Senior UI Engineer

📍 Job Overview

Job Title: Senior UI Engineer

Company: ICAP

Location: London, United Kingdom

Job Type: FULL_TIME

Category: Revenue Operations / GTM Technology

Date Posted: April 30, 2026

Experience Level: 10+ Years

Remote Status: Hybrid

🚀 Role Summary

• Lead the development and evolution of a critical Business Operations UI platform, directly impacting systems that manage over £1 billion in revenue calculations.

• Drive engineering excellence and set technical standards for UI development across corporate functions, focusing on modern, scalable, and intuitive technology services.

• Champion modern development practices, including observability, monitoring, CI/CD, and advanced testing strategies within agile delivery squads.

• Foster technical growth and knowledge sharing across UI, API, and DevOps disciplines through mentorship and guidance on best practices.

• Build strategic relationships with business stakeholders and technology teams to ensure seamless integration and adherence to enterprise development standards.

📝 Enhancement Note: While the job title is "Senior UI Engineer," the description strongly positions this role within the GTM Technology and Revenue Operations sphere. The emphasis on "Business Operations UI platform," "revenue calculations across brokerage, pricing, and commercial operations," and "business impact" indicates a strategic role focused on enabling and optimizing revenue-generating processes through user interface development. This is not a purely aesthetic UI role but one deeply integrated with commercial outcomes.

📈 Primary Responsibilities

• Develop and evolve front-end components using React, Next.js, and TypeScript, adhering to TP ICAP's established standards and leading the creation of shared component libraries for enterprise-wide reuse.

• Drive cross-team collaboration on critical API integrations, shared utility libraries, and complex data visualization requirements, with a specific focus on addressing performance challenges inherent in data-heavy financial applications.

• Champion and implement modern front-end engineering practices, including robust observability, proactive monitoring, efficient CI/CD pipelines, and streamlined deployment processes.

• Implement and maintain comprehensive testing strategies, encompassing unit tests, component testing with React Testing Library, end-to-end testing with Playwright, and detailed Storybook documentation for reusability and clarity.

• Mentor and develop engineering talent within the UI team, focusing on TypeScript best practices, advanced React patterns, and monorepo development methodologies, thereby fostering knowledge sharing across UI, API, and DevOps disciplines.

• Build and maintain strategic relationships with business stakeholders and various technology teams to ensure the seamless integration of UI solutions and strict adherence to enterprise development standards.

• Contribute to the migration of legacy front-end systems into modern, scalable architectures, ensuring minimal disruption and maximum efficiency gains.

• Ensure adherence to front-end security principles, including secure authentication flows and data protection measures within the UI platform.

📝 Enhancement Note: The responsibilities highlight a hands-on leadership role. The expectation to "develop front-end components" and "champion modern development practices" means this Senior UI Engineer will be both an individual contributor and a technical leader. The emphasis on "cross-team collaboration on API integrations" and "complex data visualisation" points to a need for strong architectural thinking and problem-solving skills within a complex financial data environment.

🎓 Skills & Qualifications

Education:

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.

Experience:

• Extensive, proven experience leading front-end engineering teams, particularly within the financial services sector.

• Specific experience in brokerage operations, pricing systems, or trading platforms is highly desirable.

• Demonstrated success in migrating legacy front-end systems to modern, scalable architectures.

• Proven experience managing cross-functional UI teams, including React developers, UX designers, API specialists, and QA automation engineers, across onshore and offshore delivery models.

Required Skills:

• Strong expertise in React, Next.js, and TypeScript, including deep understanding of monorepo architectures, shared component libraries, and enterprise authentication patterns.

• Solid understanding of cloud architecture, specifically AWS, and familiarity with microservices and data engineering practices.

• Proficient in implementing and managing CI/CD pipelines, Infrastructure as Code (IaC), and automated QA frameworks.

• Strong knowledge of front-end security principles and secure authentication flows.

• Excellent stakeholder management and communication skills, with the ability to articulate technical concepts to non-technical audiences.

• Experience with unit testing, component testing (React Testing Library), and end-to-end testing (Playwright).

Preferred Skills:

• Familiarity with Python or C# for backend integration or scripting purposes.

• Good understanding of brokerage workflows, discounting logic, and pricing models.

• Exposure to regulatory frameworks and operational risk controls in financial markets.

• Experience with complex data visualization techniques specifically for financial applications.

• Cloud engineering certification or demonstrable equivalent experience.

• Familiarity with architecture principles and agile delivery at scale.

📝 Enhancement Note: The "Essential" and "Desired" sections clearly define the core technical and domain requirements. The AI-derived experience level of "10+" aligns with the "Senior" title and the expectation of leading teams and migrating complex systems. The inclusion of specific testing tools like Playwright and React Testing Library, along with Storybook, indicates a mature development process.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase successful migration projects from legacy front-end systems to modern architectures, detailing the challenges, solutions, and outcomes.

• Provide examples of enterprise-level component libraries and shared utility libraries developed and implemented, demonstrating reusability and adherence to design systems.

• Present case studies of complex API integrations, highlighting the strategies used to ensure seamless data flow and robust error handling in data-heavy applications.

Process Documentation:

• Documented examples of CI/CD pipeline configurations and automation strategies implemented.

• Evidence of implementing comprehensive testing strategies, including unit, component, and E2E tests, with clear metrics on test coverage and effectiveness.

• Examples of how observability and monitoring were integrated into front-end applications to ensure system health and performance.

• Workflow designs and optimizations for agile delivery at scale, demonstrating an understanding of iterative development and continuous improvement cycles.

📝 Enhancement Note: For a Senior UI Engineer role, especially one focused on business operations and revenue systems, a portfolio demonstrating not just coding skills but also architectural thinking, process improvement, and business impact is crucial. The emphasis is on how the candidate has used technology to solve complex problems, improve efficiency, and drive commercial value.

💵 Compensation & Benefits

Salary Range:

Benefits:

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

• Generous pension scheme with employer contributions.

• Performance-based bonuses and potential for stock options or long-term incentives.

• Opportunities for professional development, including training courses, certifications, and conference attendance.

• Generous annual leave allowance, typically starting at 25 days, plus public holidays.

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

• Access to corporate wellness programs and employee assistance services.

Working Hours:

• Standard full-time working hours are typically 40 hours per week.

• The hybrid work arrangement allows for flexibility in structuring these hours, with a requirement to be present in the London office (135 Bishopsgate) for a portion of the week, likely 2-3 days, to facilitate collaboration and team engagement.

📝 Enhancement Note: Salary ranges for senior technical roles in London's financial district are high. The provided range reflects the seniority, specialized skills (React, Next.js, TypeScript in finance), and leadership responsibilities, as well as the significant business impact (£1 billion+ revenue). The benefits listed are typical for large financial institutions.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services / Market Infrastructure / Interdealer Broking. TP ICAP operates at the intersection of financial markets and technology, providing essential services that improve price discovery, liquidity, and data distribution globally.

Company Size: Approximately 5,200 employees globally. This signifies a large, established organization with a significant global footprint, offering opportunities for large-scale project involvement and cross-functional collaboration.

Founded: 1866. TP ICAP has a long history, indicating stability and deep industry knowledge, now heavily investing in modernizing its technology infrastructure.

Team Structure:

• The role will likely be part of a dedicated Business Operations Technology team, focusing on UI development for revenue-critical systems.

• This team will be matrixed, with direct reporting to a Head of Engineering for UI or a similar leadership role, and will collaborate closely with Product Managers, Business Analysts, API engineers, QA specialists, and UX designers.

• Cross-functional collaboration is a key aspect, involving engagement with business stakeholders, commercial teams, and other technology departments across the group to ensure alignment and integration.

Methodology:

• Agile delivery methodologies are central, with work organized within agile squads.

• Emphasis on modern development practices, including CI/CD, observability, and automated testing.

• Data-driven decision-making is implied, given the focus on revenue calculations and performance metrics.

• A culture of engineering excellence, continuous learning, and innovation is promoted.

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

📝 Enhancement Note: Understanding TP ICAP's position as a market infrastructure provider is key. They are not a fintech startup but a traditional financial institution undergoing significant technological transformation. This implies a culture that balances established processes with a drive for innovation, and a need for engineers who can navigate both. The size and history suggest robust, but potentially complex, legacy systems alongside new development.

📈 Career & Growth Analysis

Operations Career Level: Manager / Level 6. This indicates a senior individual contributor or a first-line management role with significant responsibility for technical direction, team mentorship, and project delivery. It sits above standard engineer roles and below senior management.

Reporting Structure: The Senior UI Engineer will likely report to a Head of Engineering, Director of Technology, or similar leadership within the Business Operations Technology division. They will also work closely with Product Owners and cross-functional teams.

Operations Impact: This role has a direct and substantial impact on revenue generation. By leading the development of UI platforms for brokerage, pricing, and commercial operations, the engineer will influence systems that underpin over £1 billion in revenue. Improvements in UI usability, performance, and data visualization can lead to increased efficiency, better decision-making, and ultimately, higher revenue realization.

Growth Opportunities:

• Technical Leadership: Progress to Principal UI Engineer, Architect, or Fellow roles, focusing on complex technical challenges and setting strategic technical direction for UI development across the organization.

• Management Path: Transition into a formal management role (e.g., Engineering Manager, Head of UI Development) overseeing larger teams and broader technical portfolios.

• Domain Specialization: Deepen expertise in financial services, brokerage operations, or specific areas like data visualization and trading platforms, becoming a subject matter expert.

• Cross-functional Mobility: Opportunities to move into related areas like product management, technical program management, or enterprise architecture.

• Continuous Learning: Access to training, certifications, and conferences to stay abreast of the latest front-end technologies and financial market trends.

📝 Enhancement Note: The "Manager / 6" band suggests a significant level of responsibility, often including mentorship and potentially some team leadership, even if not direct line management. The emphasis on revenue impact and transformation positions this as a high-visibility role with clear growth potential within a large, evolving organization.

🌐 Work Environment

Office Type: The role is based in London at 135 Bishopsgate, a prime city location. This suggests a modern, professional office environment typical of major financial institutions, designed to support collaboration and focused work.

Office Location(s): The primary location is 135 Bishopsgate, London, United Kingdom. This is a well-known financial district hub.

Workspace Context:

• The office environment will likely offer a mix of collaborative spaces (meeting rooms, breakout areas) and individual workstations designed for focused coding and development.

• Access to high-performance computing resources, robust network infrastructure, and the latest development tools and technologies will be standard.

• Opportunities for direct interaction with business stakeholders, product teams, and fellow engineers will be frequent, fostering a dynamic and collaborative atmosphere.

Work Schedule:

• The hybrid work schedule provides flexibility, typically requiring 2-3 days per week in the London office. This allows for a balance between focused remote work and in-person collaboration, essential for team cohesion and strategic alignment. The exact days may be team-dependent or agreed upon with management.

📝 Enhancement Note: The London office location is prestigious and central, indicating a company that invests in its physical infrastructure. The hybrid model is standard for many senior tech roles, balancing flexibility with the need for in-person collaboration, especially in a transformation initiative.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A brief call with a Talent Acquisition specialist to assess basic qualifications, cultural fit, and interest in the role and company.

• Technical Screening: A coding challenge or technical interview focused on core UI skills (React, TypeScript, Next.js), potentially involving live coding or a take-home assignment.

• Hiring Manager Interview: In-depth discussion about experience, leadership style, approach to problem-solving, and alignment with team and company goals. This is where portfolio discussion will often begin.

• Panel Interview / Technical Deep Dive: A session with senior engineers and potentially cross-functional stakeholders to assess technical depth, architectural thinking, and experience with complex systems (e.g., AWS, CI/CD, data visualization). Portfolio review will be a significant part of this.

• Stakeholder/Business Interview: Conversation with key business leaders or product managers to evaluate understanding of business impact, communication skills, and ability to translate technical solutions into commercial value.

• Final Round: Potentially a final discussion with a senior director or VP to confirm fit and address any remaining questions.

Portfolio Review Tips:

• Focus on Impact: Select 2-3 key projects that demonstrate significant business impact, especially those related to revenue generation, process efficiency, or system modernization. Quantify results with metrics (e.g., performance improvements, cost savings, revenue uplift).

• Showcase Technical Breadth: Include examples that highlight your expertise in React, Next.js, TypeScript, monorepos, and enterprise authentication. Also, showcase experience with AWS, CI/CD, and advanced testing methodologies.

• Demonstrate Leadership: Highlight instances where you led teams, mentored engineers, set technical standards, or drove architectural decisions.

• Explain the "Why": For each project, clearly articulate the problem you were solving, your approach, the technologies used, your specific contributions, and the lessons learned.

• Prepare for Deep Dives: Be ready to discuss architectural choices, trade-offs, challenges faced, and how you collaborated with other teams.

Challenge Preparation:

• Coding Exercises: Practice common algorithm and data structure problems, as well as specific React/TypeScript component development scenarios.

• System Design: Prepare to discuss how you would design scalable, performant, and secure UI systems, considering factors like microservices, API integrations, and cloud deployment.

• Problem-Solving Scenarios: Be ready to analyze and propose solutions for hypothetical complex UI challenges, especially those related to data visualization in financial contexts or migrating legacy systems.

• Behavioral Questions: Prepare STAR method (Situation, Task, Action, Result) answers for questions related to leadership, teamwork, conflict resolution, and handling pressure.

📝 Enhancement Note: The emphasis on a "major transformation initiative" and "significant investment" suggests that interviewers will be looking for candidates who can not only code but also strategize, lead, and drive change. A strong portfolio that clearly articulates business impact and technical leadership is paramount.

🛠 Tools & Technology Stack

Primary Tools:

• Core Frontend Frameworks: React, Next.js

• Language: TypeScript

• Component Libraries: Custom-built shared component libraries, Storybook

• Testing Frameworks: React Testing Library (unit/component), Playwright (E2E)

• Monorepo Management: Tools like Nx or Lerna (implied by monorepo architecture)

Analytics & Reporting:

• Observability & Monitoring: Tools for tracing, logging, and performance monitoring (e.g., Datadog, New Relic, Splunk – specific tools not mentioned but expected).

• Analytics Platforms: Potentially integrated analytics for user behavior and system performance within the UI.

CRM & Automation:

• Cloud Platform: Amazon Web Services (AWS) for hosting and infrastructure.

• CI/CD Tools: Jenkins, GitLab CI, GitHub Actions, or similar for automated build, test, and deployment pipelines.

• Infrastructure as Code (IaC): Terraform, CloudFormation, or similar for managing cloud resources.

• API Integration: RESTful APIs, potentially GraphQL. Experience with API gateways and management.

• Version Control: Git (e.g., GitHub, GitLab)

📝 Enhancement Note: The technology stack is modern and robust, reflecting current best practices in enterprise front-end development. The explicit mention of AWS, CI/CD, IaC, and specific testing tools indicates a mature DevOps culture and a need for engineers comfortable with these environments.

👥 Team Culture & Values

Operations Values:

• Engineering Excellence: A commitment to high-quality code, robust testing, and scalable architecture.

• Collaboration: Working effectively across teams (UI, API, DevOps, Product, Business) to achieve shared goals.

• Business Impact: A focus on delivering solutions that drive commercial value and improve revenue-generating processes.

• Innovation: Embracing new technologies and methodologies to solve complex problems and improve efficiency.

• Continuous Improvement: A proactive approach to learning, process refinement, and system optimization.

• Inclusivity: Valuing diverse perspectives and fostering a welcoming environment where everyone can contribute.

Collaboration Style:

• Agile and Iterative: Working in sprints, with regular feedback loops and adaptive planning.

• Cross-functional Integration: Close partnerships with product management, business stakeholders, and other engineering disciplines (backend, QA, DevOps).

• Knowledge Sharing: Encouraging open communication, pair programming, code reviews, and internal presentations to disseminate best practices and technical insights.

• Data-Informed: Utilizing data and metrics to guide decisions, measure success, and identify areas for improvement.

📝 Enhancement Note: TP ICAP's stated commitment to inclusivity is a significant cultural aspect. For operations roles, the emphasis on business impact, efficiency, and data-driven decision-making is paramount. The "one team" approach mentioned in the company description suggests a strong emphasis on collaboration.

⚡ Challenges & Growth Opportunities

Challenges:

• Legacy System Migration: Successfully migrating complex, mission-critical legacy front-end systems to modern architectures while minimizing disruption to revenue-generating operations.

• Data-Heavy Applications: Optimizing performance and user experience for UIs that handle large volumes of real-time financial data, requiring advanced techniques in data visualization and state management.

• Cross-Geographical Collaboration: Effectively managing and collaborating with distributed teams (onshore/offshore) to ensure consistent delivery and knowledge transfer.

• Balancing Innovation with Stability: Implementing cutting-edge technologies and practices within a large, established financial institution that requires high levels of stability, security, and regulatory compliance.

• Stakeholder Alignment: Navigating diverse stakeholder requirements and ensuring technical solutions meet both business needs and enterprise standards.

Learning & Development Opportunities:

• Advanced Technologies: Deepen expertise in React, Next.js, TypeScript, and modern cloud-native architectures.

• Financial Domain Expertise: Gain in-depth knowledge of brokerage workflows, pricing models, financial regulations, and operational risk within the capital markets.

• Leadership Skills: Develop formal leadership and management capabilities through mentorship, training, and taking on increasing levels of responsibility.

• Industry Trends: Stay at the forefront of UI engineering, FinTech innovation, and market infrastructure evolution through conferences, workshops, and continuous professional development.

• Cross-functional Exposure: Opportunities to learn about backend systems, data engineering, DevOps practices, and product management within the financial services context.

📝 Enhancement Note: The challenges presented are typical for senior roles in large financial institutions undergoing transformation. The growth opportunities are aligned with senior technical and leadership career paths within specialized industries.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex legacy front-end system you've migrated. What were the biggest challenges, and how did you overcome them? What metrics did you use to measure success?" (Focus on process, technical solutions, and business impact.)

• "How would you design a scalable, performant UI component library for enterprise-wide use, considering maintainability, accessibility, and adoption by multiple teams?" (Focus on architecture, standards, and collaboration.)

• "Given a scenario where a critical pricing UI is experiencing performance issues with large datasets, what steps would you take to diagnose and resolve the problem?" (Focus on problem-solving, debugging, and performance optimization techniques.)

Company & Culture Questions:

• "How do you foster a culture of engineering excellence and continuous learning within a team?" (Focus on leadership and team development.)

• "Describe your experience working with cross-functional teams and diverse stakeholders in a hybrid or distributed environment." (Focus on collaboration and communication.)

• "What are your thoughts on TP ICAP's role in market infrastructure, and how do you see technology driving innovation in this space?" (Focus on industry awareness and strategic thinking.)

Portfolio Presentation Strategy:

• Structure your narrative: For each project, clearly outline: Problem -> Solution (your approach and technologies) -> Your Role & Contributions -> Outcomes (quantified impact) -> Lessons Learned.

• Highlight Business Value: Explicitly connect your technical work to business outcomes such as revenue generation, cost savings, efficiency improvements, or risk reduction.

• Detail Technical Depth: Be prepared to dive deep into architectural decisions, technical challenges, and specific implementation details for your chosen projects.

• Showcase Leadership: Emphasize instances where you led initiatives, mentored others, or influenced technical direction.

• Be concise and engaging: Use visuals where appropriate (e.g., architecture diagrams, screenshots) but focus on clear, impactful storytelling.

📝 Enhancement Note: The interview process will likely assess not only technical prowess but also strategic thinking, leadership potential, and the ability to operate effectively within a large financial services organization undergoing transformation. Candidates should be prepared to articulate their impact in terms of business value.

📌 Application Steps

To apply for this Senior UI Engineer position:

• Submit your application through the provided application link on the TP ICAP careers portal.

• Portfolio Customization: Curate your portfolio to specifically highlight projects demonstrating your expertise in React, Next.js, TypeScript, enterprise-scale component libraries, legacy system migrations, and data visualization within financial contexts. Quantify the impact of your work on business objectives.

• Resume Optimization: Tailor your resume to emphasize leadership experience, front-end architecture, cloud technologies (AWS), CI/CD, and your experience in the financial services sector. Use keywords from the job description naturally.

• Interview Preparation: Practice answering technical, behavioral, and situational questions, focusing on the STAR method. Prepare to present your portfolio with a clear narrative of problem, solution, impact, and lessons learned.

• Company Research: Thoroughly research TP ICAP's business, its role in market infrastructure, its recent technological investments, and its stated company values (especially inclusivity and engineering excellence). Understand the £1 billion+ revenue context.

⚠️ 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.