UI components.

• Ability to thrive in high-ambiguity startup environments and exhibit strong product ownership.

• Excellent communication and presentation skills, capable of translating technical concepts and design rationales to diverse stakeholders.

Preferred Skills:

• Experience within the legal tech or FinTech sectors.

• Familiarity with data modeling and information architecture for large datasets.

• Understanding of front-end development principles to facilitate effective collaboration with engineers.

• Experience with user testing methodologies and iterating on designs based on feedback.

📝 Enhancement Note: The requirement for 5+ years of experience and the emphasis on leading a "greenfield" product and "defining the industry standard" indicate a senior-level role with significant autonomy and strategic input, aligning with the expectations for a lead or principal designer who can influence product direction.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio that clearly demonstrates your problem-solving approach to complex, data-intensive design challenges.

• Case studies showcasing end-to-end product design processes, from initial user research and problem definition to final design solutions and their impact.

• Examples of your work on B2B SaaS products, highlighting your understanding of enterprise user needs and workflows.

• Visualizations of complex data structures, demonstrating your ability to make dense information manageable and accessible.

Process Documentation:

• Showcase your process for conducting user discovery, including methodologies for interviewing legal and financial professionals.

• Detail your approach to translating vague requirements into concrete design specifications and user flows.

• Illustrate your methods for iterating on designs based on user feedback and technical constraints.

• Provide examples of how you have collaborated with engineering teams to ensure successful implementation of designs.

📝 Enhancement Note: For a senior design role, particularly one involving complex data and a greenfield product, the portfolio is paramount. It needs to go beyond visual aesthetics to demonstrate strategic thinking, process rigor, and a deep understanding of user needs within a specific industry context. The ability to articulate the "why" behind design decisions and their impact is crucial.

💵 Compensation & Benefits

Salary Range: £70,000 - £90,000 per annum (GBP)

Equity: Significant equity package included.

Benefits:

• Comprehensive health insurance (details to be confirmed by the company).

• Generous paid time off and holiday allowance.

• Opportunities for professional development and continued learning.

• Pension scheme contribution (details to be confirmed by the company).

• Hybrid working model, offering flexibility between office and remote work.

• Potential for significant career growth and impact within a rapidly scaling startup.

Working Hours: Standard full-time hours, typically around 40 hours per week, with flexibility often afforded in a hybrid startup environment.

📝 Enhancement Note: The salary range of £70k–£90k for a Senior Product Designer in London, UK, is competitive and aligns with industry standards for experienced professionals in the tech sector, especially in a high-growth Series A startup environment with equity. The inclusion of equity is a significant component of total compensation in such companies. Salary research for London indicates this range is appropriate for a Senior Product Designer with 5+ years of experience in B2B SaaS.

🎯 Team & Company Context

🏢 Company Culture

Industry: Legal Tech (SaaS)

Company Size: Growing from 30 to 130+ employees in 18 months, indicating a Series A stage company with significant scaling momentum. This implies a dynamic, fast-paced environment.

Founded: Jigsaw Tech is a Series A funded legal tech startup. The founders have a track record of building a billion-dollar company, suggesting strong leadership and a focus on scalable growth.

Team Structure:

• The design team is lean and high-performing, led by an ex-Farfetch/ClearScore CPO.

• This Senior Product Designer will be a foundational member, working closely with product and engineering.

Methodology:

• Data-driven decision-making is implied by the nature of a data visualization platform and the backing of venture capital.

• Lean and agile development methodologies are likely employed due to the startup context.

• User-centric design and customer discovery are explicitly mentioned as core to the product development process.

Company Website: [Jack & Jill's website is used for application, Jigsaw Tech's specific website is not provided but can be inferred as the client company.]

📝 Enhancement Note: The company is described as a "Series A legal tech startup backed by Exor Ventures," which provides context for its growth stage and investment profile. The mention of "second-time founders who previously built a billion-dollar company" highlights the experience and ambition of the leadership. The "lean, high-performing design team led by an ex-Farfetch/ClearScore CPO" suggests a culture that values expertise and efficient execution.

📈 Career & Growth Analysis

Operations Career Level: Senior Individual Contributor. This role is for an experienced designer who can operate with significant autonomy, lead design initiatives, and mentor junior team members as the team grows.

Reporting Structure: The Senior Product Designer will report directly to the CPO or Head of Design, working closely with Product Managers and Engineering leads.

Operations Impact: While not a direct operations role, the Senior Product Designer's work on a data visualization platform for financial and legal institutions will directly enable sales, customer success, and business development teams. Intuitive data insights can streamline client onboarding, improve customer retention, and provide valuable intelligence for strategic decision-making, thereby impacting revenue operations indirectly.

Growth Opportunities:

• Opportunity to be a foundational member and shape the design culture and direction of a rapidly scaling tech company.

• Potential to grow into a Design Lead or Manager role as the design team expands.

• Gain deep expertise in the legal tech and financial services data visualization space.

• Direct mentorship from a seasoned CPO with experience at prominent tech companies.

• Significant career advancement potential within a company that has already achieved Series A funding and has a proven founding team.

📝 Enhancement Note: As a "foundational member" of a "lean, high-performing design team," this role offers substantial growth potential. The Senior Product Designer will not only shape the product but also influence the team's trajectory and potentially grow into leadership positions as Jigsaw Tech scales. The opportunity to define an "industry standard" is a significant career highlight.

🌐 Work Environment

Office Type: Hybrid. The role is based in London, UK, with a hybrid working model. This suggests a blend of in-office collaboration and remote flexibility.

Office Location(s): London, UK. Specific office location details are not provided but can be assumed to be in a central London area conducive to tech startups.

Workspace Context:

• Collaborative environment with a lean, high-performing design team.

• Access to modern design tools and technologies, including Figma.

• Opportunity to work closely with experienced founders and leadership.

• Dynamic startup atmosphere characterized by rapid growth and innovation.

Work Schedule: Standard full-time, with flexibility inherent in a hybrid startup environment. The focus is on output and impact rather than strict adherence to hours.

📝 Enhancement Note: The hybrid model in London indicates a balance between in-person collaboration, crucial for design sprints and team cohesion, and the flexibility that many professionals seek. The "lean" team structure suggests a high degree of interaction and shared responsibility.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Application: Submit through the Jack & Jill platform, engaging with "Jack" (AI) for initial screening.

• Jill's Review: Jill (AI Recruiter for the company) will assess candidates from Jack's network.

• Introduction: If a strong match, Jill will facilitate an introduction to Jigsaw

Tech.

• Company Interviews: Expect multiple rounds, likely including:
  • Portfolio Review: A deep dive into your case studies, focusing on your process, problem-solving, and impact.
  • Design Challenge: A practical exercise to assess your skills in handling complex data visualization and interaction design.
  • Stakeholder Interviews: Meetings with Product, Engineering, and potentially founders to assess technical fit, collaboration style, and strategic thinking.
  • Cultural Fit Assessment: Evaluation of your ability to thrive in a fast-paced, high-ambiguity startup environment.

Portfolio Review Tips:

• Tailor your portfolio to highlight experience with complex data, B2B SaaS, and design systems.

• For each case study, clearly articulate the problem, your process, your role, the challenges faced, and the measurable outcomes.

• Be prepared to discuss your design decisions, trade-offs, and how you adapted to ambiguity.

• Showcase your Figma proficiency and any experience with user discovery techniques.

Challenge Preparation:

• Focus on how you would approach designing for complex data hierarchies and visualization.

• Be ready to articulate your thought process for translating ambiguous requirements into actionable design steps.

• Practice presenting your solutions clearly and concisely, explaining your rationale.

• Consider how you would build a design system from scratch for a new product.

📝 Enhancement Note: The application process involves an AI intermediary (Jack & Jill), which is a unique aspect. Candidates should be prepared to engage with AI for initial screening and then present themselves effectively to the human hiring team at Jigsaw Tech. The portfolio and design challenge are critical evaluation points.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Essential for wireframing, prototyping, and high-fidelity design. Proficiency is a must.

• Design System Tools: Experience with tools for creating, managing, and documenting design systems (e.g., Zeroheight, Storybook components, or Figma libraries).

Analytics & Reporting:

CRM & Automation:

• No direct CRM/automation tools are specified for the designer's core role, but understanding how design impacts user adoption and engagement with business tools is valuable.

📝 Enhancement Note: The explicit mention of Figma as a required skill, coupled with the need to build a design system, indicates the core technological requirements for this role. Any additional familiarity with user research platforms or collaboration tools would be a plus.

👥 Team Culture & Values

Operations Values:

• Innovation & Ownership: Encouraged to take initiative and drive product direction.

• User-Centricity: Deep understanding of user needs is paramount, especially for complex B2B clients.

• Excellence & Impact: Focus on delivering high-quality, impactful solutions that define industry standards.

• Collaboration: Working closely with product and engineering in a lean, agile team.

• Data-Driven: Utilizing data (and enabling others to visualize it) to inform decisions.

Collaboration Style:

• Highly collaborative within a lean, cross-functional team.

• Open communication and feedback loops are expected, given the startup environment and the leadership's background.

• Designers are expected to work closely with product managers and engineers to translate requirements into tangible product features.

📝 Enhancement Note: The culture is likely fast-paced, results-oriented, and values individuals who can take initiative and ownership. The background of the founders and CPO suggests a culture that respects expertise and data-informed decision-making.

⚡ Challenges & Growth Opportunities

Challenges:

• Designing for extreme complexity in data visualization and corporate structures, making dense information feel manageable.

• Navigating the ambiguity inherent in a greenfield product development phase.

• Establishing a design system from scratch for a new, critical platform.

• Balancing user needs with technical feasibility and business objectives in a fast-growing startup.

Learning & Development Opportunities:

• Deep dive into the legal tech and financial services industries, understanding their unique data challenges.

• Opportunity to pioneer new approaches in data visualization design.

• Mentorship from experienced founders and a CPO with a strong track record.

• Potential to influence product strategy and company growth trajectory.

• Develop expertise in building scalable design systems.

📝 Enhancement Note: The primary challenge is transforming complexity into simplicity through design. This requires not only technical skill but also strategic thinking and excellent communication. The growth opportunities are substantial, tied to the company's rapid scaling and the foundational nature of the role.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for understanding and designing for highly complex, data-intensive B2B workflows. How would you approach Jigsaw Tech's data visualization challenge?"

• "Imagine you're given vague requirements for a new feature. What steps would you take to translate these into polished, technical-ready designs, and how would you manage ambiguity?"

Company & Culture Questions:

• "Why are you interested in Jigsaw Tech and our mission to transform corporate data visualization?"

• "How do you see yourself contributing to a lean, high-performing design team in a fast-paced startup environment?"

Portfolio Presentation Strategy:

• Structure your presentation around 2-3 key case studies that best showcase your experience with complex data, B2B SaaS, and design systems.

• For each case study, clearly outline: Problem, Your Role, Process, Solution, and Impact/Outcome.

• Be prepared to discuss the trade-offs you made and why.

• Demonstrate your Figma skills and thought process during a live walkthrough if requested.

• Emphasize how your design approach would benefit Jigsaw Tech's specific challenges.

📝 Enhancement Note: Interview preparation should focus on demonstrating strategic thinking, problem-solving skills for complex data, and the ability to operate effectively in a startup environment. Highlighting experience with design systems and user discovery for B2B clients will be key.

📌 Application Steps

To apply for this Senior Product Designer position:

• Visit the Jack & Jill website and click 'Talk to Jack' to initiate the application process.

• Prepare to have a conversation with Jack (AI) to articulate your experience, skills, and career aspirations relevant to this role.

• Customize your resume to highlight your 5+ years of B2B SaaS product design experience, with specific emphasis on complex data visualization, design systems, and user discovery.

• Curate your portfolio to showcase 2-3 compelling case studies that demonstrate your problem-solving skills, end-to-end design process, and impact in data-heavy environments.

• Research Jigsaw Tech and the legal tech industry to understand their market and potential user needs, preparing thoughtful questions for the interview stages.

⚠️ 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 (Jigsaw Tech, via Jack & Jill) before making application decisions. The application process is managed through Jack & Jill's platform.