Senior UI Engineer - Design Systems Team Lead

📍 Job Overview

Job Title: Senior UI Engineer - Design Systems Team Lead

Company: Barclays

Location: Gemini Building A, Prague, Czechia

Job Type: FULL_TIME

Category: Engineering - Frontend / Design Systems

Date Posted: 2026-02-04

Experience Level: Senior (5-10 years)

Remote Status: On-site

🚀 Role Summary

• Lead and mentor a team of UI engineers, fostering technical excellence and collaborative innovation within a design systems context.

• Architect and own a comprehensive, React-based component library, ensuring adherence to modern design system principles, accessibility, and performance standards.

• Translate design tokens and specifications into reusable, production-ready UI components, maintaining design fidelity across diverse applications.

• Enhance developer experience through tooling, documentation, and efficient adoption strategies for the design system.

• Drive cross-functional partnerships with product, design, and platform engineering to align the design system roadmap with strategic business objectives.

📝 Enhancement Note: This role is positioned as a Senior Software Engineer with a specific focus on Design Systems and Team Leadership. The "Vice President Expectations" section indicates a significant level of strategic influence and potential team management, aligning it with a senior individual contributor or a lead role with direct reports. The "AI_experience_level" of "5-10" years further supports this senior designation.

📈 Primary Responsibilities

• Provide architectural ownership and strategic direction for the design system's React component library, ensuring scalability, maintainability, and adherence to best practices.

• Develop and implement rigorous testing strategies, including unit, visual regression, and accessibility audits, to guarantee component quality and reliability.

• Champion and embed web accessibility standards (WCAG 2.1 AA) and inclusive design principles throughout the team's workflow and component development.

• Collaborate closely with UX/UI designers to effectively translate design tokens, style guides, and interaction patterns into performant and accessible UI components.

• Define and maintain clear component APIs, establish reusable patterns, and contribute to the overall design system roadmap in alignment with business priorities.

• Build and maintain essential tooling, comprehensive documentation, and developer experience improvements to facilitate efficient adoption and contribution to the design system by engineering teams.

• Contribute to strategic architectural decisions, CI/CD pipelines, and release processes for a versioned component library consumed across multiple applications.

• Actively participate in code reviews, providing constructive feedback to foster a culture of technical excellence and continuous improvement within the UI engineering team.

📝 Enhancement Note: The responsibilities detailed in the job description emphasize not only technical leadership in building a component library but also strategic collaboration with design and product teams, and a strong focus on accessibility and developer experience. This suggests a role that bridges technical development with GTM enablement through consistent and high-quality UI.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's degree in Computer Science, Engineering, or a related field is typically expected for senior engineering roles. Equivalent practical experience will also be considered.

Experience: 5-10 years of professional software engineering experience, with a significant focus on frontend development and design systems. Proven experience in leading or mentoring engineering teams is crucial for this role.

Required Skills:

• Proven experience leading and developing engineering teams, including mentorship and fostering high-performing, collaborative environments.

• Strong proficiency in React and TypeScript, with demonstrable experience in building and scaling component libraries or design systems.

• Deep understanding of modern CSS, including CSS custom properties, CSS-in-JS solutions, and utility-first frameworks (e.g., Tailwind CSS).

• Experience with design tokens and associated tooling for cross-platform transformation (e.g., Style Dictionary, Token Studio).

• Solid understanding of web accessibility standards (WCAG 2.1 AA) and experience implementing ARIA patterns and keyboard navigation.

• Proficiency with component documentation tools such as Storybook, including writing stories, documentation, and visual tests.

• Familiarity with modern build tools (e.g., Vite, Rollup) and package management for library development (e.g., npm/pnpm workspaces).

Preferred Skills:

• Experience with Vue.js or other modern frontend frameworks.

• Knowledge of animation libraries and micro-interaction implementation.

• Experience with monorepo tooling (e.g., Nx, Turborepo) and CI/CD pipelines for component libraries.

• Understanding of semantic versioning, changelog management, and library release processes.

• Contributions to open-source design systems or component libraries.

• Experience with Figma plugin development or design-to-code tooling.

• Background in establishing engineering standards, code review practices, and technical documentation.

📝 Enhancement Note: The required skills strongly align with a senior-level individual contributor or team lead role focused on design systems. The emphasis on leadership, React, TypeScript, CSS, accessibility, and tooling like Storybook and design token management are standard for this specialization. Preferred skills indicate areas where additional expertise would be highly advantageous.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate a portfolio showcasing leadership in developing and scaling component libraries or design systems, highlighting your architectural contributions.

• Include case studies or examples of how you've translated design specifications and design tokens into reusable, production-ready UI components.

• Provide evidence of implementing comprehensive testing strategies (unit, visual regression, accessibility) for UI components.

Process Documentation:

• Document the process of translating design tokens and specifications into functional UI components, detailing the workflow and tools used.

• Illustrate the process for implementing and maintaining accessibility standards (WCAG 2.1 AA) within component development.

• Detail the methodology for establishing and managing component APIs, versioning, and release cycles for a design system.

• Present examples of how you have collaborated with designers and product managers to define and evolve the design system roadmap.

📝 Enhancement Note: For a role of this nature, a strong portfolio is paramount. It should not only showcase technical proficiency but also leadership, process thinking, and the ability to drive adoption and maintain quality for a critical shared asset like a design system. The focus on process documentation highlights the need to demonstrate how systematic approaches are used.

💵 Compensation & Benefits

Salary Range: Based on industry standards for a Senior UI Engineer - Design Systems Team Lead in Prague, Czechia, with 5-10 years of experience, the estimated annual salary range is CZK 1,200,000 - CZK 1,800,000. This estimate considers the seniority of the role, the specific technical expertise required (React, Design Systems), leadership responsibilities, and the cost of living in Prague. Barclays typically offers competitive compensation packages.

Benefits:

• Comprehensive health insurance, including medical, dental, and vision coverage.

• Generous paid time off (PTO), including vacation days, sick leave, and public holidays.

• Pension/retirement savings plan contributions.

• Professional development opportunities, including training, conferences, and certifications.

• Employee assistance programs and well-being initiatives.

• Potential for performance-based bonuses.

• Modern office facilities with amenities.

Working Hours: The standard working hours for this full-time role are approximately 40 hours per week. While on-site, there may be flexibility in start and end times, subject to team and business needs. Some occasional overtime or weekend work may be required during critical project phases or release cycles.

📝 Enhancement Note: The salary range is an estimate based on market data for senior engineering roles in Prague. Benefits are typical for a large financial institution like Barclays, aiming to attract and retain top talent. The working hours are standard for a full-time position.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services / Banking. Barclays is a global financial services provider engaged in retail banking and commercial banking, credit cards, investment banking, and wealth management. This industry context implies a strong emphasis on security, compliance, reliability, and robust technology solutions.

Company Size: Large Enterprise (typically 10,000+ employees). This means the role operates within a complex organizational structure, offering opportunities for broad impact but also requiring navigation of established processes and cross-functional collaboration.

Founded: 1836. With a long history, Barclays has a deeply ingrained culture and established operational frameworks.

Team Structure:

• The role is within the "Digital Experience Platform" team, suggesting a central, foundational engineering group.

• As a Team Lead, you will likely manage a dedicated team of UI engineers focused on the design system.

Methodology:

• Expect a blend of Agile methodologies (Scrum, Kanban) for iterative development and delivery.

• A strong emphasis on data-driven decision-making, performance metrics, and continuous improvement for both product development and internal processes.

• Adherence to rigorous security and compliance protocols inherent in the financial services industry.

Company Website: https://home.barclays/

📝 Enhancement Note: The company's industry and size are critical for understanding the operational environment. Financial services demand high standards for security, compliance, and reliability, which will influence design system development and adoption. The "Digital Experience Platform" team likely serves as a core enabler for various business units.

📈 Career & Growth Analysis

Operations Career Level: Senior Individual Contributor / Team Lead. This role is at a critical juncture in a technical career, moving beyond individual contribution to encompass leadership, architectural strategy, and team development. It represents a significant step up from a standard Senior Engineer role, requiring both deep technical expertise and people/process management skills.

Reporting Structure: You will report to a Director or Head of Engineering within the Digital Experience Platform or a related technology division. You will also be responsible for leading and mentoring a team of UI Engineers.

Operations Impact: The design system is a foundational element for all digital products. Your work will directly impact the consistency, usability, accessibility, and development velocity of numerous applications used by millions of customers and thousands of internal colleagues. This role has a substantial multiplier effect on engineering efficiency and brand consistency across the Barclays digital landscape.

Growth Opportunities:

• Technical Specialization: Deepen expertise in design systems, frontend architecture, accessibility, and modern UI technologies, potentially leading to Principal Engineer or Architect roles.

• Leadership Path: Progress into Engineering Manager or Director roles, managing larger teams and broader technical domains.

• Cross-Functional Mobility: Opportunities to move into Product Management, Technical Program Management, or roles focusing on developer productivity and platform strategy.

• Industry Influence: Contribute to open-source communities, speak at conferences, and influence industry best practices in design systems and frontend development.

📝 Enhancement Note: This role offers a clear path for growth, either deeper into technical leadership or broader into people management and strategic platform development. The impact of a well-executed design system in a large enterprise like Barclays is immense, providing significant career leverage.

🌐 Work Environment

Office Type: Modern, corporate office environment. Barclays offices are typically designed to foster collaboration and provide a professional workspace.

Office Location(s): Gemini Building A, Prague. This location suggests a well-equipped, modern facility likely designed to support collaborative work and technological innovation.

Workspace Context:

• The environment will be collaborative, requiring regular interaction with designers, product managers, and other engineers.

• Access to cutting-edge tools and technologies will be provided to support efficient development and design system management.

• Opportunities for informal knowledge sharing and structured team meetings will be abundant.

Work Schedule: The role is primarily on-site in Prague, with standard working hours. While flexibility may exist, the emphasis on team collaboration and leadership suggests a consistent presence in the office is expected. The nature of design system work often involves balancing proactive development with reactive support for adopting teams.

📝 Enhancement Note: The on-site requirement in Prague is a key detail. The workspace context emphasizes collaboration and access to modern tools, which is essential for a design systems role that interfaces with many other teams.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: HR or Recruiter call to assess basic qualifications, experience, and cultural fit.

• Technical Interview(s): In-depth discussions focusing on React, TypeScript, CSS, accessibility, component architecture, and design system principles. May include coding challenges or live coding sessions.

• Design System/Architecture Discussion: A session focused on your approach to building and leading a design system, including strategy, tooling, adoption, and team management. This is where your portfolio will be crucial.

• Team Lead/Leadership Interview: Discussion on your leadership style, experience mentoring engineers, conflict resolution, and strategic thinking.

• Hiring Manager/VP Interview: A final conversation to assess overall fit, strategic alignment, and confirm expectations.

Portfolio Review Tips:

• Curate Selectively: Showcase 3-5 of your strongest projects that directly relate to design systems, component libraries, or leading engineering teams.

• Structure Your Case Studies: For each project, clearly outline the problem, your role and responsibilities, the technical solutions implemented, the challenges faced, and the measurable outcomes or impact (e.g., improved development speed, increased consistency, enhanced accessibility scores).

• Highlight Leadership: If applicable, detail instances where you mentored junior engineers, influenced technical direction, or drove adoption of a new system or process.

• Demonstrate Technical Depth: Be prepared to discuss the architectural decisions, trade-offs, and specific technologies used in your portfolio projects.

• Focus on Impact: Quantify results whenever possible. How did your work benefit the end-users or the development teams?

Challenge Preparation:

• Live Coding: Practice coding complex UI components in React/TypeScript, focusing on clean code, state management, and accessibility.

• System Design: Prepare to discuss how you would architect a scalable design system, including component structure, theming, versioning, and documentation strategy.

• Behavioral Questions: Prepare examples using the STAR method (Situation, Task, Action, Result) for questions related to leadership, collaboration, conflict resolution, and problem-solving.

• Accessibility: Be ready to explain WCAG guidelines and how you would ensure compliance in a component library.

📝 Enhancement Note: The interview process is designed to thoroughly assess both technical expertise and leadership capabilities. A strong, well-documented portfolio is essential, serving as the primary evidence of your ability to lead a design systems team and deliver high-quality, accessible components.

🛠 Tools & Technology Stack

Primary Tools:

• Frontend Framework: React (Primary), potentially Vue.js (Preferred).

• Languages: TypeScript, JavaScript, HTML, CSS.

• Component Library/Design System Tools: Storybook (essential for documentation and development), Style Dictionary or Token Studio (for design tokens).

• CSS Technologies: Modern CSS (CSS Custom Properties), CSS-in-JS solutions, Utility-First Frameworks (e.g., Tailwind CSS).

Analytics & Reporting:

• Testing Frameworks: Jest, React Testing Library (for unit tests), Cypress or Playwright (for end-to-end/visual regression tests).

• Accessibility Auditing Tools: Axe-core, Lighthouse, WAVE.

CRM & Automation: While not directly managing CRM, understanding how design systems integrate with applications that use CRMs is beneficial. The focus here is on the development and deployment pipeline.

• Build Tools: Vite, Rollup, Webpack.

• Package Management: npm, pnpm, Yarn.

• Monorepo Tools (Preferred): Nx, Turborepo.

• CI/CD: Jenkins, GitLab CI, GitHub Actions (for automating builds, tests, and releases).

• Version Control: Git.

• Design Tools: Figma (crucial for collaboration with designers).

📝 Enhancement Note: Proficiency in React and TypeScript is non-negotiable. The emphasis on design system tooling like Storybook and design token management, alongside robust testing and build tools, highlights the technical requirements for this role. Figma integration is also a key aspect.

👥 Team Culture & Values

Operations Values:

• Respect: Valuing diverse perspectives and fostering an inclusive environment where all team members feel heard and appreciated.

• Integrity: Upholding ethical standards, transparency in communication, and accountability for actions and decisions.

• Service: Dedication to providing high-quality, reliable components and support to internal engineering teams, enabling them to deliver excellent customer experiences.

• Excellence: Striving for the highest standards in code quality, design implementation, accessibility, and performance, with a commitment to continuous improvement.

• Stewardship: Responsible management of shared resources, including the design system, ensuring its long-term health, scalability, and strategic alignment with Barclays' goals.

Collaboration Style:

• Cross-functional Integration: Proactive engagement with Product Management and UX/UI Design to ensure the design system meets evolving business needs and user experience goals.

• Developer Enablement: A strong focus on supporting and empowering other engineering teams through clear documentation, intuitive APIs, and responsive assistance.

• Feedback Loops: Establishing and maintaining robust feedback mechanisms to gather input from component consumers and iterate on the design system effectively.

• Knowledge Sharing: Actively participating in and promoting knowledge sharing sessions, code reviews, and documentation updates to foster a learning culture.

📝 Enhancement Note: The Barclays Values are central to the expected behavior. For this role, "Service" and "Excellence" are particularly relevant, as the design system team serves other engineering teams and strives for high-quality outputs. "Stewardship" underscores the long-term responsibility for a critical platform asset.

⚡ Challenges & Growth Opportunities

Challenges:

• Driving Adoption: Overcoming resistance or inertia from established teams to adopt a new or evolving design system requires strong influence, clear value proposition, and excellent support.

• Balancing Needs: Simultaneously meeting the diverse requirements of multiple product teams while maintaining the integrity and consistency of the design system.

• Technical Debt Management: Proactively managing and refactoring the component library to avoid accumulating technical debt as technologies and best practices evolve.

• Scalability & Performance: Ensuring the design system remains performant and scalable as the number of components and consuming applications grows.

• Cross-Team Dependencies: Navigating dependencies with other platform teams (e.g., backend services, infrastructure) and managing communication effectively.

Learning & Development Opportunities:

• Advanced Frontend Architecture: Deepen knowledge in areas like micro-frontends, performance optimization techniques, and state management patterns.

• Design Systems Expertise: Become a recognized expert in design system strategy, implementation, and community building.

• Leadership Skills: Develop advanced mentoring, coaching, and people management skills through formal training and practical experience.

• Accessibility Mastery: Gain deeper expertise in accessibility standards, assistive technologies, and inclusive design methodologies.

• Industry Trends: Stay abreast of emerging frontend technologies, design patterns, and tools relevant to UI engineering and design systems.

📝 Enhancement Note: The challenges highlight the strategic and influential nature of the role, requiring more than just technical skills. Growth opportunities are clearly defined, catering to both deep technical specialization and broader leadership development.

💡 Interview Preparation

Strategy Questions:

• "Describe your approach to building a scalable and maintainable React component library from scratch. What are the key architectural considerations?" (Focus on modularity, theming, API design, testing strategy).

• "How would you champion the adoption of a design system across multiple engineering teams with varying levels of technical maturity?" (Focus on communication, training, support, demonstrating value, feedback loops).

Company & Culture Questions:

• "Based on your understanding of Barclays as a financial institution, what are the most critical considerations for a design system in this industry?" (Focus on security, compliance, accessibility, brand consistency, reliability).

• "How do you foster a collaborative and inclusive culture within an engineering team, especially when leading a design systems initiative?" (Focus on mentorship, communication, psychological safety, shared ownership).

Portfolio Presentation Strategy:

• Narrative Arc: Structure your presentation with a clear story for each project: problem, solution, your role, outcomes, and key learnings.

• Visual Aids: Use clear screenshots, diagrams, and code snippets to illustrate your points. For design system projects, show how components are used across different applications.

• Interactive Elements: Be prepared to demo live components or walk through code if asked.

• Quantify Impact: Emphasize metrics and ROI. For example, "Reduced UI development time by X%", "Achieved Y% accessibility compliance", "Increased component reuse by Z applications."

• Connect to Barclays: Where possible, subtly link your experience and approach to the company's values and industry context.

📝 Enhancement Note: Preparation should focus on demonstrating not only technical prowess but also strategic thinking, leadership potential, and an understanding of the unique challenges and opportunities within a large financial services organization.

📌 Application Steps

To apply for this Senior UI Engineer - Design Systems Team Lead position:

• Submit your application through the Barclays careers portal using the provided link.

• Curate Your Portfolio: Select 3-5 of your most impactful projects related to design systems, component libraries, and team leadership. Ensure each project clearly outlines the problem, your role, technical solutions, and measurable outcomes.

• Tailor Your Resume: Highlight experience in React, TypeScript, design systems, accessibility, team leadership, and stakeholder management. Use keywords from the job description to ensure ATS compatibility.

• Prepare Your Narrative: Practice articulating your experience and portfolio projects, focusing on leadership, strategic thinking, and technical depth. Be ready to discuss your approach to building and scaling design systems.

• Research Barclays: Understand the company's values, its position in the financial services industry, and its commitment to digital transformation. This will help you tailor your responses and demonstrate cultural fit.

⚠️ 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.